* new Dispatcher::getCADFailRetryDelay()

* ESP32: SerialBLEInterface, delay(500) not needed
* esp32 SerialBLEInterface: 1 second delay now applied before testing whether to re-start advertising
2026-08-08 19:09:47 +00:00 · 2025-02-27 04:05:50 +11:00 · 2025-02-26 21:08:54 +11:00 · 2025-02-26 20:53:31 +11:00 · 2025-02-26 18:35:45 +11:00 · 2025-02-26 20:24:14 +13:00
152 changed files with 14370 additions and 30019 deletions
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+.pio
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json
+.vscode/ipch
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+{
+    // See http://go.microsoft.com/fwlink/?LinkId=827846
+    // for the documentation about the extensions.json format
+    "recommendations": [
+        "platformio.platformio-ide"
+    ],
+    "unwantedRecommendations": [
+        "ms-vscode.cpptools-extension-pack"
+    ]
+}
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-docs.meshcore.io
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+## About MeshCore
+
+MeshCore is a lightweight, portable C++ library that enables multi-hop packet routing for embedded projects using LoRa and other packet radios. It is designed for developers who want to create resilient, decentralized communication networks that work without the internet.
+
+## 🔍 What is MeshCore?
+
+MeshCore now supports a range of LoRa devices, allowing for easy flashing without the need to compile firmware manually. Users can flash a pre-built binary using tools like Adafruit ESPTool and interact with the network through a serial console.
+MeshCore provides the ability to create wireless mesh networks, similar to Meshtastic and Reticulum but with a focus on lightweight multi-hop packet routing for embedded projects. Unlike Meshtastic, which is tailored for casual LoRa communication, or Reticulum, which offers advanced networking, MeshCore balances simplicity with scalability, making it ideal for custom embedded solutions., where devices (nodes) can communicate over long distances by relaying messages through intermediate nodes. This is especially useful in off-grid, emergency, or tactical situations where traditional communication infrastructure is unavailable.
+
+## ⚡ Key Features
+
+* Multi-Hop Packet Routing – Devices can forward messages across multiple nodes, extending range beyond a single radio's reach. MeshCore supports up to a configurable number of hops to balance network efficiency and prevent excessive traffic.
+* Supports LoRa Radios – Works with Heltec, RAK Wireless, and other LoRa-based hardware.
+* Decentralized & Resilient – No central server or internet required; the network is self-healing.
+* Low Power Consumption – Ideal for battery-powered or solar-powered devices.
+* Simple to Deploy – Pre-built example applications make it easy to get started.
+
+## 🎯 What Can You Use MeshCore For?
+
+* Off-Grid Communication: Stay connected even in remote areas.
+* Emergency Response & Disaster Recovery: Set up instant networks where infrastructure is down.
+* Outdoor Activities: Hiking, camping, and adventure racing communication.
+* Tactical & Security Applications: Military, law enforcement, and private security use cases.
+* IoT & Sensor Networks: Collect data from remote sensors and relay it back to a central location.
+
+## 🚀 How to Get Started
+
+Flash the Firmware: Download the pre-built firmware binary for Heltec V3 and flash it using Adafruit ESPTool.
+Install [PlatformIO](https://docs.platformio.org) in Visual Studio Code (optional for developers who want to modify the firmware).
+Download & Open the MeshCore repository.
+Select a Sample Application: Choose from chat, ping, repeater, or admin test tools.
+Monitor & Communicate using the Serial Monitor (e.g., Serial USB Terminal on Android).
+
+📁 Included Example Applications
+* 📡 Terminal Chat: Secure text communication between devices.
+* 📡 Simple Repeater: Extends network coverage by relaying messages.
+* 📡 Companion Radio: For use with an external chat app, over BLE or USB.
+* 📡 Room Server: A simple BBS server for shared Posts.
+* 📡 Ping Client, Ping Server & Client: Basic client/server example.
+* 📡 Test Admin: Monitors and manages repeaters remotely.
+
+## 🛠 Hardware Compatibility
+
+MeshCore is designed for use with:
+* Heltec V3 LoRa Boards
+* RAK4631
+* XiaoS3 WIO (sx1262 combo)
+* XiaoC3 (plus external sx126x module)
+* LilyGo T3S3
+* Heltec T114
+* Station G2
+
+## 📜 License
+MeshCore is open-source software released under the MIT License. You are free to use, modify, and distribute it for personal and commercial projects.
+
+## 📞 Get Support
+
+Check out the GitHub Issues page to report bugs or request features.
+
+You will be able to find additional guides and components at [my site](https://buymeacoffee.com/ripplebiz), or [join Andy Kirby's Discord](https://discord.gg/GBxVx2JMAy) for discussions.
+
+## RAK Wireless Board Support in PlatformIO
+
+Before building/flashing the RAK4631 targets in this project, there is, unfortunately, some patching you have to do to your platformIO packages to make it work. There is a guide here on the process:
+   [RAK Wireless: How to Perform Installation of Board Support Package in PlatformIO](https://learn.rakwireless.com/hc/en-us/articles/26687276346775-How-To-Perform-Installation-of-Board-Support-Package-in-PlatformIO)
+
+After building, you will need to convert the output firmware.hex file into a .uf2 file you can copy over to your RAK4631 device (after doing a full erase) by using the command `uf2conv.py -f 0xADA52840 -c firmware.hex` with the python script available from:
+   [GitHub: Microsoft - uf2](https://github.com/Microsoft/uf2/blob/master/utils/uf2conv.py)
+
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- * based on
- * Snowball JavaScript Library v0.3
- * http://code.google.com/p/urim/
- * http://snowball.tartarus.org/
- *
- * Copyright 2010, Oleg Mazko
- * http://www.mozilla.org/MPL/
- */
-
-!function(e,r){"function"==typeof define&&define.amd?define(r):"object"==typeof exports?module.exports=r():r()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. Please include / require Lunr before this script.");if(void 0===e.stemmerSupport)throw new Error("Lunr stemmer support is not present. Please include / require Lunr stemmer support before this script.");e.da=function(){this.pipeline.reset(),this.pipeline.add(e.da.trimmer,e.da.stopWordFilter,e.da.stemmer),this.searchPipeline&&(this.searchPipeline.reset(),this.searchPipeline.add(e.da.stemmer))},e.da.wordCharacters="A-Za-zªºÀ-ÖØ-öø-ʸˠ-ˤᴀ-ᴥᴬ-ᵜᵢ-ᵥᵫ-ᵷᵹ-ᶾḀ-ỿⁱⁿₐ-ₜKÅℲⅎⅠ-ↈⱠ-ⱿꜢ-ꞇꞋ-ꞭꞰ-ꞷꟷ-ꟿꬰ-ꭚꭜ-ꭤﬀ-ﬆＡ-Ｚａ-ｚ",e.da.trimmer=e.trimmerSupport.generateTrimmer(e.da.wordCharacters),e.Pipeline.registerFunction(e.da.trimmer,"trimmer-da"),e.da.stemmer=function(){var r=e.stemmerSupport.Among,i=e.stemmerSupport.SnowballProgram,n=new function(){function e(){var e,r=f.cursor+3;if(d=f.limit,0<=r&&r<=f.limit){for(a=r;;){if(e=f.cursor,f.in_grouping(w,97,248)){f.cursor=e;break}if(f.cursor=e,e>=f.limit)return;f.cursor++}for(;!f.out_grouping(w,97,248);){if(f.cursor>=f.limit)return;f.cursor++}d=f.cursor,d<a&&(d=a)}}function n(){var e,r;if(f.cursor>=d&&(r=f.limit_backward,f.limit_backward=d,f.ket=f.cursor,e=f.find_among_b(c,32),f.limit_backward=r,e))switch(f.bra=f.cursor,e){case 1:f.slice_del();break;case 2:f.in_grouping_b(p,97,229)&&f.slice_del()}}function t(){var e,r=f.limit-f.cursor;f.cursor>=d&&(e=f.limit_backward,f.limit_backward=d,f.ket=f.cursor,f.find_among_b(l,4)?(f.bra=f.cursor,f.limit_backward=e,f.cursor=f.limit-r,f.cursor>f.limit_backward&&(f.cursor--,f.bra=f.cursor,f.slice_del())):f.limit_backward=e)}function s(){var e,r,i,n=f.limit-f.cursor;if(f.ket=f.cursor,f.eq_s_b(2,"st")&&(f.bra=f.cursor,f.eq_s_b(2,"ig")&&f.slice_del()),f.cursor=f.limit-n,f.cursor>=d&&(r=f.limit_backward,f.limit_backward=d,f.ket=f.cursor,e=f.find_among_b(m,5),f.limit_backward=r,e))switch(f.bra=f.cursor,e){case 1:f.slice_del(),i=f.limit-f.cursor,t(),f.cursor=f.limit-i;break;case 2:f.slice_from("løs")}}function o(){var e;f.cursor>=d&&(e=f.limit_backward,f.limit_backward=d,f.ket=f.cursor,f.out_grouping_b(w,97,248)?(f.bra=f.cursor,u=f.slice_to(u),f.limit_backward=e,f.eq_v_b(u)&&f.slice_del()):f.limit_backward=e)}var a,d,u,c=[new r("hed",-1,1),new r("ethed",0,1),new r("ered",-1,1),new r("e",-1,1),new r("erede",3,1),new r("ende",3,1),new r("erende",5,1),new r("ene",3,1),new r("erne",3,1),new r("ere",3,1),new r("en",-1,1),new r("heden",10,1),new r("eren",10,1),new r("er",-1,1),new r("heder",13,1),new r("erer",13,1),new r("s",-1,2),new r("heds",16,1),new r("es",16,1),new r("endes",18,1),new r("erendes",19,1),new r("enes",18,1),new r("ernes",18,1),new r("eres",18,1),new r("ens",16,1),new r("hedens",24,1),new r("erens",24,1),new r("ers",16,1),new r("ets",16,1),new r("erets",28,1),new r("et",-1,1),new r("eret",30,1)],l=[new r("gd",-1,-1),new r("dt",-1,-1),new r("gt",-1,-1),new r("kt",-1,-1)],m=[new r("ig",-1,1),new r("lig",0,1),new r("elig",1,1),new r("els",-1,1),new r("løst",-1,2)],w=[17,65,16,1,0,0,0,0,0,0,0,0,0,0,0,0,48,0,128],p=[239,254,42,3,0,0,0,0,0,0,0,0,0,0,0,0,16],f=new i;this.setCurrent=function(e){f.setCurrent(e)},this.getCurrent=function(){return f.getCurrent()},this.stem=function(){var r=f.cursor;return e(),f.limit_backward=r,f.cursor=f.limit,n(),f.cursor=f.limit,t(),f.cursor=f.limit,s(),f.cursor=f.limit,o(),!0}};return function(e){return"function"==typeof e.update?e.update(function(e){return n.setCurrent(e),n.stem(),n.getCurrent()}):(n.setCurrent(e),n.stem(),n.getCurrent())}}(),e.Pipeline.registerFunction(e.da.stemmer,"stemmer-da"),e.da.stopWordFilter=e.generateStopWordFilter("ad af alle alt anden at blev blive bliver da de dem den denne der deres det dette dig din disse dog du efter eller en end er et for fra ham han hans har havde have hende hendes her hos hun hvad hvis hvor i ikke ind jeg jer jo kunne man mange med meget men mig min mine mit mod ned noget nogle nu når og også om op os over på selv sig sin sine sit skal skulle som sådan thi til ud under var vi vil ville vor være været".split(" ")),e.Pipeline.registerFunction(e.da.stopWordFilter,"stopWordFilter-da")}});
@@ -1 +0,0 @@
-!function(e,r){"function"==typeof define&&define.amd?define(r):"object"==typeof exports?module.exports=r():r()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. Please include / require Lunr before this script.");if(void 0===e.stemmerSupport)throw new Error("Lunr stemmer support is not present. Please include / require Lunr stemmer support before this script.");e.hi=function(){this.pipeline.reset(),this.pipeline.add(e.hi.trimmer,e.hi.stopWordFilter,e.hi.stemmer),this.searchPipeline&&(this.searchPipeline.reset(),this.searchPipeline.add(e.hi.stemmer))},e.hi.wordCharacters="ऀ-ःऄ-एऐ-टठ-यर-िी-ॏॐ-य़ॠ-९॰-ॿa-zA-Zａ-ｚＡ-Ｚ0-9０-９",e.hi.trimmer=e.trimmerSupport.generateTrimmer(e.hi.wordCharacters),e.Pipeline.registerFunction(e.hi.trimmer,"trimmer-hi"),e.hi.stopWordFilter=e.generateStopWordFilter("अत अपना अपनी अपने अभी अंदर आदि आप इत्यादि इन इनका इन्हीं इन्हें इन्हों इस इसका इसकी इसके इसमें इसी इसे उन उनका उनकी उनके उनको उन्हीं उन्हें उन्हों उस उसके उसी उसे एक एवं एस ऐसे और कई कर करता करते करना करने करें कहते कहा का काफ़ी कि कितना किन्हें किन्हों किया किर किस किसी किसे की कुछ कुल के को कोई कौन कौनसा गया घर जब जहाँ जा जितना जिन जिन्हें जिन्हों जिस जिसे जीधर जैसा जैसे जो तक तब तरह तिन तिन्हें तिन्हों तिस तिसे तो था थी थे दबारा दिया दुसरा दूसरे दो द्वारा न नके नहीं ना निहायत नीचे ने पर पहले पूरा पे फिर बनी बही बहुत बाद बाला बिलकुल भी भीतर मगर मानो मे में यदि यह यहाँ यही या यिह ये रखें रहा रहे ऱ्वासा लिए लिये लेकिन व वग़ैरह वर्ग वह वहाँ वहीं वाले वुह वे वो सकता सकते सबसे सभी साथ साबुत साभ सारा से सो संग ही हुआ हुई हुए है हैं हो होता होती होते होना होने".split(" ")),e.hi.stemmer=function(){return function(e){return"function"==typeof e.update?e.update(function(e){return e}):e}}();var r=e.wordcut;r.init(),e.hi.tokenizer=function(i){if(!arguments.length||null==i||void 0==i)return[];if(Array.isArray(i))return i.map(function(r){return isLunr2?new e.Token(r.toLowerCase()):r.toLowerCase()});var t=i.toString().toLowerCase().replace(/^\s+/,"");return r.cut(t).split("|")},e.Pipeline.registerFunction(e.hi.stemmer,"stemmer-hi"),e.Pipeline.registerFunction(e.hi.stopWordFilter,"stopWordFilter-hi")}});
@@ -1 +0,0 @@
-!function(e,r){"function"==typeof define&&define.amd?define(r):"object"==typeof exports?module.exports=r():r()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. Please include / require Lunr before this script.");if(void 0===e.stemmerSupport)throw new Error("Lunr stemmer support is not present. Please include / require Lunr stemmer support before this script.");e.hy=function(){this.pipeline.reset(),this.pipeline.add(e.hy.trimmer,e.hy.stopWordFilter)},e.hy.wordCharacters="[A-Za-z԰-֏ﬀ-ﭏ]",e.hy.trimmer=e.trimmerSupport.generateTrimmer(e.hy.wordCharacters),e.Pipeline.registerFunction(e.hy.trimmer,"trimmer-hy"),e.hy.stopWordFilter=e.generateStopWordFilter("դու և եք էիր էիք հետո նաև նրանք որը վրա է որ պիտի են այս մեջ ն իր ու ի այդ որոնք այն կամ էր մի ես համար այլ իսկ էին ենք հետ ին թ էինք մենք նրա նա դուք եմ էի ըստ որպես ում".split(" ")),e.Pipeline.registerFunction(e.hy.stopWordFilter,"stopWordFilter-hy"),e.hy.stemmer=function(){return function(e){return"function"==typeof e.update?e.update(function(e){return e}):e}}(),e.Pipeline.registerFunction(e.hy.stemmer,"stemmer-hy")}});
@@ -1 +0,0 @@
-!function(e,r){"function"==typeof define&&define.amd?define(r):"object"==typeof exports?module.exports=r():r()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. Please include / require Lunr before this script.");if(void 0===e.stemmerSupport)throw new Error("Lunr stemmer support is not present. Please include / require Lunr stemmer support before this script.");var r="2"==e.version[0];e.ja=function(){this.pipeline.reset(),this.pipeline.add(e.ja.trimmer,e.ja.stopWordFilter,e.ja.stemmer),r?this.tokenizer=e.ja.tokenizer:(e.tokenizer&&(e.tokenizer=e.ja.tokenizer),this.tokenizerFn&&(this.tokenizerFn=e.ja.tokenizer))};var t=new e.TinySegmenter;e.ja.tokenizer=function(i){var n,o,s,p,a,u,m,l,c,f;if(!arguments.length||null==i||void 0==i)return[];if(Array.isArray(i))return i.map(function(t){return r?new e.Token(t.toLowerCase()):t.toLowerCase()});for(o=i.toString().toLowerCase().replace(/^\s+/,""),n=o.length-1;n>=0;n--)if(/\S/.test(o.charAt(n))){o=o.substring(0,n+1);break}for(a=[],s=o.length,c=0,l=0;c<=s;c++)if(u=o.charAt(c),m=c-l,u.match(/\s/)||c==s){if(m>0)for(p=t.segment(o.slice(l,c)).filter(function(e){return!!e}),f=l,n=0;n<p.length;n++)r?a.push(new e.Token(p[n],{position:[f,p[n].length],index:a.length})):a.push(p[n]),f+=p[n].length;l=c+1}return a},e.ja.stemmer=function(){return function(e){return e}}(),e.Pipeline.registerFunction(e.ja.stemmer,"stemmer-ja"),e.ja.wordCharacters="一二三四五六七八九十百千万億兆一-龠々〆ヵヶぁ-んァ-ヴーｱ-ﾝﾞa-zA-Zａ-ｚＡ-Ｚ0-9０-９",e.ja.trimmer=e.trimmerSupport.generateTrimmer(e.ja.wordCharacters),e.Pipeline.registerFunction(e.ja.trimmer,"trimmer-ja"),e.ja.stopWordFilter=e.generateStopWordFilter("これ それ あれ この その あの ここ そこ あそこ こちら どこ だれ なに なん 何 私 貴方 貴方方 我々 私達 あの人 あのかた 彼女 彼 です あります おります います は が の に を で え から まで より も どの と し それで しかし".split(" ")),e.Pipeline.registerFunction(e.ja.stopWordFilter,"stopWordFilter-ja"),e.jp=e.ja,e.Pipeline.registerFunction(e.jp.stemmer,"stemmer-jp"),e.Pipeline.registerFunction(e.jp.trimmer,"trimmer-jp"),e.Pipeline.registerFunction(e.jp.stopWordFilter,"stopWordFilter-jp")}});
@@ -1 +0,0 @@
-module.exports=require("./lunr.ja");
@@ -1 +0,0 @@
-!function(e,r){"function"==typeof define&&define.amd?define(r):"object"==typeof exports?module.exports=r():r()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. Please include / require Lunr before this script.");if(void 0===e.stemmerSupport)throw new Error("Lunr stemmer support is not present. Please include / require Lunr stemmer support before this script.");e.kn=function(){this.pipeline.reset(),this.pipeline.add(e.kn.trimmer,e.kn.stopWordFilter,e.kn.stemmer),this.searchPipeline&&(this.searchPipeline.reset(),this.searchPipeline.add(e.kn.stemmer))},e.kn.wordCharacters="ಀ-಄ಅ-ಔಕ-ಹಾ-ೌ಼-ಽೕ-ೖೝ-ೞೠ-ೡೢ-ೣ೤೥೦-೯ೱ-ೳ",e.kn.trimmer=e.trimmerSupport.generateTrimmer(e.kn.wordCharacters),e.Pipeline.registerFunction(e.kn.trimmer,"trimmer-kn"),e.kn.stopWordFilter=e.generateStopWordFilter("ಮತ್ತು ಈ ಒಂದು ರಲ್ಲಿ ಹಾಗೂ ಎಂದು ಅಥವಾ ಇದು ರ ಅವರು ಎಂಬ ಮೇಲೆ ಅವರ ತನ್ನ ಆದರೆ ತಮ್ಮ ನಂತರ ಮೂಲಕ ಹೆಚ್ಚು ನ ಆ ಕೆಲವು ಅನೇಕ ಎರಡು ಹಾಗು ಪ್ರಮುಖ ಇದನ್ನು ಇದರ ಸುಮಾರು ಅದರ ಅದು ಮೊದಲ ಬಗ್ಗೆ ನಲ್ಲಿ ರಂದು ಇತರ ಅತ್ಯಂತ ಹೆಚ್ಚಿನ ಸಹ ಸಾಮಾನ್ಯವಾಗಿ ನೇ ಹಲವಾರು ಹೊಸ ದಿ ಕಡಿಮೆ ಯಾವುದೇ ಹೊಂದಿದೆ ದೊಡ್ಡ ಅನ್ನು ಇವರು ಪ್ರಕಾರ ಇದೆ ಮಾತ್ರ ಕೂಡ ಇಲ್ಲಿ ಎಲ್ಲಾ ವಿವಿಧ ಅದನ್ನು ಹಲವು ರಿಂದ ಕೇವಲ ದ ದಕ್ಷಿಣ ಗೆ ಅವನ ಅತಿ ನೆಯ ಬಹಳ ಕೆಲಸ ಎಲ್ಲ ಪ್ರತಿ ಇತ್ಯಾದಿ ಇವು ಬೇರೆ ಹೀಗೆ ನಡುವೆ ಇದಕ್ಕೆ ಎಸ್ ಇವರ ಮೊದಲು ಶ್ರೀ ಮಾಡುವ ಇದರಲ್ಲಿ ರೀತಿಯ ಮಾಡಿದ ಕಾಲ ಅಲ್ಲಿ ಮಾಡಲು ಅದೇ ಈಗ ಅವು ಗಳು ಎ ಎಂಬುದು ಅವನು ಅಂದರೆ ಅವರಿಗೆ ಇರುವ ವಿಶೇಷ ಮುಂದೆ ಅವುಗಳ ಮುಂತಾದ ಮೂಲ ಬಿ ಮೀ ಒಂದೇ ಇನ್ನೂ ಹೆಚ್ಚಾಗಿ ಮಾಡಿ ಅವರನ್ನು ಇದೇ ಯ ರೀತಿಯಲ್ಲಿ ಜೊತೆ ಅದರಲ್ಲಿ ಮಾಡಿದರು ನಡೆದ ಆಗ ಮತ್ತೆ ಪೂರ್ವ ಆತ ಬಂದ ಯಾವ ಒಟ್ಟು ಇತರೆ ಹಿಂದೆ ಪ್ರಮಾಣದ ಗಳನ್ನು ಕುರಿತು ಯು ಆದ್ದರಿಂದ ಅಲ್ಲದೆ ನಗರದ ಮೇಲಿನ ಏಕೆಂದರೆ ರಷ್ಟು ಎಂಬುದನ್ನು ಬಾರಿ ಎಂದರೆ ಹಿಂದಿನ ಆದರೂ ಆದ ಸಂಬಂಧಿಸಿದ ಮತ್ತೊಂದು ಸಿ ಆತನ ".split(" ")),e.kn.stemmer=function(){return function(e){return"function"==typeof e.update?e.update(function(e){return e}):e}}();var r=e.wordcut;r.init(),e.kn.tokenizer=function(t){if(!arguments.length||null==t||void 0==t)return[];if(Array.isArray(t))return t.map(function(r){return isLunr2?new e.Token(r.toLowerCase()):r.toLowerCase()});var n=t.toString().toLowerCase().replace(/^\s+/,"");return r.cut(n).split("|")},e.Pipeline.registerFunction(e.kn.stemmer,"stemmer-kn"),e.Pipeline.registerFunction(e.kn.stopWordFilter,"stopWordFilter-kn")}});
@@ -1 +0,0 @@
-!function(e,t){"function"==typeof define&&define.amd?define(t):"object"==typeof exports?module.exports=t():t()(e.lunr)}(this,function(){return function(e){e.multiLanguage=function(){for(var t=Array.prototype.slice.call(arguments),i=t.join("-"),r="",n=[],s=[],p=0;p<t.length;++p)"en"==t[p]?(r+="\\w",n.unshift(e.stopWordFilter),n.push(e.stemmer),s.push(e.stemmer)):(r+=e[t[p]].wordCharacters,e[t[p]].stopWordFilter&&n.unshift(e[t[p]].stopWordFilter),e[t[p]].stemmer&&(n.push(e[t[p]].stemmer),s.push(e[t[p]].stemmer)));var o=e.trimmerSupport.generateTrimmer(r);return e.Pipeline.registerFunction(o,"lunr-multi-trimmer-"+i),n.unshift(o),function(){this.pipeline.reset(),this.pipeline.add.apply(this.pipeline,n),this.searchPipeline&&(this.searchPipeline.reset(),this.searchPipeline.add.apply(this.searchPipeline,s))}}}});
@@ -1,18 +0,0 @@
-/*!
- * Lunr languages, `Norwegian` language
- * https://github.com/MihaiValentin/lunr-languages
- *
- * Copyright 2014, Mihai Valentin
- * http://www.mozilla.org/MPL/
- */
-/*!
- * based on
- * Snowball JavaScript Library v0.3
- * http://code.google.com/p/urim/
- * http://snowball.tartarus.org/
- *
- * Copyright 2010, Oleg Mazko
- * http://www.mozilla.org/MPL/
- */
-
-!function(e,r){"function"==typeof define&&define.amd?define(r):"object"==typeof exports?module.exports=r():r()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. Please include / require Lunr before this script.");if(void 0===e.stemmerSupport)throw new Error("Lunr stemmer support is not present. Please include / require Lunr stemmer support before this script.");e.no=function(){this.pipeline.reset(),this.pipeline.add(e.no.trimmer,e.no.stopWordFilter,e.no.stemmer),this.searchPipeline&&(this.searchPipeline.reset(),this.searchPipeline.add(e.no.stemmer))},e.no.wordCharacters="A-Za-zªºÀ-ÖØ-öø-ʸˠ-ˤᴀ-ᴥᴬ-ᵜᵢ-ᵥᵫ-ᵷᵹ-ᶾḀ-ỿⁱⁿₐ-ₜKÅℲⅎⅠ-ↈⱠ-ⱿꜢ-ꞇꞋ-ꞭꞰ-ꞷꟷ-ꟿꬰ-ꭚꭜ-ꭤﬀ-ﬆＡ-Ｚａ-ｚ",e.no.trimmer=e.trimmerSupport.generateTrimmer(e.no.wordCharacters),e.Pipeline.registerFunction(e.no.trimmer,"trimmer-no"),e.no.stemmer=function(){var r=e.stemmerSupport.Among,n=e.stemmerSupport.SnowballProgram,i=new function(){function e(){var e,r=w.cursor+3;if(a=w.limit,0<=r||r<=w.limit){for(s=r;;){if(e=w.cursor,w.in_grouping(d,97,248)){w.cursor=e;break}if(e>=w.limit)return;w.cursor=e+1}for(;!w.out_grouping(d,97,248);){if(w.cursor>=w.limit)return;w.cursor++}a=w.cursor,a<s&&(a=s)}}function i(){var e,r,n;if(w.cursor>=a&&(r=w.limit_backward,w.limit_backward=a,w.ket=w.cursor,e=w.find_among_b(m,29),w.limit_backward=r,e))switch(w.bra=w.cursor,e){case 1:w.slice_del();break;case 2:n=w.limit-w.cursor,w.in_grouping_b(c,98,122)?w.slice_del():(w.cursor=w.limit-n,w.eq_s_b(1,"k")&&w.out_grouping_b(d,97,248)&&w.slice_del());break;case 3:w.slice_from("er")}}function t(){var e,r=w.limit-w.cursor;w.cursor>=a&&(e=w.limit_backward,w.limit_backward=a,w.ket=w.cursor,w.find_among_b(u,2)?(w.bra=w.cursor,w.limit_backward=e,w.cursor=w.limit-r,w.cursor>w.limit_backward&&(w.cursor--,w.bra=w.cursor,w.slice_del())):w.limit_backward=e)}function o(){var e,r;w.cursor>=a&&(r=w.limit_backward,w.limit_backward=a,w.ket=w.cursor,e=w.find_among_b(l,11),e?(w.bra=w.cursor,w.limit_backward=r,1==e&&w.slice_del()):w.limit_backward=r)}var s,a,m=[new r("a",-1,1),new r("e",-1,1),new r("ede",1,1),new r("ande",1,1),new r("ende",1,1),new r("ane",1,1),new r("ene",1,1),new r("hetene",6,1),new r("erte",1,3),new r("en",-1,1),new r("heten",9,1),new r("ar",-1,1),new r("er",-1,1),new r("heter",12,1),new r("s",-1,2),new r("as",14,1),new r("es",14,1),new r("edes",16,1),new r("endes",16,1),new r("enes",16,1),new r("hetenes",19,1),new r("ens",14,1),new r("hetens",21,1),new r("ers",14,1),new r("ets",14,1),new r("et",-1,1),new r("het",25,1),new r("ert",-1,3),new r("ast",-1,1)],u=[new r("dt",-1,-1),new r("vt",-1,-1)],l=[new r("leg",-1,1),new r("eleg",0,1),new r("ig",-1,1),new r("eig",2,1),new r("lig",2,1),new r("elig",4,1),new r("els",-1,1),new r("lov",-1,1),new r("elov",7,1),new r("slov",7,1),new r("hetslov",9,1)],d=[17,65,16,1,0,0,0,0,0,0,0,0,0,0,0,0,48,0,128],c=[119,125,149,1],w=new n;this.setCurrent=function(e){w.setCurrent(e)},this.getCurrent=function(){return w.getCurrent()},this.stem=function(){var r=w.cursor;return e(),w.limit_backward=r,w.cursor=w.limit,i(),w.cursor=w.limit,t(),w.cursor=w.limit,o(),!0}};return function(e){return"function"==typeof e.update?e.update(function(e){return i.setCurrent(e),i.stem(),i.getCurrent()}):(i.setCurrent(e),i.stem(),i.getCurrent())}}(),e.Pipeline.registerFunction(e.no.stemmer,"stemmer-no"),e.no.stopWordFilter=e.generateStopWordFilter("alle at av bare begge ble blei bli blir blitt både båe da de deg dei deim deira deires dem den denne der dere deres det dette di din disse ditt du dykk dykkar då eg ein eit eitt eller elles en enn er et ett etter for fordi fra før ha hadde han hans har hennar henne hennes her hjå ho hoe honom hoss hossen hun hva hvem hver hvilke hvilken hvis hvor hvordan hvorfor i ikke ikkje ikkje ingen ingi inkje inn inni ja jeg kan kom korleis korso kun kunne kva kvar kvarhelst kven kvi kvifor man mange me med medan meg meget mellom men mi min mine mitt mot mykje ned no noe noen noka noko nokon nokor nokre nå når og også om opp oss over på samme seg selv si si sia sidan siden sin sine sitt sjøl skal skulle slik so som som somme somt så sånn til um upp ut uten var vart varte ved vere verte vi vil ville vore vors vort vår være være vært å".split(" ")),e.Pipeline.registerFunction(e.no.stopWordFilter,"stopWordFilter-no")}});
@@ -1 +0,0 @@
-!function(e,r){"function"==typeof define&&define.amd?define(r):"object"==typeof exports?module.exports=r():r()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. Please include / require Lunr before this script.");if(void 0===e.stemmerSupport)throw new Error("Lunr stemmer support is not present. Please include / require Lunr stemmer support before this script.");e.sa=function(){this.pipeline.reset(),this.pipeline.add(e.sa.trimmer,e.sa.stopWordFilter,e.sa.stemmer),this.searchPipeline&&(this.searchPipeline.reset(),this.searchPipeline.add(e.sa.stemmer))},e.sa.wordCharacters="ऀ-ःऄ-एऐ-टठ-यर-िी-ॏॐ-य़ॠ-९॰-ॿ꣠-꣱ꣲ-ꣷ꣸-ꣻ꣼-ꣽꣾ-ꣿᆰ0-ᆰ9",e.sa.trimmer=e.trimmerSupport.generateTrimmer(e.sa.wordCharacters),e.Pipeline.registerFunction(e.sa.trimmer,"trimmer-sa"),e.sa.stopWordFilter=e.generateStopWordFilter('तथा अयम्‌ एकम्‌ इत्यस्मिन्‌ तथा तत्‌ वा अयम्‌ इत्यस्य ते आहूत उपरि तेषाम्‌  किन्तु तेषाम्‌ तदा इत्यनेन अधिकः इत्यस्य तत्‌ केचन बहवः द्वि तथा महत्वपूर्णः अयम्‌ अस्य  विषये अयं अस्ति तत्‌ प्रथमः विषये इत्युपरि इत्युपरि इतर अधिकतमः अधिकः अपि सामान्यतया ठ इतरेतर नूतनम्‌ द  न्यूनम्‌ कश्चित्‌ वा विशालः द  सः अस्ति तदनुसारम् तत्र अस्ति केवलम्‌ अपि अत्र सर्वे विविधाः तत्‌ बहवः यतः इदानीम्‌ द  दक्षिण इत्यस्मै तस्य उपरि नथ अतीव कार्यम्‌ सर्वे एकैकम्‌ इत्यादि। एते सन्ति  उत इत्थम्‌ मध्ये एतदर्थं . स कस्य प्रथमः श्री. करोति अस्मिन् प्रकारः निर्मिता कालः तत्र कर्तुं  समान अधुना ते सन्ति स एकः अस्ति सः अर्थात् तेषां कृते . स्थितम्  विशेषः अग्रिम तेषाम्‌ समान स्रोतः ख म समान इदानीमपि अधिकतया करोतु ते समान इत्यस्य वीथी सह यस्मिन्  कृतवान्‌ धृतः तदा पुनः पूर्वं सः आगतः किम्‌ कुल इतर पुरा  मात्रा स विषये उ अतएव अपि नगरस्य  उपरि यतः प्रतिशतं  कतरः कालः साधनानि भूत तथापि जात सम्बन्धि अन्यत्‌ ग अतः अस्माकं स्वकीयाः अस्माकं इदानीं अन्तः इत्यादयः भवन्तः इत्यादयः एते एताः तस्य अस्य इदम् एते तेषां तेषां तेषां तान् तेषां तेषां तेषां समानः सः एकः च तादृशाः बहवः अन्ये च वदन्ति यत् कियत् कस्मै  कस्मै  यस्मै  यस्मै  यस्मै  यस्मै न अतिनीचः किन्तु प्रथमं सम्पूर्णतया  ततः चिरकालानन्तरं पुस्तकं सम्पूर्णतया अन्तः  किन्तु अत्र वा इह इव श्रद्धाय अवशिष्यते  परन्तु अन्ये वर्गाः सन्ति ते सन्ति शक्नुवन्ति सर्वे मिलित्वा सर्वे एकत्र"'.split(" ")),e.sa.stemmer=function(){return function(e){return"function"==typeof e.update?e.update(function(e){return e}):e}}();var r=e.wordcut;r.init(),e.sa.tokenizer=function(t){if(!arguments.length||null==t||void 0==t)return[];if(Array.isArray(t))return t.map(function(r){return isLunr2?new e.Token(r.toLowerCase()):r.toLowerCase()});var i=t.toString().toLowerCase().replace(/^\s+/,"");return r.cut(i).split("|")},e.Pipeline.registerFunction(e.sa.stemmer,"stemmer-sa"),e.Pipeline.registerFunction(e.sa.stopWordFilter,"stopWordFilter-sa")}});
@@ -1 +0,0 @@
-!function(r,t){"function"==typeof define&&define.amd?define(t):"object"==typeof exports?module.exports=t():t()(r.lunr)}(this,function(){return function(r){r.stemmerSupport={Among:function(r,t,i,s){if(this.toCharArray=function(r){for(var t=r.length,i=new Array(t),s=0;s<t;s++)i[s]=r.charCodeAt(s);return i},!r&&""!=r||!t&&0!=t||!i)throw"Bad Among initialisation: s:"+r+", substring_i: "+t+", result: "+i;this.s_size=r.length,this.s=this.toCharArray(r),this.substring_i=t,this.result=i,this.method=s},SnowballProgram:function(){var r;return{bra:0,ket:0,limit:0,cursor:0,limit_backward:0,setCurrent:function(t){r=t,this.cursor=0,this.limit=t.length,this.limit_backward=0,this.bra=this.cursor,this.ket=this.limit},getCurrent:function(){var t=r;return r=null,t},in_grouping:function(t,i,s){if(this.cursor<this.limit){var e=r.charCodeAt(this.cursor);if(e<=s&&e>=i&&(e-=i,t[e>>3]&1<<(7&e)))return this.cursor++,!0}return!1},in_grouping_b:function(t,i,s){if(this.cursor>this.limit_backward){var e=r.charCodeAt(this.cursor-1);if(e<=s&&e>=i&&(e-=i,t[e>>3]&1<<(7&e)))return this.cursor--,!0}return!1},out_grouping:function(t,i,s){if(this.cursor<this.limit){var e=r.charCodeAt(this.cursor);if(e>s||e<i)return this.cursor++,!0;if(e-=i,!(t[e>>3]&1<<(7&e)))return this.cursor++,!0}return!1},out_grouping_b:function(t,i,s){if(this.cursor>this.limit_backward){var e=r.charCodeAt(this.cursor-1);if(e>s||e<i)return this.cursor--,!0;if(e-=i,!(t[e>>3]&1<<(7&e)))return this.cursor--,!0}return!1},eq_s:function(t,i){if(this.limit-this.cursor<t)return!1;for(var s=0;s<t;s++)if(r.charCodeAt(this.cursor+s)!=i.charCodeAt(s))return!1;return this.cursor+=t,!0},eq_s_b:function(t,i){if(this.cursor-this.limit_backward<t)return!1;for(var s=0;s<t;s++)if(r.charCodeAt(this.cursor-t+s)!=i.charCodeAt(s))return!1;return this.cursor-=t,!0},find_among:function(t,i){for(var s=0,e=i,n=this.cursor,u=this.limit,o=0,h=0,c=!1;;){for(var a=s+(e-s>>1),f=0,l=o<h?o:h,_=t[a],m=l;m<_.s_size;m++){if(n+l==u){f=-1;break}if(f=r.charCodeAt(n+l)-_.s[m])break;l++}if(f<0?(e=a,h=l):(s=a,o=l),e-s<=1){if(s>0||e==s||c)break;c=!0}}for(;;){var _=t[s];if(o>=_.s_size){if(this.cursor=n+_.s_size,!_.method)return _.result;var b=_.method();if(this.cursor=n+_.s_size,b)return _.result}if((s=_.substring_i)<0)return 0}},find_among_b:function(t,i){for(var s=0,e=i,n=this.cursor,u=this.limit_backward,o=0,h=0,c=!1;;){for(var a=s+(e-s>>1),f=0,l=o<h?o:h,_=t[a],m=_.s_size-1-l;m>=0;m--){if(n-l==u){f=-1;break}if(f=r.charCodeAt(n-1-l)-_.s[m])break;l++}if(f<0?(e=a,h=l):(s=a,o=l),e-s<=1){if(s>0||e==s||c)break;c=!0}}for(;;){var _=t[s];if(o>=_.s_size){if(this.cursor=n-_.s_size,!_.method)return _.result;var b=_.method();if(this.cursor=n-_.s_size,b)return _.result}if((s=_.substring_i)<0)return 0}},replace_s:function(t,i,s){var e=s.length-(i-t),n=r.substring(0,t),u=r.substring(i);return r=n+s+u,this.limit+=e,this.cursor>=i?this.cursor+=e:this.cursor>t&&(this.cursor=t),e},slice_check:function(){if(this.bra<0||this.bra>this.ket||this.ket>this.limit||this.limit>r.length)throw"faulty slice operation"},slice_from:function(r){this.slice_check(),this.replace_s(this.bra,this.ket,r)},slice_del:function(){this.slice_from("")},insert:function(r,t,i){var s=this.replace_s(r,t,i);r<=this.bra&&(this.bra+=s),r<=this.ket&&(this.ket+=s)},slice_to:function(){return this.slice_check(),r.substring(this.bra,this.ket)},eq_v_b:function(r){return this.eq_s_b(r.length,r)}}}},r.trimmerSupport={generateTrimmer:function(r){var t=new RegExp("^[^"+r+"]+"),i=new RegExp("[^"+r+"]+$");return function(r){return"function"==typeof r.update?r.update(function(r){return r.replace(t,"").replace(i,"")}):r.replace(t,"").replace(i,"")}}}}});
@@ -1,18 +0,0 @@
-/*!
- * Lunr languages, `Swedish` language
- * https://github.com/MihaiValentin/lunr-languages
- *
- * Copyright 2014, Mihai Valentin
- * http://www.mozilla.org/MPL/
- */
-/*!
- * based on
- * Snowball JavaScript Library v0.3
- * http://code.google.com/p/urim/
- * http://snowball.tartarus.org/
- *
- * Copyright 2010, Oleg Mazko
- * http://www.mozilla.org/MPL/
- */
-
-!function(e,r){"function"==typeof define&&define.amd?define(r):"object"==typeof exports?module.exports=r():r()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. Please include / require Lunr before this script.");if(void 0===e.stemmerSupport)throw new Error("Lunr stemmer support is not present. Please include / require Lunr stemmer support before this script.");e.sv=function(){this.pipeline.reset(),this.pipeline.add(e.sv.trimmer,e.sv.stopWordFilter,e.sv.stemmer),this.searchPipeline&&(this.searchPipeline.reset(),this.searchPipeline.add(e.sv.stemmer))},e.sv.wordCharacters="A-Za-zªºÀ-ÖØ-öø-ʸˠ-ˤᴀ-ᴥᴬ-ᵜᵢ-ᵥᵫ-ᵷᵹ-ᶾḀ-ỿⁱⁿₐ-ₜKÅℲⅎⅠ-ↈⱠ-ⱿꜢ-ꞇꞋ-ꞭꞰ-ꞷꟷ-ꟿꬰ-ꭚꭜ-ꭤﬀ-ﬆＡ-Ｚａ-ｚ",e.sv.trimmer=e.trimmerSupport.generateTrimmer(e.sv.wordCharacters),e.Pipeline.registerFunction(e.sv.trimmer,"trimmer-sv"),e.sv.stemmer=function(){var r=e.stemmerSupport.Among,n=e.stemmerSupport.SnowballProgram,t=new function(){function e(){var e,r=w.cursor+3;if(o=w.limit,0<=r||r<=w.limit){for(a=r;;){if(e=w.cursor,w.in_grouping(l,97,246)){w.cursor=e;break}if(w.cursor=e,w.cursor>=w.limit)return;w.cursor++}for(;!w.out_grouping(l,97,246);){if(w.cursor>=w.limit)return;w.cursor++}o=w.cursor,o<a&&(o=a)}}function t(){var e,r=w.limit_backward;if(w.cursor>=o&&(w.limit_backward=o,w.cursor=w.limit,w.ket=w.cursor,e=w.find_among_b(u,37),w.limit_backward=r,e))switch(w.bra=w.cursor,e){case 1:w.slice_del();break;case 2:w.in_grouping_b(d,98,121)&&w.slice_del()}}function i(){var e=w.limit_backward;w.cursor>=o&&(w.limit_backward=o,w.cursor=w.limit,w.find_among_b(c,7)&&(w.cursor=w.limit,w.ket=w.cursor,w.cursor>w.limit_backward&&(w.bra=--w.cursor,w.slice_del())),w.limit_backward=e)}function s(){var e,r;if(w.cursor>=o){if(r=w.limit_backward,w.limit_backward=o,w.cursor=w.limit,w.ket=w.cursor,e=w.find_among_b(m,5))switch(w.bra=w.cursor,e){case 1:w.slice_del();break;case 2:w.slice_from("lös");break;case 3:w.slice_from("full")}w.limit_backward=r}}var a,o,u=[new r("a",-1,1),new r("arna",0,1),new r("erna",0,1),new r("heterna",2,1),new r("orna",0,1),new r("ad",-1,1),new r("e",-1,1),new r("ade",6,1),new r("ande",6,1),new r("arne",6,1),new r("are",6,1),new r("aste",6,1),new r("en",-1,1),new r("anden",12,1),new r("aren",12,1),new r("heten",12,1),new r("ern",-1,1),new r("ar",-1,1),new r("er",-1,1),new r("heter",18,1),new r("or",-1,1),new r("s",-1,2),new r("as",21,1),new r("arnas",22,1),new r("ernas",22,1),new r("ornas",22,1),new r("es",21,1),new r("ades",26,1),new r("andes",26,1),new r("ens",21,1),new r("arens",29,1),new r("hetens",29,1),new r("erns",21,1),new r("at",-1,1),new r("andet",-1,1),new r("het",-1,1),new r("ast",-1,1)],c=[new r("dd",-1,-1),new r("gd",-1,-1),new r("nn",-1,-1),new r("dt",-1,-1),new r("gt",-1,-1),new r("kt",-1,-1),new r("tt",-1,-1)],m=[new r("ig",-1,1),new r("lig",0,1),new r("els",-1,1),new r("fullt",-1,3),new r("löst",-1,2)],l=[17,65,16,1,0,0,0,0,0,0,0,0,0,0,0,0,24,0,32],d=[119,127,149],w=new n;this.setCurrent=function(e){w.setCurrent(e)},this.getCurrent=function(){return w.getCurrent()},this.stem=function(){var r=w.cursor;return e(),w.limit_backward=r,w.cursor=w.limit,t(),w.cursor=w.limit,i(),w.cursor=w.limit,s(),!0}};return function(e){return"function"==typeof e.update?e.update(function(e){return t.setCurrent(e),t.stem(),t.getCurrent()}):(t.setCurrent(e),t.stem(),t.getCurrent())}}(),e.Pipeline.registerFunction(e.sv.stemmer,"stemmer-sv"),e.sv.stopWordFilter=e.generateStopWordFilter("alla allt att av blev bli blir blivit de dem den denna deras dess dessa det detta dig din dina ditt du där då efter ej eller en er era ert ett från för ha hade han hans har henne hennes hon honom hur här i icke ingen inom inte jag ju kan kunde man med mellan men mig min mina mitt mot mycket ni nu när någon något några och om oss på samma sedan sig sin sina sitta själv skulle som så sådan sådana sådant till under upp ut utan vad var vara varför varit varje vars vart vem vi vid vilka vilkas vilken vilket vår våra vårt än är åt över".split(" ")),e.Pipeline.registerFunction(e.sv.stopWordFilter,"stopWordFilter-sv")}});
@@ -1 +0,0 @@
-!function(e,t){"function"==typeof define&&define.amd?define(t):"object"==typeof exports?module.exports=t():t()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. Please include / require Lunr before this script.");if(void 0===e.stemmerSupport)throw new Error("Lunr stemmer support is not present. Please include / require Lunr stemmer support before this script.");e.ta=function(){this.pipeline.reset(),this.pipeline.add(e.ta.trimmer,e.ta.stopWordFilter,e.ta.stemmer),this.searchPipeline&&(this.searchPipeline.reset(),this.searchPipeline.add(e.ta.stemmer))},e.ta.wordCharacters="஀-உஊ-ஏஐ-ஙச-ட஠-னப-யர-ஹ஺-ிீ-௉ொ-௏ௐ-௙௚-௟௠-௩௪-௯௰-௹௺-௿a-zA-Zａ-ｚＡ-Ｚ0-9０-９",e.ta.trimmer=e.trimmerSupport.generateTrimmer(e.ta.wordCharacters),e.Pipeline.registerFunction(e.ta.trimmer,"trimmer-ta"),e.ta.stopWordFilter=e.generateStopWordFilter("அங்கு அங்கே அது அதை அந்த அவர் அவர்கள் அவள் அவன் அவை ஆக ஆகவே ஆகையால் ஆதலால் ஆதலினால் ஆனாலும் ஆனால் இங்கு இங்கே இது இதை இந்த இப்படி இவர் இவர்கள் இவள் இவன் இவை இவ்வளவு உனக்கு உனது உன் உன்னால் எங்கு எங்கே எது எதை எந்த எப்படி எவர் எவர்கள் எவள் எவன் எவை எவ்வளவு எனக்கு எனது எனவே என் என்ன என்னால் ஏது ஏன் தனது தன்னால் தானே தான் நாங்கள் நாம் நான் நீ நீங்கள்".split(" ")),e.ta.stemmer=function(){return function(e){return"function"==typeof e.update?e.update(function(e){return e}):e}}();var t=e.wordcut;t.init(),e.ta.tokenizer=function(r){if(!arguments.length||null==r||void 0==r)return[];if(Array.isArray(r))return r.map(function(t){return isLunr2?new e.Token(t.toLowerCase()):t.toLowerCase()});var i=r.toString().toLowerCase().replace(/^\s+/,"");return t.cut(i).split("|")},e.Pipeline.registerFunction(e.ta.stemmer,"stemmer-ta"),e.Pipeline.registerFunction(e.ta.stopWordFilter,"stopWordFilter-ta")}});
@@ -1 +0,0 @@
-!function(e,t){"function"==typeof define&&define.amd?define(t):"object"==typeof exports?module.exports=t():t()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. Please include / require Lunr before this script.");if(void 0===e.stemmerSupport)throw new Error("Lunr stemmer support is not present. Please include / require Lunr stemmer support before this script.");e.te=function(){this.pipeline.reset(),this.pipeline.add(e.te.trimmer,e.te.stopWordFilter,e.te.stemmer),this.searchPipeline&&(this.searchPipeline.reset(),this.searchPipeline.add(e.te.stemmer))},e.te.wordCharacters="ఀ-ఄఅ-ఔక-హా-ౌౕ-ౖౘ-ౚౠ-ౡౢ-ౣ౦-౯౸-౿఼ఽ్ౝ౷౤౥",e.te.trimmer=e.trimmerSupport.generateTrimmer(e.te.wordCharacters),e.Pipeline.registerFunction(e.te.trimmer,"trimmer-te"),e.te.stopWordFilter=e.generateStopWordFilter("అందరూ అందుబాటులో అడగండి అడగడం అడ్డంగా అనుగుణంగా అనుమతించు అనుమతిస్తుంది అయితే ఇప్పటికే ఉన్నారు ఎక్కడైనా ఎప్పుడు ఎవరైనా ఎవరో ఏ ఏదైనా ఏమైనప్పటికి ఒక ఒకరు కనిపిస్తాయి కాదు కూడా గా గురించి చుట్టూ చేయగలిగింది తగిన తర్వాత దాదాపు దూరంగా నిజంగా పై ప్రకారం ప్రక్కన మధ్య మరియు మరొక మళ్ళీ మాత్రమే మెచ్చుకో వద్ద వెంట వేరుగా వ్యతిరేకంగా సంబంధం".split(" ")),e.te.stemmer=function(){return function(e){return"function"==typeof e.update?e.update(function(e){return e}):e}}();var t=e.wordcut;t.init(),e.te.tokenizer=function(r){if(!arguments.length||null==r||void 0==r)return[];if(Array.isArray(r))return r.map(function(t){return isLunr2?new e.Token(t.toLowerCase()):t.toLowerCase()});var i=r.toString().toLowerCase().replace(/^\s+/,"");return t.cut(i).split("|")},e.Pipeline.registerFunction(e.te.stemmer,"stemmer-te"),e.Pipeline.registerFunction(e.te.stopWordFilter,"stopWordFilter-te")}});
@@ -1 +0,0 @@
-!function(e,r){"function"==typeof define&&define.amd?define(r):"object"==typeof exports?module.exports=r():r()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. Please include / require Lunr before this script.");if(void 0===e.stemmerSupport)throw new Error("Lunr stemmer support is not present. Please include / require Lunr stemmer support before this script.");var r="2"==e.version[0];e.th=function(){this.pipeline.reset(),this.pipeline.add(e.th.trimmer),r?this.tokenizer=e.th.tokenizer:(e.tokenizer&&(e.tokenizer=e.th.tokenizer),this.tokenizerFn&&(this.tokenizerFn=e.th.tokenizer))},e.th.wordCharacters="[฀-๿]",e.th.trimmer=e.trimmerSupport.generateTrimmer(e.th.wordCharacters),e.Pipeline.registerFunction(e.th.trimmer,"trimmer-th");var t=e.wordcut;t.init(),e.th.tokenizer=function(i){if(!arguments.length||null==i||void 0==i)return[];if(Array.isArray(i))return i.map(function(t){return r?new e.Token(t):t});var n=i.toString().replace(/^\s+/,"");return t.cut(n).split("|")}}});
@@ -1 +0,0 @@
-!function(e,r){"function"==typeof define&&define.amd?define(r):"object"==typeof exports?module.exports=r():r()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. Please include / require Lunr before this script.");if(void 0===e.stemmerSupport)throw new Error("Lunr stemmer support is not present. Please include / require Lunr stemmer support before this script.");e.vi=function(){this.pipeline.reset(),this.pipeline.add(e.vi.stopWordFilter,e.vi.trimmer)},e.vi.wordCharacters="[A-Za-ẓ̀͐́͑̉̃̓ÂâÊêÔôĂ-ăĐ-đƠ-ơƯ-ư]",e.vi.trimmer=e.trimmerSupport.generateTrimmer(e.vi.wordCharacters),e.Pipeline.registerFunction(e.vi.trimmer,"trimmer-vi"),e.vi.stopWordFilter=e.generateStopWordFilter("là cái nhưng mà".split(" "))}});
@@ -1 +0,0 @@
-!function(e,r){"function"==typeof define&&define.amd?define(r):"object"==typeof exports?module.exports=r(require("@node-rs/jieba")):r()(e.lunr)}(this,function(e){return function(r,t){if(void 0===r)throw new Error("Lunr is not present. Please include / require Lunr before this script.");if(void 0===r.stemmerSupport)throw new Error("Lunr stemmer support is not present. Please include / require Lunr stemmer support before this script.");var i="2"==r.version[0];r.zh=function(){this.pipeline.reset(),this.pipeline.add(r.zh.trimmer,r.zh.stopWordFilter,r.zh.stemmer),i?this.tokenizer=r.zh.tokenizer:(r.tokenizer&&(r.tokenizer=r.zh.tokenizer),this.tokenizerFn&&(this.tokenizerFn=r.zh.tokenizer))},r.zh.tokenizer=function(n){if(!arguments.length||null==n||void 0==n)return[];if(Array.isArray(n))return n.map(function(e){return i?new r.Token(e.toLowerCase()):e.toLowerCase()});t&&e.load(t);var o=n.toString().trim().toLowerCase(),s=[];e.cut(o,!0).forEach(function(e){s=s.concat(e.split(" "))}),s=s.filter(function(e){return!!e});var u=0;return s.map(function(e,t){if(i){var n=o.indexOf(e,u),s={};return s.position=[n,e.length],s.index=t,u=n,new r.Token(e,s)}return e})},r.zh.wordCharacters="\\w一-龥",r.zh.trimmer=r.trimmerSupport.generateTrimmer(r.zh.wordCharacters),r.Pipeline.registerFunction(r.zh.trimmer,"trimmer-zh"),r.zh.stemmer=function(){return function(e){return e}}(),r.Pipeline.registerFunction(r.zh.stemmer,"stemmer-zh"),r.zh.stopWordFilter=r.generateStopWordFilter("的 一 不 在 人 有 是 为 為 以 于 於 上 他 而 后 後 之 来 來 及 了 因 下 可 到 由 这 這 与 與 也 此 但 并 並 个 個 其 已 无 無 小 我 们 們 起 最 再 今 去 好 只 又 或 很 亦 某 把 那 你 乃 它 吧 被 比 别 趁 当 當 从 從 得 打 凡 儿 兒 尔 爾 该 該 各 给 給 跟 和 何 还 還 即 几 幾 既 看 据 據 距 靠 啦 另 么 麽 每 嘛 拿 哪 您 凭 憑 且 却 卻 让 讓 仍 啥 如 若 使 谁 誰 虽 雖 随 隨 同 所 她 哇 嗡 往 些 向 沿 哟 喲 用 咱 则 則 怎 曾 至 致 着 著 诸 諸 自".split(" ")),r.Pipeline.registerFunction(r.zh.stopWordFilter,"stopWordFilter-zh")}});
@@ -1,206 +0,0 @@
-/**
- * export the module via AMD, CommonJS or as a browser global
- * Export code from https://github.com/umdjs/umd/blob/master/returnExports.js
- */
-;(function (root, factory) {
-    if (typeof define === 'function' && define.amd) {
-        // AMD. Register as an anonymous module.
-        define(factory)
-    } else if (typeof exports === 'object') {
-        /**
-         * Node. Does not work with strict CommonJS, but
-         * only CommonJS-like environments that support module.exports,
-         * like Node.
-         */
-        module.exports = factory()
-    } else {
-        // Browser globals (root is window)
-        factory()(root.lunr);
-    }
-}(this, function () {
-    /**
-     * Just return a value to define the module export.
-     * This example returns an object, but the module
-     * can return a function as the exported value.
-     */
-
-    return function(lunr) {
-        // TinySegmenter 0.1 -- Super compact Japanese tokenizer in Javascript
-        // (c) 2008 Taku Kudo <taku@chasen.org>
-        // TinySegmenter is freely distributable under the terms of a new BSD licence.
-        // For details, see http://chasen.org/~taku/software/TinySegmenter/LICENCE.txt
-
-        function TinySegmenter() {
-          var patterns = {
-            "[一二三四五六七八九十百千万億兆]":"M",
-            "[一-龠々〆ヵヶ]":"H",
-            "[ぁ-ん]":"I",
-            "[ァ-ヴーｱ-ﾝﾞｰ]":"K",
-            "[a-zA-Zａ-ｚＡ-Ｚ]":"A",
-            "[0-9０-９]":"N"
-          }
-          this.chartype_ = [];
-          for (var i in patterns) {
-            var regexp = new RegExp(i);
-            this.chartype_.push([regexp, patterns[i]]);
-          }
-
-          this.BIAS__ = -332
-          this.BC1__ = {"HH":6,"II":2461,"KH":406,"OH":-1378};
-          this.BC2__ = {"AA":-3267,"AI":2744,"AN":-878,"HH":-4070,"HM":-1711,"HN":4012,"HO":3761,"IA":1327,"IH":-1184,"II":-1332,"IK":1721,"IO":5492,"KI":3831,"KK":-8741,"MH":-3132,"MK":3334,"OO":-2920};
-          this.BC3__ = {"HH":996,"HI":626,"HK":-721,"HN":-1307,"HO":-836,"IH":-301,"KK":2762,"MK":1079,"MM":4034,"OA":-1652,"OH":266};
-          this.BP1__ = {"BB":295,"OB":304,"OO":-125,"UB":352};
-          this.BP2__ = {"BO":60,"OO":-1762};
-          this.BQ1__ = {"BHH":1150,"BHM":1521,"BII":-1158,"BIM":886,"BMH":1208,"BNH":449,"BOH":-91,"BOO":-2597,"OHI":451,"OIH":-296,"OKA":1851,"OKH":-1020,"OKK":904,"OOO":2965};
-          this.BQ2__ = {"BHH":118,"BHI":-1159,"BHM":466,"BIH":-919,"BKK":-1720,"BKO":864,"OHH":-1139,"OHM":-181,"OIH":153,"UHI":-1146};
-          this.BQ3__ = {"BHH":-792,"BHI":2664,"BII":-299,"BKI":419,"BMH":937,"BMM":8335,"BNN":998,"BOH":775,"OHH":2174,"OHM":439,"OII":280,"OKH":1798,"OKI":-793,"OKO":-2242,"OMH":-2402,"OOO":11699};
-          this.BQ4__ = {"BHH":-3895,"BIH":3761,"BII":-4654,"BIK":1348,"BKK":-1806,"BMI":-3385,"BOO":-12396,"OAH":926,"OHH":266,"OHK":-2036,"ONN":-973};
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-            score += this.ts_(this.UP3__[p3]);
-            score += this.ts_(this.BP1__[p1 + p2]);
-            score += this.ts_(this.BP2__[p2 + p3]);
-            score += this.ts_(this.UW1__[w1]);
-            score += this.ts_(this.UW2__[w2]);
-            score += this.ts_(this.UW3__[w3]);
-            score += this.ts_(this.UW4__[w4]);
-            score += this.ts_(this.UW5__[w5]);
-            score += this.ts_(this.UW6__[w6]);
-            score += this.ts_(this.BW1__[w2 + w3]);
-            score += this.ts_(this.BW2__[w3 + w4]);
-            score += this.ts_(this.BW3__[w4 + w5]);
-            score += this.ts_(this.TW1__[w1 + w2 + w3]);
-            score += this.ts_(this.TW2__[w2 + w3 + w4]);
-            score += this.ts_(this.TW3__[w3 + w4 + w5]);
-            score += this.ts_(this.TW4__[w4 + w5 + w6]);
-            score += this.ts_(this.UC1__[c1]);
-            score += this.ts_(this.UC2__[c2]);
-            score += this.ts_(this.UC3__[c3]);
-            score += this.ts_(this.UC4__[c4]);
-            score += this.ts_(this.UC5__[c5]);
-            score += this.ts_(this.UC6__[c6]);
-            score += this.ts_(this.BC1__[c2 + c3]);
-            score += this.ts_(this.BC2__[c3 + c4]);
-            score += this.ts_(this.BC3__[c4 + c5]);
-            score += this.ts_(this.TC1__[c1 + c2 + c3]);
-            score += this.ts_(this.TC2__[c2 + c3 + c4]);
-            score += this.ts_(this.TC3__[c3 + c4 + c5]);
-            score += this.ts_(this.TC4__[c4 + c5 + c6]);
-        //  score += this.ts_(this.TC5__[c4 + c5 + c6]);    
-            score += this.ts_(this.UQ1__[p1 + c1]);
-            score += this.ts_(this.UQ2__[p2 + c2]);
-            score += this.ts_(this.UQ3__[p3 + c3]);
-            score += this.ts_(this.BQ1__[p2 + c2 + c3]);
-            score += this.ts_(this.BQ2__[p2 + c3 + c4]);
-            score += this.ts_(this.BQ3__[p3 + c2 + c3]);
-            score += this.ts_(this.BQ4__[p3 + c3 + c4]);
-            score += this.ts_(this.TQ1__[p2 + c1 + c2 + c3]);
-            score += this.ts_(this.TQ2__[p2 + c2 + c3 + c4]);
-            score += this.ts_(this.TQ3__[p3 + c1 + c2 + c3]);
-            score += this.ts_(this.TQ4__[p3 + c2 + c3 + c4]);
-            var p = "O";
-            if (score > 0) {
-              result.push(word);
-              word = "";
-              p = "B";
-            }
-            p1 = p2;
-            p2 = p3;
-            p3 = p;
-            word += seg[i];
-          }
-          result.push(word);
-
-          return result;
-        }
-
-        lunr.TinySegmenter = TinySegmenter;
-    };
-
-}));
@@ -1 +0,0 @@
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@@ -0,0 +1,38 @@
+/* Linker script to configure memory regions. */
+
+SEARCH_DIR(.)
+GROUP(-lgcc -lc -lnosys)
+
+MEMORY
+{
+  FLASH (rx)     : ORIGIN = 0x27000, LENGTH = 0xED000 - 0x27000
+
+  /* SRAM required by Softdevice depend on
+   * - Attribute Table Size (Number of Services and Characteristics)
+   * - Vendor UUID count
+   * - Max ATT MTU
+   * - Concurrent connection peripheral + central + secure links
+   * - Event Len, HVN queue, Write CMD queue
+   */ 
+  RAM (rwx) :  ORIGIN = 0x20006000, LENGTH = 0x20040000 - 0x20006000
+}
+
+SECTIONS
+{
+  . = ALIGN(4);
+  .svc_data :
+  {
+    PROVIDE(__start_svc_data = .);
+    KEEP(*(.svc_data))
+    PROVIDE(__stop_svc_data = .);
+  } > RAM
+  
+  .fs_data :
+  {
+    PROVIDE(__start_fs_data = .);
+    KEEP(*(.fs_data))
+    PROVIDE(__stop_fs_data = .);
+  } > RAM
+} INSERT AFTER .data;
+
+INCLUDE "nrf52_common.ld"
@@ -0,0 +1,45 @@
+{
+    "build": {
+        "arduino": {
+            "ldscript": "esp32s3_out.ld",
+            "partitions": "default.csv",
+            "memory_type": "qio_qspi"
+        },
+        "core": "esp32",
+        "extra_flags": [
+            "-DARDUINO_LILYGO_T3_S3_V1_X",
+            "-DBOARD_HAS_PSRAM",
+            "-DARDUINO_USB_CDC_ON_BOOT=1",
+            "-DARDUINO_RUNNING_CORE=1",
+            "-DARDUINO_EVENT_RUNNING_CORE=1",
+            "-DARDUINO_USB_MODE=1"
+        ],
+        "f_cpu": "240000000L",
+        "f_flash": "80000000L",
+        "flash_mode": "qio",
+        "mcu": "esp32s3",
+        "variant": "esp32s3"
+    },
+    "connectivity": [
+        "wifi"
+    ],
+    "debug": {
+        "openocd_target": "esp32s3.cfg"
+    },
+    "frameworks": [
+        "arduino",
+        "espidf"
+    ],
+    "name": "LilyGo T3-S3 Radio",
+    "upload": {
+        "flash_size": "4MB",
+        "maximum_ram_size": 327680,
+        "maximum_size": 4194304,
+        "use_1200bps_touch": true,
+        "wait_for_upload_port": true,
+        "require_upload_port": true,
+        "speed": 460800
+    },
+    "url": "https://www.lilygo.cc",
+    "vendor": "LilyGo"
+}
@@ -0,0 +1,58 @@
+{
+  "build": {
+    "arduino": {
+      "ldscript": "nrf52840_s140_v7.ld"
+    },
+    "core": "nRF5",
+    "cpu": "cortex-m4",
+    "extra_flags": "-DARDUINO_WIO_WM1110 -DNRF52840_XXAA",
+    "f_cpu": "64000000L",
+    "hwids": [
+      ["0x239A", "0x8029"],
+      ["0x239A", "0x0029"],
+      ["0x239A", "0x002A"],
+      ["0x239A", "0x802A"]
+    ],
+    "usb_product": "T1000-E-BOOT",
+    "mcu": "nrf52840",
+    "variant": "Seeed_T1000-E",
+    "bsp": {
+      "name": "adafruit"
+    },
+    "softdevice": {
+      "sd_flags": "-DS140",
+      "sd_name": "s140",
+      "sd_version": "7.3.0",
+      "sd_fwid": "0x0123"
+    },
+    "bootloader": {
+      "settings_addr": "0xFF000"
+    }
+  },
+  "connectivity": ["bluetooth"],
+  "debug": {
+    "jlink_device": "nRF52840_xxAA",
+    "svd_path": "nrf52840.svd"
+  },
+  "frameworks": ["arduino"],
+  "name": "Seeed T1000-E",
+  "upload": {
+    "maximum_ram_size": 248832,
+    "maximum_size": 815104,
+    "speed": 115200,
+    "protocol": "nrfutil",
+    "protocols": [
+      "jlink",
+      "nrfjprog",
+      "nrfutil",
+      "stlink",
+      "cmsis-dap",
+      "blackmagic"
+    ],
+    "use_1200bps_touch": true,
+    "require_upload_port": true,
+    "wait_for_upload_port": true
+  },
+  "url": "https://www.seeedstudio.com/SenseCAP-Card-Tracker-T1000-E-for-Meshtastic-p-5913.html",
+  "vendor": "Seeed Studio"
+}
@@ -1,759 +0,0 @@
-
-<!doctype html>
-<html lang="en" class="no-js">
-  <head>
-    
-      <meta charset="utf-8">
-      <meta name="viewport" content="width=device-width,initial-scale=1">
-      
-        <meta name="description" content="Documentation for the open source MeshCore firmware">
-      
-      
-      
-        <link rel="canonical" href="https://meshcore-dev.github.io/meshcore/docs/">
-      
-      
-        <link rel="prev" href="../companion_protocol/">
-      
-      
-        <link rel="next" href="../faq/">
-      
-      
-        
-      
-      
-      <link rel="icon" href="../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.6.1, mkdocs-material-9.7.7">
-    
-    
-      
-        <title>Local Documentation - MeshCore Docs</title>
-      
-    
-    
-      <link rel="stylesheet" href="../assets/stylesheets/main.ec1eaa64.min.css">
-      
-      
-
-
-    
-    
-      
-    
-    
-      
-        
-        
-        <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
-        <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,300i,400,400i,700,700i%7CRoboto+Mono:400,400i,700,700i&display=fallback">
-        <style>:root{--md-text-font:"Roboto";--md-code-font:"Roboto Mono"}</style>
-      
-    
-    
-      <link rel="stylesheet" href="../_stylesheets/extra.css">
-    
-    <script>__md_scope=new URL("..",location),__md_hash=e=>[...e].reduce(((e,_)=>(e<<5)-e+_.charCodeAt(0)),0),__md_get=(e,_=localStorage,t=__md_scope)=>JSON.parse(_.getItem(t.pathname+"."+e)),__md_set=(e,_,t=localStorage,a=__md_scope)=>{try{t.setItem(a.pathname+"."+e,JSON.stringify(_))}catch(e){}}</script>
-    
-      
-
-    
-    
-  </head>
-  
-  
-    <body dir="ltr">
-  
-    
-    <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
-    <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
-    <label class="md-overlay" for="__drawer"></label>
-    <div data-md-component="skip">
-      
-        
-        <a href="#local-documentation" class="md-skip">
-          Skip to content
-        </a>
-      
-    </div>
-    <div data-md-component="announce">
-      
-    </div>
-    
-    
-      
-
-  
-
-<header class="md-header md-header--shadow" data-md-component="header">
-  <nav class="md-header__inner md-grid" aria-label="Header">
-    <a href=".." title="MeshCore Docs" class="md-header__button md-logo" aria-label="MeshCore Docs" data-md-component="logo">
-      
-  <img src="../_assets/meshcore.svg" alt="logo">
-
-    </a>
-    <label class="md-header__button md-icon" for="__drawer">
-      
-      <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 6h18v2H3zm0 5h18v2H3zm0 5h18v2H3z"/></svg>
-    </label>
-    <div class="md-header__title" data-md-component="header-title">
-      <div class="md-header__ellipsis">
-        <div class="md-header__topic">
-          <span class="md-ellipsis">
-            MeshCore Docs
-          </span>
-        </div>
-        <div class="md-header__topic" data-md-component="header-topic">
-          <span class="md-ellipsis">
-            
-              Local Documentation
-            
-          </span>
-        </div>
-      </div>
-    </div>
-    
-    
-      <script>var palette=__md_get("__palette");if(palette&&palette.color){if("(prefers-color-scheme)"===palette.color.media){var media=matchMedia("(prefers-color-scheme: light)"),input=document.querySelector(media.matches?"[data-md-color-media='(prefers-color-scheme: light)']":"[data-md-color-media='(prefers-color-scheme: dark)']");palette.color.media=input.getAttribute("data-md-color-media"),palette.color.scheme=input.getAttribute("data-md-color-scheme"),palette.color.primary=input.getAttribute("data-md-color-primary"),palette.color.accent=input.getAttribute("data-md-color-accent")}for(var[key,value]of Object.entries(palette.color))document.body.setAttribute("data-md-color-"+key,value)}</script>
-    
-    
-    
-      
-      
-        <label class="md-header__button md-icon" for="__search">
-          
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.52 6.52 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5"/></svg>
-        </label>
-        <div class="md-search" data-md-component="search" role="dialog">
-  <label class="md-search__overlay" for="__search"></label>
-  <div class="md-search__inner" role="search">
-    <form class="md-search__form" name="search">
-      <input type="text" class="md-search__input" name="query" aria-label="Search" placeholder="Search" autocapitalize="off" autocorrect="off" autocomplete="off" spellcheck="false" data-md-component="search-query" required>
-      <label class="md-search__icon md-icon" for="__search">
-        
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.52 6.52 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5"/></svg>
-        
-        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11z"/></svg>
-      </label>
-      <nav class="md-search__options" aria-label="Search">
-        
-        <button type="reset" class="md-search__icon md-icon" title="Clear" aria-label="Clear" tabindex="-1">
-          
-          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M19 6.41 17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12z"/></svg>
-        </button>
-      </nav>
-      
-        <div class="md-search__suggest" data-md-component="search-suggest"></div>
-      
-    </form>
-    <div class="md-search__output">
-      <div class="md-search__scrollwrap" tabindex="0" data-md-scrollfix>
-        <div class="md-search-result" data-md-component="search-result">
-          <div class="md-search-result__meta">
-            Initializing search
-          </div>
-          <ol class="md-search-result__list" role="presentation"></ol>
-        </div>
-      </div>
-    </div>
-  </div>
-</div>
-      
-    
-    
-      <div class="md-header__source">
-        <a href="https://github.com/meshcore-dev/meshcore/" title="Go to repository" class="md-source" data-md-component="source">
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@@ -0,0 +1,872 @@
+#include <Arduino.h>   // needed for PlatformIO
+#include <Mesh.h>
+
+#if defined(NRF52_PLATFORM)
+  #include <InternalFileSystem.h>
+#elif defined(ESP32)
+  #include <SPIFFS.h>
+#endif
+
+#define RADIOLIB_STATIC_ONLY 1
+#include <RadioLib.h>
+#include <helpers/ArduinoHelpers.h>
+#include <helpers/StaticPoolPacketManager.h>
+#include <helpers/SimpleMeshTables.h>
+#include <helpers/IdentityStore.h>
+#include <helpers/AutoDiscoverRTCClock.h>
+#include <helpers/AdvertDataHelpers.h>
+#include <helpers/TxtDataHelpers.h>
+#include <RTClib.h>
+
+/* ------------------------------ Config -------------------------------- */
+
+#define FIRMWARE_VER_TEXT   "v6 (build: 27 Feb 2025)"
+
+#ifndef LORA_FREQ
+  #define LORA_FREQ   915.0
+#endif
+#ifndef LORA_BW
+  #define LORA_BW     250
+#endif
+#ifndef LORA_SF
+  #define LORA_SF     10
+#endif
+#ifndef LORA_CR
+  #define LORA_CR      5
+#endif
+#ifndef LORA_TX_POWER
+  #define LORA_TX_POWER  20
+#endif
+
+#ifndef ADVERT_NAME
+  #define  ADVERT_NAME   "repeater"
+#endif
+#ifndef ADVERT_LAT
+  #define  ADVERT_LAT  0.0
+#endif
+#ifndef ADVERT_LON
+  #define  ADVERT_LON  0.0
+#endif
+
+#ifndef ADMIN_PASSWORD
+  #define  ADMIN_PASSWORD  "password"
+#endif
+
+#define MIN_LOCAL_ADVERT_INTERVAL   60
+
+#if defined(HELTEC_LORA_V3)
+  #include <helpers/HeltecV3Board.h>
+  #include <helpers/CustomSX1262Wrapper.h>
+  static HeltecV3Board board;
+#elif defined(HELTEC_LORA_V2)
+  #include <helpers/HeltecV2Board.h>
+  #include <helpers/CustomSX1276Wrapper.h>
+  static HeltecV2Board board;
+#elif defined(ARDUINO_XIAO_ESP32C3)
+  #include <helpers/XiaoC3Board.h>
+  #include <helpers/CustomSX1262Wrapper.h>
+  #include <helpers/CustomSX1268Wrapper.h>
+  static XiaoC3Board board;
+#elif defined(SEEED_XIAO_S3) || defined(LILYGO_T3S3)
+  #include <helpers/ESP32Board.h>
+  #include <helpers/CustomSX1262Wrapper.h>
+  static ESP32Board board;
+#elif defined(RAK_4631)
+  #include <helpers/nrf52/RAK4631Board.h>
+  #include <helpers/CustomSX1262Wrapper.h>
+  static RAK4631Board board;
+#else
+  #error "need to provide a 'board' object"
+#endif
+
+#define PACKET_LOG_FILE  "/packet_log"
+
+/* ------------------------------ Code -------------------------------- */
+
+// Believe it or not, this std C function is busted on some platforms!
+static uint32_t _atoi(const char* sp) {
+  uint32_t n = 0;
+  while (*sp && *sp >= '0' && *sp <= '9') {
+    n *= 10;
+    n += (*sp++ - '0');
+  }
+  return n;
+}
+
+#define CMD_GET_STATUS      0x01
+
+#define RESP_SERVER_LOGIN_OK      0   // response to ANON_REQ
+
+struct RepeaterStats {
+  uint16_t batt_milli_volts;
+  uint16_t curr_tx_queue_len;
+  uint16_t curr_free_queue_len;
+  int16_t  last_rssi;
+  uint32_t n_packets_recv;
+  uint32_t n_packets_sent;
+  uint32_t total_air_time_secs;
+  uint32_t total_up_time_secs;
+  uint32_t n_sent_flood, n_sent_direct;
+  uint32_t n_recv_flood, n_recv_direct;
+  uint16_t n_full_events, reserved1;
+  uint16_t n_direct_dups, n_flood_dups;
+};
+
+struct ClientInfo {
+  mesh::Identity id;
+  uint32_t last_timestamp, last_activity;
+  uint8_t secret[PUB_KEY_SIZE];
+  bool    is_admin;
+  int8_t  out_path_len;
+  uint8_t out_path[MAX_PATH_SIZE];
+};
+
+#define MAX_CLIENTS   4
+
+// NOTE: need to space the ACK and the reply text apart (in CLI)
+#define CLI_REPLY_DELAY_MILLIS  1500
+
+struct NodePrefs {  // persisted to file
+  float airtime_factor;
+  char node_name[32];
+  double node_lat, node_lon;
+  char password[16];
+  float freq;
+  uint8_t tx_power_dbm;
+  uint8_t disable_fwd;
+  uint8_t advert_interval;   // minutes / 2
+  uint8_t unused;
+  float rx_delay_base;
+  float tx_delay_factor;
+  char guest_password[16];
+  float direct_tx_delay_factor;
+};
+
+class MyMesh : public mesh::Mesh {
+  RadioLibWrapper* my_radio;
+  FILESYSTEM* _fs;
+  mesh::MainBoard* _board;
+  unsigned long next_local_advert;
+  bool _logging;
+  NodePrefs _prefs;
+  uint8_t reply_data[MAX_PACKET_PAYLOAD];
+  ClientInfo known_clients[MAX_CLIENTS];
+
+  ClientInfo* putClient(const mesh::Identity& id) {
+    uint32_t min_time = 0xFFFFFFFF;
+    ClientInfo* oldest = &known_clients[0];
+    for (int i = 0; i < MAX_CLIENTS; i++) {
+      if (known_clients[i].last_activity < min_time) {
+        oldest = &known_clients[i];
+        min_time = oldest->last_activity;
+      }
+      if (id.matches(known_clients[i].id)) return &known_clients[i];  // already known
+    }
+
+    oldest->id = id;
+    oldest->out_path_len = -1;  // initially out_path is unknown
+    oldest->last_timestamp = 0;
+    self_id.calcSharedSecret(oldest->secret, id);   // calc ECDH shared secret
+    return oldest;
+  }
+
+  int handleRequest(ClientInfo* sender, uint8_t* payload, size_t payload_len) { 
+    uint32_t now = getRTCClock()->getCurrentTimeUnique();
+    memcpy(reply_data, &now, 4);   // response packets always prefixed with timestamp
+
+    switch (payload[0]) {
+      case CMD_GET_STATUS: {   // guests can also access this now
+        RepeaterStats stats;
+        stats.batt_milli_volts = board.getBattMilliVolts();
+        stats.curr_tx_queue_len = _mgr->getOutboundCount();
+        stats.curr_free_queue_len = _mgr->getFreeCount();
+        stats.last_rssi = (int16_t) my_radio->getLastRSSI();
+        stats.n_packets_recv = my_radio->getPacketsRecv();
+        stats.n_packets_sent = my_radio->getPacketsSent();
+        stats.total_air_time_secs = getTotalAirTime() / 1000;
+        stats.total_up_time_secs = _ms->getMillis() / 1000;
+        stats.n_sent_flood = getNumSentFlood();
+        stats.n_sent_direct = getNumSentDirect();
+        stats.n_recv_flood = getNumRecvFlood();
+        stats.n_recv_direct = getNumRecvDirect();
+        stats.n_full_events = getNumFullEvents();
+        stats.reserved1 = 0;
+        stats.n_direct_dups = ((SimpleMeshTables *)getTables())->getNumDirectDups();
+        stats.n_flood_dups = ((SimpleMeshTables *)getTables())->getNumFloodDups();
+
+        memcpy(&reply_data[4], &stats, sizeof(stats));
+
+        return 4 + sizeof(stats);  //  reply_len
+      }
+    }
+    // unknown command
+    return 0;  // reply_len
+  }
+
+  void checkAdvertInterval() {
+    if (_prefs.advert_interval * 2 < MIN_LOCAL_ADVERT_INTERVAL) {
+      _prefs.advert_interval = 0;  // turn it off, now that device has been manually configured
+    }
+  }
+
+  void updateAdvertTimer() {
+    if (_prefs.advert_interval > 0) {  // schedule local advert timer
+      next_local_advert = futureMillis((uint32_t)_prefs.advert_interval * 2 * 60 * 1000);
+    } else {
+      next_local_advert = 0;  // stop the timer
+    }
+  }
+
+  mesh::Packet* createSelfAdvert() {
+    uint8_t app_data[MAX_ADVERT_DATA_SIZE];
+    uint8_t app_data_len;
+    {
+      AdvertDataBuilder builder(ADV_TYPE_REPEATER, _prefs.node_name, _prefs.node_lat, _prefs.node_lon);
+      app_data_len = builder.encodeTo(app_data);
+    }
+
+   return createAdvert(self_id, app_data, app_data_len);
+  }
+
+  File openAppend(const char* fname) {
+  #if defined(NRF52_PLATFORM)
+    return _fs->open(fname, FILE_O_WRITE);
+  #else
+    return _fs->open(fname, "a", true);
+  #endif
+  }
+
+protected:
+  float getAirtimeBudgetFactor() const override {
+    return _prefs.airtime_factor;
+  }
+
+  bool allowPacketForward(const mesh::Packet* packet) override {
+    return !_prefs.disable_fwd;
+  }
+
+  const char* getLogDateTime() override { 
+    static char tmp[32];
+    uint32_t now = getRTCClock()->getCurrentTime();
+    DateTime dt = DateTime(now);
+    sprintf(tmp, "%02d:%02d:%02d - %d/%d/%d U", dt.hour(), dt.minute(), dt.second(), dt.day(), dt.month(), dt.year());
+    return tmp;
+  }
+
+  void logRx(mesh::Packet* pkt, int len, float score) override {
+    if (_logging) {
+      File f = openAppend(PACKET_LOG_FILE);
+      if (f) {
+        f.print(getLogDateTime());
+        f.printf(": RX, len=%d (type=%d, route=%s, payload_len=%d) SNR=%d RSSI=%d score=%d",
+          len, pkt->getPayloadType(), pkt->isRouteDirect() ? "D" : "F", pkt->payload_len,
+          (int)_radio->getLastSNR(), (int)_radio->getLastRSSI(), (int)(score*1000));
+
+        if (pkt->getPayloadType() == PAYLOAD_TYPE_PATH || pkt->getPayloadType() == PAYLOAD_TYPE_REQ
+          || pkt->getPayloadType() == PAYLOAD_TYPE_RESPONSE || pkt->getPayloadType() == PAYLOAD_TYPE_TXT_MSG) {
+          f.printf(" [%02X -> %02X]\n", (uint32_t)pkt->payload[1], (uint32_t)pkt->payload[0]);
+        } else {
+          f.printf("\n");
+        }
+        f.close();
+      }
+    }
+  }
+  void logTx(mesh::Packet* pkt, int len) override {
+    if (_logging) {
+      File f = openAppend(PACKET_LOG_FILE);
+      if (f) {
+        f.print(getLogDateTime());
+        f.printf(": TX, len=%d (type=%d, route=%s, payload_len=%d)", 
+          len, pkt->getPayloadType(), pkt->isRouteDirect() ? "D" : "F", pkt->payload_len);
+
+        if (pkt->getPayloadType() == PAYLOAD_TYPE_PATH || pkt->getPayloadType() == PAYLOAD_TYPE_REQ
+          || pkt->getPayloadType() == PAYLOAD_TYPE_RESPONSE || pkt->getPayloadType() == PAYLOAD_TYPE_TXT_MSG) {
+          f.printf(" [%02X -> %02X]\n", (uint32_t)pkt->payload[1], (uint32_t)pkt->payload[0]);
+        } else {
+          f.printf("\n");
+        }
+        f.close();
+      }
+    }
+  }
+  void logTxFail(mesh::Packet* pkt, int len) override {
+    if (_logging) {
+      File f = openAppend(PACKET_LOG_FILE);
+      if (f) {
+        f.print(getLogDateTime());
+        f.printf(": TX FAIL!, len=%d (type=%d, route=%s, payload_len=%d)\n", 
+          len, pkt->getPayloadType(), pkt->isRouteDirect() ? "D" : "F", pkt->payload_len);
+        f.close();
+      }
+    }
+  }
+
+  int calcRxDelay(float score, uint32_t air_time) const override {
+    if (_prefs.rx_delay_base <= 0.0f) return 0;
+    return (int) ((pow(_prefs.rx_delay_base, 0.85f - score) - 1.0) * air_time);
+  }
+
+  uint32_t getRetransmitDelay(const mesh::Packet* packet) override {
+    uint32_t t = (_radio->getEstAirtimeFor(packet->path_len + packet->payload_len + 2) * _prefs.tx_delay_factor);
+    return getRNG()->nextInt(0, 6)*t;
+  }
+  uint32_t getDirectRetransmitDelay(const mesh::Packet* packet) override {
+    uint32_t t = (_radio->getEstAirtimeFor(packet->path_len + packet->payload_len + 2) * _prefs.direct_tx_delay_factor);
+    return getRNG()->nextInt(0, 6)*t;
+  }
+
+  void onAnonDataRecv(mesh::Packet* packet, uint8_t type, const mesh::Identity& sender, uint8_t* data, size_t len) override {
+    if (type == PAYLOAD_TYPE_ANON_REQ) {  // received an initial request by a possible admin client (unknown at this stage)
+      uint32_t timestamp;
+      memcpy(&timestamp, data, 4);
+
+      bool is_admin;
+      data[len] = 0;  // ensure null terminator
+      if (strcmp((char *) &data[4], _prefs.password) == 0) {  // check for valid password
+        is_admin = true;
+      } else if (strcmp((char *) &data[4], _prefs.guest_password) == 0) {  // check guest password
+        is_admin = false;
+      } else {
+    #if MESH_DEBUG
+        MESH_DEBUG_PRINTLN("Invalid password: %s", &data[4]);
+    #endif
+        return;
+      }
+
+      auto client = putClient(sender);  // add to known clients (if not already known)
+      if (timestamp <= client->last_timestamp) {
+        MESH_DEBUG_PRINTLN("Possible login replay attack!");
+        return;  // FATAL: client table is full -OR- replay attack 
+      }
+
+      MESH_DEBUG_PRINTLN("Login success!");
+      client->last_timestamp = timestamp;
+      client->last_activity = getRTCClock()->getCurrentTime();
+      client->is_admin = is_admin;
+
+      uint32_t now = getRTCClock()->getCurrentTimeUnique();
+      memcpy(reply_data, &now, 4);   // response packets always prefixed with timestamp
+    #if 0
+      memcpy(&reply_data[4], "OK", 2);   // legacy response
+    #else
+      reply_data[4] = RESP_SERVER_LOGIN_OK;
+      reply_data[5] = 0;  // NEW: recommended keep-alive interval (secs / 16)
+      reply_data[6] = is_admin ? 1 : 0;
+      reply_data[7] = 0;  // FUTURE: reserved
+      getRNG()->random(&reply_data[8], 4);   // random blob to help packet-hash uniqueness
+  #endif
+
+      if (packet->isRouteFlood()) {
+        // let this sender know path TO here, so they can use sendDirect(), and ALSO encode the response
+        mesh::Packet* path = createPathReturn(sender, client->secret, packet->path, packet->path_len,
+                                              PAYLOAD_TYPE_RESPONSE, reply_data, 12);
+        if (path) sendFlood(path);
+      } else {
+        mesh::Packet* reply = createDatagram(PAYLOAD_TYPE_RESPONSE, sender, client->secret, reply_data, 12);
+        if (reply) {
+          if (client->out_path_len >= 0) {  // we have an out_path, so send DIRECT
+            sendDirect(reply, client->out_path, client->out_path_len);
+          } else {
+            sendFlood(reply);
+          }
+        }
+      }
+    }
+  }
+
+  int  matching_peer_indexes[MAX_CLIENTS];
+
+  int searchPeersByHash(const uint8_t* hash) override {
+    int n = 0;
+    for (int i = 0; i < MAX_CLIENTS; i++) {
+      if (known_clients[i].id.isHashMatch(hash)) {
+        matching_peer_indexes[n++] = i;  // store the INDEXES of matching contacts (for subsequent 'peer' methods)
+      }
+    }
+    return n;
+  }
+
+  void getPeerSharedSecret(uint8_t* dest_secret, int peer_idx) override {
+    int i = matching_peer_indexes[peer_idx];
+    if (i >= 0 && i < MAX_CLIENTS) {
+      // lookup pre-calculated shared_secret
+      memcpy(dest_secret, known_clients[i].secret, PUB_KEY_SIZE);
+    } else {
+      MESH_DEBUG_PRINTLN("getPeerSharedSecret: Invalid peer idx: %d", i);
+    }
+  }
+
+  void onPeerDataRecv(mesh::Packet* packet, uint8_t type, int sender_idx, const uint8_t* secret, uint8_t* data, size_t len) override {
+    int i = matching_peer_indexes[sender_idx];
+    if (i < 0 || i >= MAX_CLIENTS) {  // get from our known_clients table (sender SHOULD already be known in this context)
+      MESH_DEBUG_PRINTLN("onPeerDataRecv: invalid peer idx: %d", i);
+      return;
+    }
+    auto client = &known_clients[i];
+    if (type == PAYLOAD_TYPE_REQ) {  // request (from a Known admin client!)
+      uint32_t timestamp;
+      memcpy(&timestamp, data, 4);
+
+      if (timestamp > client->last_timestamp) {  // prevent replay attacks 
+        int reply_len = handleRequest(client, &data[4], len - 4);
+        if (reply_len == 0) return;  // invalid command
+
+        client->last_timestamp = timestamp;
+        client->last_activity = getRTCClock()->getCurrentTime();
+
+        if (packet->isRouteFlood()) {
+          // let this sender know path TO here, so they can use sendDirect(), and ALSO encode the response
+          mesh::Packet* path = createPathReturn(client->id, secret, packet->path, packet->path_len,
+                                                PAYLOAD_TYPE_RESPONSE, reply_data, reply_len);
+          if (path) sendFlood(path);
+        } else {
+          mesh::Packet* reply = createDatagram(PAYLOAD_TYPE_RESPONSE, client->id, secret, reply_data, reply_len);
+          if (reply) {
+            if (client->out_path_len >= 0) {  // we have an out_path, so send DIRECT
+              sendDirect(reply, client->out_path, client->out_path_len);
+            } else {
+              sendFlood(reply);
+            }
+          }
+        }
+      } else {
+        MESH_DEBUG_PRINTLN("onPeerDataRecv: possible replay attack detected");
+      }
+    } else if (type == PAYLOAD_TYPE_TXT_MSG && len > 5 && client->is_admin) {   // a CLI command
+      uint32_t sender_timestamp;
+      memcpy(&sender_timestamp, data, 4);  // timestamp (by sender's RTC clock - which could be wrong)
+      uint flags = (data[4] >> 2);   // message attempt number, and other flags
+
+      if (!(flags == TXT_TYPE_PLAIN || flags == TXT_TYPE_CLI_DATA)) {
+        MESH_DEBUG_PRINTLN("onPeerDataRecv: unsupported text type received: flags=%02x", (uint32_t)flags);
+      } else if (sender_timestamp > client->last_timestamp) {  // prevent replay attacks 
+        client->last_timestamp = sender_timestamp;
+        client->last_activity = getRTCClock()->getCurrentTime();
+
+        // len can be > original length, but 'text' will be padded with zeroes
+        data[len] = 0; // need to make a C string again, with null terminator
+
+        uint32_t ack_hash;    // calc truncated hash of the message timestamp + text + sender pub_key, to prove to sender that we got it
+        mesh::Utils::sha256((uint8_t *) &ack_hash, 4, data, 5 + strlen((char *)&data[5]), client->id.pub_key, PUB_KEY_SIZE);
+
+        mesh::Packet* ack = createAck(ack_hash);
+        if (ack) {
+          if (client->out_path_len < 0) {
+            sendFlood(ack);
+          } else {
+            sendDirect(ack, client->out_path, client->out_path_len);
+          }
+        }
+
+        uint8_t temp[166];
+        handleCommand(sender_timestamp, (const char *) &data[5], (char *) &temp[5]);
+        int text_len = strlen((char *) &temp[5]);
+        if (text_len > 0) {
+          uint32_t timestamp = getRTCClock()->getCurrentTimeUnique();
+          if (timestamp == sender_timestamp) {
+            // WORKAROUND: the two timestamps need to be different, in the CLI view
+            timestamp++;
+          }
+          memcpy(temp, &timestamp, 4);   // mostly an extra blob to help make packet_hash unique
+          temp[4] = (TXT_TYPE_PLAIN << 2);   // TODO: change this to TXT_TYPE_CLI_DATA soon
+
+          // calc expected ACK reply
+          //mesh::Utils::sha256((uint8_t *)&expected_ack_crc, 4, temp, 5 + text_len, self_id.pub_key, PUB_KEY_SIZE);
+
+          auto reply = createDatagram(PAYLOAD_TYPE_TXT_MSG, client->id, secret, temp, 5 + text_len);
+          if (reply) {
+            if (client->out_path_len < 0) {
+              sendFlood(reply, CLI_REPLY_DELAY_MILLIS);
+            } else {
+              sendDirect(reply, client->out_path, client->out_path_len, CLI_REPLY_DELAY_MILLIS);
+            }
+          }
+        }
+      } else {
+        MESH_DEBUG_PRINTLN("onPeerDataRecv: possible replay attack detected");
+      }
+    }
+  }
+
+  bool onPeerPathRecv(mesh::Packet* packet, int sender_idx, const uint8_t* secret, uint8_t* path, uint8_t path_len, uint8_t extra_type, uint8_t* extra, uint8_t extra_len) override {
+    // TODO: prevent replay attacks
+    int i = matching_peer_indexes[sender_idx];
+
+    if (i >= 0 && i < MAX_CLIENTS) {  // get from our known_clients table (sender SHOULD already be known in this context)
+      MESH_DEBUG_PRINTLN("PATH to client, path_len=%d", (uint32_t) path_len);
+      auto client = &known_clients[i];
+      memcpy(client->out_path, path, client->out_path_len = path_len);  // store a copy of path, for sendDirect()
+    } else {
+      MESH_DEBUG_PRINTLN("onPeerPathRecv: invalid peer idx: %d", i);
+    }
+
+    // NOTE: no reciprocal path send!!
+    return false;
+  }
+
+public:
+  MyMesh(mesh::MainBoard& board, RadioLibWrapper& radio, mesh::MillisecondClock& ms, mesh::RNG& rng, mesh::RTCClock& rtc, SimpleMeshTables& tables)
+     : mesh::Mesh(radio, ms, rng, rtc, *new StaticPoolPacketManager(32), tables), _board(&board)
+  {
+    my_radio = &radio;
+    memset(known_clients, 0, sizeof(known_clients));
+    next_local_advert = 0;
+    _logging = false;
+
+    // defaults
+    memset(&_prefs, 0, sizeof(_prefs));
+    _prefs.airtime_factor = 1.0;    // one half
+    _prefs.rx_delay_base =   0.0f;  // turn off by default, was 10.0;
+    _prefs.tx_delay_factor = 0.5f;   // was 0.25f
+    StrHelper::strncpy(_prefs.node_name, ADVERT_NAME, sizeof(_prefs.node_name));
+    _prefs.node_lat = ADVERT_LAT;
+    _prefs.node_lon = ADVERT_LON;
+    StrHelper::strncpy(_prefs.password, ADMIN_PASSWORD, sizeof(_prefs.password));
+    _prefs.freq = LORA_FREQ;
+    _prefs.tx_power_dbm = LORA_TX_POWER;
+    _prefs.advert_interval = 1;  // default to 2 minutes for NEW installs
+  }
+
+  float getFreqPref() const { return _prefs.freq; }
+  uint8_t getTxPowerPref() const { return _prefs.tx_power_dbm; }
+
+  void begin(FILESYSTEM* fs) {
+    mesh::Mesh::begin();
+    _fs = fs;
+    // load persisted prefs
+    if (_fs->exists("/node_prefs")) {
+      File file = _fs->open("/node_prefs");
+      if (file) {
+        file.read((uint8_t *) &_prefs, sizeof(_prefs));
+        file.close();
+      }
+    }
+
+    updateAdvertTimer();
+  }
+
+  void savePrefs() {
+#if defined(NRF52_PLATFORM)
+    File file = _fs->open("/node_prefs", FILE_O_WRITE);
+    if (file) { file.seek(0); file.truncate(); }
+#else
+    File file = _fs->open("/node_prefs", "w", true);
+#endif
+    if (file) {
+      file.write((const uint8_t *)&_prefs, sizeof(_prefs));
+      file.close();
+    }
+  }
+
+  void sendSelfAdvertisement(int delay_millis) {
+    mesh::Packet* pkt = createSelfAdvert();
+    if (pkt) {
+      sendFlood(pkt, delay_millis);
+    } else {
+      MESH_DEBUG_PRINTLN("ERROR: unable to create advertisement packet!");
+    }
+  }
+
+  void loop() {
+    mesh::Mesh::loop();
+
+    if (next_local_advert && millisHasNowPassed(next_local_advert)) {
+      mesh::Packet* pkt = createSelfAdvert();
+      if (pkt) {
+        sendZeroHop(pkt);
+      }
+
+      updateAdvertTimer();   // schedule next local advert
+    }
+  }
+
+  void handleCommand(uint32_t sender_timestamp, const char* command, char reply[]) {
+    while (*command == ' ') command++;   // skip leading spaces
+
+    if (memcmp(command, "reboot", 6) == 0) {
+      board.reboot();  // doesn't return
+    } else if (memcmp(command, "advert", 6) == 0) {
+      sendSelfAdvertisement(400);
+      strcpy(reply, "OK - Advert sent");
+    } else if (memcmp(command, "clock sync", 10) == 0) {
+      uint32_t curr = getRTCClock()->getCurrentTime();
+      if (sender_timestamp > curr) {
+        getRTCClock()->setCurrentTime(sender_timestamp + 1);
+        strcpy(reply, "OK - clock set");
+      } else {
+        strcpy(reply, "ERR: clock cannot go backwards");
+      }
+    } else if (memcmp(command, "start ota", 9) == 0) {
+      if (_board->startOTAUpdate()) {
+        strcpy(reply, "OK");
+      } else {
+        strcpy(reply, "Error");
+      }
+    } else if (memcmp(command, "clock", 5) == 0) {
+      uint32_t now = getRTCClock()->getCurrentTime();
+      DateTime dt = DateTime(now);
+      sprintf(reply, "%02d:%02d - %d/%d/%d UTC", dt.hour(), dt.minute(), dt.day(), dt.month(), dt.year());
+    } else if (memcmp(command, "time ", 5) == 0) {  // set time (to epoch seconds)
+      uint32_t secs = _atoi(&command[5]);
+      uint32_t curr = getRTCClock()->getCurrentTime();
+      if (secs > curr) {
+        getRTCClock()->setCurrentTime(secs);
+        strcpy(reply, "(OK - clock set!)");
+      } else {
+        strcpy(reply, "(ERR: clock cannot go backwards)");
+      }
+    } else if (memcmp(command, "password ", 9) == 0) {
+      // change admin password
+      StrHelper::strncpy(_prefs.password, &command[9], sizeof(_prefs.password));
+      checkAdvertInterval();
+      savePrefs();
+      sprintf(reply, "password now: %s", _prefs.password);   // echo back just to let admin know for sure!!
+    } else if (memcmp(command, "set ", 4) == 0) {
+      const char* config = &command[4];
+      if (memcmp(config, "af ", 3) == 0) {
+        _prefs.airtime_factor = atof(&config[3]);
+        savePrefs();
+        strcpy(reply, "OK");
+      } else if (memcmp(config, "advert.interval ", 16) == 0) {
+        int mins = _atoi(&config[16]);
+        if (mins > 0 && mins < MIN_LOCAL_ADVERT_INTERVAL) {
+          sprintf(reply, "Error: min is %d mins", MIN_LOCAL_ADVERT_INTERVAL);
+        } else if (mins > 240) {
+          strcpy(reply, "Error: max is 240 mins");
+        } else {
+          _prefs.advert_interval = (uint8_t)(mins / 2);
+          updateAdvertTimer();
+          savePrefs();
+          strcpy(reply, "OK");
+        }
+      } else if (memcmp(config, "guest.password ", 15) == 0) {
+        StrHelper::strncpy(_prefs.guest_password, &config[15], sizeof(_prefs.guest_password));
+        savePrefs();
+        strcpy(reply, "OK");
+      } else if (memcmp(config, "name ", 5) == 0) {
+        StrHelper::strncpy(_prefs.node_name, &config[5], sizeof(_prefs.node_name));
+        checkAdvertInterval();
+        savePrefs();
+        strcpy(reply, "OK");
+      } else if (memcmp(config, "repeat ", 7) == 0) {
+        _prefs.disable_fwd = memcmp(&config[7], "off", 3) == 0;
+        savePrefs();
+        strcpy(reply, _prefs.disable_fwd ? "OK - repeat is now OFF" : "OK - repeat is now ON");
+      } else if (memcmp(config, "lat ", 4) == 0) {
+        _prefs.node_lat = atof(&config[4]);
+        checkAdvertInterval();
+        savePrefs();
+        strcpy(reply, "OK");
+      } else if (memcmp(config, "lon ", 4) == 0) {
+        _prefs.node_lon = atof(&config[4]);
+        checkAdvertInterval();
+        savePrefs();
+        strcpy(reply, "OK");
+      } else if (memcmp(config, "rxdelay ", 8) == 0) {
+        float db = atof(&config[8]);
+        if (db >= 0) {
+          _prefs.rx_delay_base = db;
+          savePrefs();
+          strcpy(reply, "OK");
+        } else {
+          strcpy(reply, "Error, cannot be negative");
+        }
+      } else if (memcmp(config, "txdelay ", 8) == 0) {
+        float f = atof(&config[8]);
+        if (f >= 0) {
+          _prefs.tx_delay_factor = f;
+          savePrefs();
+          strcpy(reply, "OK");
+        } else {
+          strcpy(reply, "Error, cannot be negative");
+        }
+      } else if (memcmp(config, "direct.txdelay ", 15) == 0) {
+        float f = atof(&config[15]);
+        if (f >= 0) {
+          _prefs.direct_tx_delay_factor = f;
+          savePrefs();
+          strcpy(reply, "OK");
+        } else {
+          strcpy(reply, "Error, cannot be negative");
+        }
+      } else if (memcmp(config, "tx ", 3) == 0) {
+        _prefs.tx_power_dbm = atoi(&config[3]);
+        savePrefs();
+        strcpy(reply, "OK - reboot to apply");
+      } else if (sender_timestamp == 0 && memcmp(config, "freq ", 5) == 0) {
+        _prefs.freq = atof(&config[5]);
+        savePrefs();
+        strcpy(reply, "OK - reboot to apply");
+      } else {
+        sprintf(reply, "unknown config: %s", config);
+      }
+    } else if (sender_timestamp == 0 && strcmp(command, "erase") == 0) {
+  #if defined(NRF52_PLATFORM)
+      bool s = InternalFS.format();
+  #elif defined(ESP32)
+      bool s = SPIFFS.format();
+  #else
+    #error "need to implement file system erase"
+  #endif
+      sprintf(reply, "File system erase: %s", s ? "OK" : "Err");
+    } else if (memcmp(command, "ver", 3) == 0) {
+      strcpy(reply, FIRMWARE_VER_TEXT);
+    } else if (memcmp(command, "log start", 9) == 0) {
+      _logging = true;
+      strcpy(reply, "   logging on");
+    } else if (memcmp(command, "log stop", 8) == 0) {
+      _logging = false;
+      strcpy(reply, "   logging off");
+    } else if (memcmp(command, "log erase", 9) == 0) {
+      _fs->remove(PACKET_LOG_FILE);
+      strcpy(reply, "   log erased");
+    } else if (sender_timestamp == 0 && memcmp(command, "log", 3) == 0) {
+      File f = _fs->open(PACKET_LOG_FILE);
+      if (f) {
+        while (f.available()) {
+          int c = f.read();
+          if (c < 0) break;
+          Serial.print((char)c);
+        }
+        f.close();
+      }
+      strcpy(reply, "   EOF");
+    } else {
+      sprintf(reply, "Unknown: %s (commands: reboot, advert, clock, set, ver, password, start ota)", command);
+    }
+  }
+};
+
+#if defined(NRF52_PLATFORM)
+RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY, SPI);
+#elif defined(P_LORA_SCLK)
+SPIClass spi;
+RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY, spi);
+#else
+RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY);
+#endif
+StdRNG fast_rng;
+SimpleMeshTables tables;
+
+#ifdef ESP32
+ESP32RTCClock fallback_clock;
+#else
+VolatileRTCClock fallback_clock; 
+#endif
+AutoDiscoverRTCClock rtc_clock(fallback_clock);
+
+MyMesh the_mesh(board, *new WRAPPER_CLASS(radio, board), *new ArduinoMillis(), fast_rng, rtc_clock, tables);
+
+void halt() {
+  while (1) ;
+}
+
+static char command[80];
+
+void setup() {
+  Serial.begin(115200);
+  delay(1000);
+
+  board.begin();
+#ifdef ESP32
+  fallback_clock.begin();
+#endif
+  rtc_clock.begin(Wire);
+
+#ifdef SX126X_DIO3_TCXO_VOLTAGE
+  float tcxo = SX126X_DIO3_TCXO_VOLTAGE;
+#else
+  float tcxo = 1.6f;
+#endif
+  
+#if defined(NRF52_PLATFORM)
+  SPI.setPins(P_LORA_MISO, P_LORA_SCLK, P_LORA_MOSI);
+  SPI.begin();
+#elif defined(P_LORA_SCLK)
+  spi.begin(P_LORA_SCLK, P_LORA_MISO, P_LORA_MOSI);
+#endif
+  int status = radio.begin(LORA_FREQ, LORA_BW, LORA_SF, LORA_CR, RADIOLIB_SX126X_SYNC_WORD_PRIVATE, LORA_TX_POWER, 8, tcxo);
+  if (status != RADIOLIB_ERR_NONE) {
+    delay(5000);
+    Serial.print("ERROR: radio init failed: ");
+    Serial.println(status);
+    halt();
+  }
+
+  radio.setCRC(0);
+
+#ifdef SX126X_CURRENT_LIMIT
+  radio.setCurrentLimit(SX126X_CURRENT_LIMIT);
+#endif
+
+#ifdef SX126X_DIO2_AS_RF_SWITCH
+  radio.setDio2AsRfSwitch(SX126X_DIO2_AS_RF_SWITCH);
+#endif
+
+  fast_rng.begin(radio.random(0x7FFFFFFF));
+
+  FILESYSTEM* fs;
+#if defined(NRF52_PLATFORM)
+  InternalFS.begin();
+  fs = &InternalFS;
+  IdentityStore store(InternalFS, "");
+#elif defined(ESP32)
+  SPIFFS.begin(true);
+  fs = &SPIFFS;
+  IdentityStore store(SPIFFS, "/identity");
+#else
+  #error "need to define filesystem"
+#endif
+  if (!store.load("_main", the_mesh.self_id)) {
+    MESH_DEBUG_PRINTLN("Generating new keypair");
+    RadioNoiseListener rng(radio);
+    the_mesh.self_id = mesh::LocalIdentity(&rng);  // create new random identity
+    store.save("_main", the_mesh.self_id);
+  }
+
+  Serial.print("Repeater ID: ");
+  mesh::Utils::printHex(Serial, the_mesh.self_id.pub_key, PUB_KEY_SIZE); Serial.println();
+
+  command[0] = 0;
+
+  the_mesh.begin(fs);
+
+  if (LORA_FREQ != the_mesh.getFreqPref()) {
+    radio.setFrequency(the_mesh.getFreqPref());
+  }
+  if (LORA_TX_POWER != the_mesh.getTxPowerPref()) {
+    radio.setOutputPower(the_mesh.getTxPowerPref());
+  }
+
+  // send out initial Advertisement to the mesh
+  the_mesh.sendSelfAdvertisement(2000);
+}
+
+void loop() {
+  int len = strlen(command);
+  while (Serial.available() && len < sizeof(command)-1) {
+    char c = Serial.read();
+    if (c != '\n') { 
+      command[len++] = c;
+      command[len] = 0;
+    }
+    Serial.print(c);
+  }
+  if (len == sizeof(command)-1) {  // command buffer full
+    command[sizeof(command)-1] = '\r';
+  }
+
+  if (len > 0 && command[len - 1] == '\r') {  // received complete line
+    command[len - 1] = 0;  // replace newline with C string null terminator
+    char reply[160];
+    the_mesh.handleCommand(0, command, reply);  // NOTE: there is no sender_timestamp via serial!
+    if (reply[0]) {
+      Serial.print("  -> "); Serial.println(reply);
+    }
+
+    command[0] = 0;  // reset command buffer
+  }
+
+  the_mesh.loop();
+}
@@ -0,0 +1,908 @@
+#include <Arduino.h>   // needed for PlatformIO
+#include <Mesh.h>
+
+#if defined(NRF52_PLATFORM)
+  #include <InternalFileSystem.h>
+#elif defined(ESP32)
+  #include <SPIFFS.h>
+#endif
+
+#define RADIOLIB_STATIC_ONLY 1
+#include <RadioLib.h>
+#include <helpers/ArduinoHelpers.h>
+#include <helpers/StaticPoolPacketManager.h>
+#include <helpers/SimpleMeshTables.h>
+#include <helpers/IdentityStore.h>
+#include <helpers/AutoDiscoverRTCClock.h>
+#include <helpers/AdvertDataHelpers.h>
+#include <helpers/TxtDataHelpers.h>
+#include <RTClib.h>
+
+/* ------------------------------ Config -------------------------------- */
+
+#define FIRMWARE_VER_TEXT   "v6 (build: 27 Feb 2025)"
+
+#ifndef LORA_FREQ
+  #define LORA_FREQ   915.0
+#endif
+#ifndef LORA_BW
+  #define LORA_BW     250
+#endif
+#ifndef LORA_SF
+  #define LORA_SF     10
+#endif
+#ifndef LORA_CR
+  #define LORA_CR      5
+#endif
+#ifndef LORA_TX_POWER
+  #define LORA_TX_POWER  20
+#endif
+
+#ifndef ADVERT_NAME
+  #define  ADVERT_NAME   "Test BBS"
+#endif
+#ifndef ADVERT_LAT
+  #define  ADVERT_LAT  0.0
+#endif
+#ifndef ADVERT_LON
+  #define  ADVERT_LON  0.0
+#endif
+
+#ifndef ADMIN_PASSWORD
+  #define  ADMIN_PASSWORD  "password"
+#endif
+
+#ifndef MAX_CLIENTS 
+ #define MAX_CLIENTS           32
+#endif
+
+#ifndef MAX_UNSYNCED_POSTS
+  #define MAX_UNSYNCED_POSTS    16
+#endif
+
+#define MIN_LOCAL_ADVERT_INTERVAL   8
+
+
+#if defined(HELTEC_LORA_V3)
+  #include <helpers/HeltecV3Board.h>
+  #include <helpers/CustomSX1262Wrapper.h>
+  static HeltecV3Board board;
+#elif defined(ARDUINO_XIAO_ESP32C3)
+  #include <helpers/XiaoC3Board.h>
+  #include <helpers/CustomSX1262Wrapper.h>
+  #include <helpers/CustomSX1268Wrapper.h>
+  static XiaoC3Board board;
+#elif defined(SEEED_XIAO_S3)
+  #include <helpers/ESP32Board.h>
+  #include <helpers/CustomSX1262Wrapper.h>
+  static ESP32Board board;
+#elif defined(RAK_4631)
+  #include <helpers/nrf52/RAK4631Board.h>
+  #include <helpers/CustomSX1262Wrapper.h>
+  static RAK4631Board board;
+#else
+  #error "need to provide a 'board' object"
+#endif
+
+/* ------------------------------ Code -------------------------------- */
+
+// Believe it or not, this std C function is busted on some platforms!
+static uint32_t _atoi(const char* sp) {
+  uint32_t n = 0;
+  while (*sp && *sp >= '0' && *sp <= '9') {
+    n *= 10;
+    n += (*sp++ - '0');
+  }
+  return n;
+}
+
+struct ClientInfo {
+  mesh::Identity id;
+  uint32_t last_timestamp;  // by THEIR clock
+  uint32_t last_activity;   // by OUR clock
+  uint32_t sync_since;  // sync messages SINCE this timestamp (by OUR clock)
+  uint32_t pending_ack;
+  uint32_t push_post_timestamp;
+  unsigned long ack_timeout;
+  bool     is_admin;
+  uint8_t  push_failures;
+  uint8_t  secret[PUB_KEY_SIZE];
+  int      out_path_len;
+  uint8_t  out_path[MAX_PATH_SIZE];
+};
+
+#define MAX_POST_TEXT_LEN    (160-9)
+
+struct PostInfo {
+  mesh::Identity author;
+  uint32_t post_timestamp;   // by OUR clock
+  char text[MAX_POST_TEXT_LEN+1];
+};
+
+#define REPLY_DELAY_MILLIS         1500
+#define PUSH_NOTIFY_DELAY_MILLIS   2000
+#define SYNC_PUSH_INTERVAL         2000
+
+#define PUSH_ACK_TIMEOUT_FLOOD    12000
+#define PUSH_TIMEOUT_BASE          4000
+#define PUSH_ACK_TIMEOUT_FACTOR    2000
+
+#define CLIENT_KEEP_ALIVE_SECS   128
+
+#define REQ_TYPE_KEEP_ALIVE   1
+
+#define RESP_SERVER_LOGIN_OK      0   // response to ANON_REQ
+
+struct NodePrefs {  // persisted to file
+  float airtime_factor;
+  char node_name[32];
+  double node_lat, node_lon;
+  char password[16];
+  float freq;
+  uint8_t tx_power_dbm;
+  uint8_t disable_fwd;
+  uint8_t advert_interval;   // minutes
+  uint8_t unused;
+  float rx_delay_base;
+  float tx_delay_factor;
+  char guest_password[16];
+  float direct_tx_delay_factor;
+};
+
+class MyMesh : public mesh::Mesh {
+  RadioLibWrapper* my_radio;
+  FILESYSTEM* _fs;
+  mesh::MainBoard* _board;
+  unsigned long next_local_advert;
+  NodePrefs _prefs;
+  uint8_t reply_data[MAX_PACKET_PAYLOAD];
+  int num_clients;
+  ClientInfo known_clients[MAX_CLIENTS];
+  unsigned long next_push;
+  int next_client_idx;  // for round-robin polling
+  int next_post_idx;
+  PostInfo posts[MAX_UNSYNCED_POSTS];   // cyclic queue
+
+  ClientInfo* putClient(const mesh::Identity& id) {
+    for (int i = 0; i < num_clients; i++) {
+      if (id.matches(known_clients[i].id)) return &known_clients[i];  // already known
+    }
+    ClientInfo* newClient;
+    if (num_clients < MAX_CLIENTS) {
+      newClient = &known_clients[num_clients++];
+    } else {    // table is currently full
+      // evict least active client
+      uint32_t oldest_timestamp = 0xFFFFFFFF;
+      newClient = &known_clients[0];
+      for (int i = 0; i < num_clients; i++) {
+        auto c = &known_clients[i];
+        if (c->last_activity < oldest_timestamp) {
+          oldest_timestamp = c->last_activity;
+          newClient = c;
+        }
+      }
+    }
+    newClient->id = id;
+    newClient->out_path_len = -1;  // initially out_path is unknown
+    newClient->last_timestamp = 0;
+    self_id.calcSharedSecret(newClient->secret, id);   // calc ECDH shared secret
+    return newClient;
+  }
+
+  void  evict(ClientInfo* client) {
+    client->last_activity = 0;  // this slot will now be re-used (will be oldest)
+    memset(client->id.pub_key, 0, sizeof(client->id.pub_key));
+    memset(client->secret, 0, sizeof(client->secret));
+    client->pending_ack = 0;
+  }
+
+  void addPost(ClientInfo* client, const char* postData) {
+    // TODO: suggested postData format: <title>/<descrption>
+    posts[next_post_idx].author = client->id;    // add to cyclic queue
+    StrHelper::strncpy(posts[next_post_idx].text, postData, MAX_POST_TEXT_LEN);
+
+    posts[next_post_idx].post_timestamp = getRTCClock()->getCurrentTimeUnique();
+    next_post_idx = (next_post_idx + 1) % MAX_UNSYNCED_POSTS;
+
+    next_push = futureMillis(PUSH_NOTIFY_DELAY_MILLIS);
+  }
+
+  void pushPostToClient(ClientInfo* client, PostInfo& post) {
+    int len = 0;
+    memcpy(&reply_data[len], &post.post_timestamp, 4); len += 4;   // this is a PAST timestamp... but should be accepted by client
+    reply_data[len++] = (TXT_TYPE_SIGNED_PLAIN << 2);  // 'signed' plain text
+
+    // encode prefix of post.author.pub_key
+    memcpy(&reply_data[len], post.author.pub_key, 4); len += 4;   // just first 4 bytes
+
+    int text_len = strlen(post.text);
+    memcpy(&reply_data[len], post.text, text_len); len += text_len;
+
+    // calc expected ACK reply
+    mesh::Utils::sha256((uint8_t *)&client->pending_ack, 4, reply_data, len, self_id.pub_key, PUB_KEY_SIZE);
+    client->push_post_timestamp = post.post_timestamp;
+
+    auto reply = createDatagram(PAYLOAD_TYPE_TXT_MSG, client->id, client->secret, reply_data, len);
+    if (reply) {
+      if (client->out_path_len < 0) {
+        sendFlood(reply);
+        client->ack_timeout = futureMillis(PUSH_ACK_TIMEOUT_FLOOD);
+      } else {
+        sendDirect(reply, client->out_path, client->out_path_len);
+        client->ack_timeout = futureMillis(PUSH_TIMEOUT_BASE + PUSH_ACK_TIMEOUT_FACTOR * (client->out_path_len + 1));
+      }
+    } else {
+      client->pending_ack = 0;
+      MESH_DEBUG_PRINTLN("Unable to push post to client");
+    }
+  }
+
+  bool processAck(const uint8_t *data) {
+    for (int i = 0; i < num_clients; i++) {
+      auto client = &known_clients[i];
+      if (client->pending_ack && memcmp(data, &client->pending_ack, 4) == 0) {     // got an ACK from Client!
+        client->pending_ack = 0;    // clear this, so next push can happen
+        client->push_failures = 0;
+        client->sync_since = client->push_post_timestamp;   // advance Client's SINCE timestamp, to sync next post
+        return true;
+      }
+    }
+    return false;
+  }
+
+  void checkAdvertInterval() {
+    if (_prefs.advert_interval < MIN_LOCAL_ADVERT_INTERVAL) {
+      _prefs.advert_interval = 0;  // turn it off, now that device has been manually configured
+    }
+  }
+
+  void updateAdvertTimer() {
+    if (_prefs.advert_interval > 0) {  // schedule local advert timer
+      next_local_advert = futureMillis(_prefs.advert_interval * 60 * 1000);
+    } else {
+      next_local_advert = 0;  // stop the timer
+    }
+  }
+
+  mesh::Packet* createSelfAdvert() {
+    uint8_t app_data[MAX_ADVERT_DATA_SIZE];
+    uint8_t app_data_len;
+    {
+      AdvertDataBuilder builder(ADV_TYPE_ROOM, _prefs.node_name, _prefs.node_lat, _prefs.node_lon);
+      app_data_len = builder.encodeTo(app_data);
+    }
+
+   return createAdvert(self_id, app_data, app_data_len);
+  }
+
+protected:
+  float getAirtimeBudgetFactor() const override {
+    return _prefs.airtime_factor;
+  }
+
+  int calcRxDelay(float score, uint32_t air_time) const override {
+    if (_prefs.rx_delay_base <= 0.0f) return 0;
+    return (int) ((pow(_prefs.rx_delay_base, 0.85f - score) - 1.0) * air_time);
+  }
+
+  const char* getLogDateTime() override { 
+    static char tmp[32];
+    uint32_t now = getRTCClock()->getCurrentTime();
+    DateTime dt = DateTime(now);
+    sprintf(tmp, "%02d:%02d:%02d - %d/%d/%d U", dt.hour(), dt.minute(), dt.second(), dt.day(), dt.month(), dt.year());
+    return tmp;
+  }
+
+  uint32_t getRetransmitDelay(const mesh::Packet* packet) override {
+    uint32_t t = (_radio->getEstAirtimeFor(packet->path_len + packet->payload_len + 2) * _prefs.tx_delay_factor);
+    return getRNG()->nextInt(0, 6)*t;
+  }
+  uint32_t getDirectRetransmitDelay(const mesh::Packet* packet) override {
+    uint32_t t = (_radio->getEstAirtimeFor(packet->path_len + packet->payload_len + 2) * _prefs.direct_tx_delay_factor);
+    return getRNG()->nextInt(0, 6)*t;
+  }
+
+  bool allowPacketForward(const mesh::Packet* packet) override {
+    return !_prefs.disable_fwd;
+  }
+
+  void onAnonDataRecv(mesh::Packet* packet, uint8_t type, const mesh::Identity& sender, uint8_t* data, size_t len) override {
+    if (type == PAYLOAD_TYPE_ANON_REQ) {  // received an initial request by a possible admin client (unknown at this stage)
+      uint32_t sender_timestamp, sender_sync_since;
+      memcpy(&sender_timestamp, data, 4);
+      memcpy(&sender_sync_since, &data[4], 4);  // sender's "sync messags SINCE x" timestamp
+
+      bool is_admin;
+      data[len] = 0;  // ensure null terminator
+      if (strcmp((char *) &data[8], _prefs.password) == 0) {  // check for valid admin password
+        is_admin = true;
+      } else {
+        is_admin = false;
+        if (strcmp((char *) &data[8], _prefs.guest_password) != 0) {  // check the room/public password
+          MESH_DEBUG_PRINTLN("Incorrect room password");
+          return;   // no response. Client will timeout
+        }
+      }
+
+      auto client = putClient(sender);  // add to known clients (if not already known)
+      if (sender_timestamp <= client->last_timestamp) {
+        MESH_DEBUG_PRINTLN("possible replay attack!");
+        return;
+      }
+
+      MESH_DEBUG_PRINTLN("Login success!");
+      client->is_admin = is_admin;
+      client->last_timestamp = sender_timestamp;
+      client->sync_since = sender_sync_since;
+      client->pending_ack = 0;
+      client->push_failures = 0;
+
+      uint32_t now = getRTCClock()->getCurrentTime();
+      client->last_activity = now;
+
+      now = getRTCClock()->getCurrentTimeUnique();
+      memcpy(reply_data, &now, 4);   // response packets always prefixed with timestamp
+      // TODO: maybe reply with count of messages waiting to be synced for THIS client?
+      reply_data[4] = RESP_SERVER_LOGIN_OK;
+      reply_data[5] = (CLIENT_KEEP_ALIVE_SECS >> 4);  // NEW: recommended keep-alive interval (secs / 16)
+      reply_data[6] = 0;  // FUTURE: reserved
+      reply_data[7] = 0;  // FUTURE: reserved
+      memcpy(&reply_data[8], "OK", 2);  // REVISIT: not really needed
+
+      next_push = futureMillis(PUSH_NOTIFY_DELAY_MILLIS);  // delay next push, give RESPONSE packet time to arrive first
+
+      if (packet->isRouteFlood()) {
+        // let this sender know path TO here, so they can use sendDirect(), and ALSO encode the response
+        mesh::Packet* path = createPathReturn(sender, client->secret, packet->path, packet->path_len,
+                                              PAYLOAD_TYPE_RESPONSE, reply_data, 8 + 2);
+        if (path) sendFlood(path);
+      } else {
+        mesh::Packet* reply = createDatagram(PAYLOAD_TYPE_RESPONSE, sender, client->secret, reply_data, 8 + 2);
+        if (reply) {
+          if (client->out_path_len >= 0) {  // we have an out_path, so send DIRECT
+            sendDirect(reply, client->out_path, client->out_path_len);
+          } else {
+            sendFlood(reply);
+          }
+        }
+      }
+    }
+  }
+
+  int  matching_peer_indexes[MAX_CLIENTS];
+
+  int searchPeersByHash(const uint8_t* hash) override {
+    int n = 0;
+    for (int i = 0; i < num_clients; i++) {
+      if (known_clients[i].id.isHashMatch(hash)) {
+        matching_peer_indexes[n++] = i;  // store the INDEXES of matching contacts (for subsequent 'peer' methods)
+      }
+    }
+    return n;
+  }
+
+  void getPeerSharedSecret(uint8_t* dest_secret, int peer_idx) override {
+    int i = matching_peer_indexes[peer_idx];
+    if (i >= 0 && i < num_clients) {
+      // lookup pre-calculated shared_secret
+      memcpy(dest_secret, known_clients[i].secret, PUB_KEY_SIZE);
+    } else {
+      MESH_DEBUG_PRINTLN("getPeerSharedSecret: Invalid peer idx: %d", i);
+    }
+  }
+
+  void onPeerDataRecv(mesh::Packet* packet, uint8_t type, int sender_idx, const uint8_t* secret, uint8_t* data, size_t len) override {
+    int i = matching_peer_indexes[sender_idx];
+    if (i < 0 || i >= num_clients) {  // get from our known_clients table (sender SHOULD already be known in this context)
+      MESH_DEBUG_PRINTLN("onPeerDataRecv: invalid peer idx: %d", i);
+      return;
+    }
+    auto client = &known_clients[i];
+    if (type == PAYLOAD_TYPE_TXT_MSG && len > 5) {   // a CLI command or new Post
+      uint32_t sender_timestamp;
+      memcpy(&sender_timestamp, data, 4);  // timestamp (by sender's RTC clock - which could be wrong)
+      uint flags = (data[4] >> 2);   // message attempt number, and other flags
+
+      if (!(flags == TXT_TYPE_PLAIN || flags == TXT_TYPE_CLI_DATA)) {
+        MESH_DEBUG_PRINTLN("onPeerDataRecv: unsupported command flags received: flags=%02x", (uint32_t)flags);
+      } else if (sender_timestamp > client->last_timestamp) {  // prevent replay attacks 
+        client->last_timestamp = sender_timestamp;
+
+        uint32_t now = getRTCClock()->getCurrentTimeUnique();
+        client->last_activity = now;
+        client->push_failures = 0;  // reset so push can resume (if prev failed)
+
+        // len can be > original length, but 'text' will be padded with zeroes
+        data[len] = 0; // need to make a C string again, with null terminator
+
+        uint32_t ack_hash;    // calc truncated hash of the message timestamp + text + sender pub_key, to prove to sender that we got it
+        mesh::Utils::sha256((uint8_t *) &ack_hash, 4, data, 5 + strlen((char *)&data[5]), client->id.pub_key, PUB_KEY_SIZE);
+
+        uint8_t temp[166];
+        bool send_ack;
+        if (flags == TXT_TYPE_CLI_DATA) {
+          if (client->is_admin) {
+            handleAdminCommand(sender_timestamp, (const char *) &data[5], (char *) &temp[5]);
+            send_ack = true;
+          } else {
+            temp[5] = 0;  // no reply
+            send_ack = false;  // and no ACK...  user shoudn't be sending these
+          }
+        } else {   // TXT_TYPE_PLAIN
+          addPost(client, (const char *) &data[5]);
+          temp[5] = 0;  // no reply (ACK is enough)
+          send_ack = true;
+        }
+
+        if (send_ack) {
+          mesh::Packet* ack = createAck(ack_hash);
+          if (ack) {
+            if (client->out_path_len < 0) {
+              sendFlood(ack);
+            } else {
+              sendDirect(ack, client->out_path, client->out_path_len);
+            }
+          }
+        }
+
+        int text_len = strlen((char *) &temp[5]);
+        if (text_len > 0) {
+          if (now == sender_timestamp) {
+            // WORKAROUND: the two timestamps need to be different, in the CLI view
+            now++;
+          }
+          memcpy(temp, &now, 4);   // mostly an extra blob to help make packet_hash unique
+          temp[4] = (TXT_TYPE_PLAIN << 2);  // attempt and flags
+
+          // calc expected ACK reply
+          //mesh::Utils::sha256((uint8_t *)&expected_ack_crc, 4, temp, 5 + text_len, self_id.pub_key, PUB_KEY_SIZE);
+
+          auto reply = createDatagram(PAYLOAD_TYPE_TXT_MSG, client->id, secret, temp, 5 + text_len);
+          if (reply) {
+            if (client->out_path_len < 0) {
+              sendFlood(reply, REPLY_DELAY_MILLIS);
+            } else {
+              sendDirect(reply, client->out_path, client->out_path_len, REPLY_DELAY_MILLIS);
+            }
+          }
+        }
+      } else {
+        MESH_DEBUG_PRINTLN("onPeerDataRecv: possible replay attack detected");
+      }
+    } else if (type == PAYLOAD_TYPE_REQ && len >= 5) {
+      uint32_t sender_timestamp;
+      memcpy(&sender_timestamp, data, 4);  // timestamp (by sender's RTC clock - which could be wrong)
+      if (data[4] == REQ_TYPE_KEEP_ALIVE && packet->isRouteDirect()) {   // request type
+        uint32_t forceSince = 0;
+        if (len >= 9) {   // optional - last post_timestamp client received
+          memcpy(&forceSince, &data[5], 4);    // NOTE: this may be 0, if part of decrypted PADDING!
+        }
+        if (forceSince > 0) { 
+          client->sync_since = forceSince;    // force-update the 'sync since'
+          len = 9;   // for ACK hash calc below
+        } else {
+          len = 5;   // for ACK hash calc below
+        }
+
+        uint32_t now = getRTCClock()->getCurrentTime();
+        client->last_activity = now;   // <-- THIS will keep client connection alive
+        client->push_failures = 0;  // reset so push can resume (if prev failed)
+        client->pending_ack = 0;
+
+        // TODO: Throttle KEEP_ALIVE requests!
+        // if client sends too quickly, evict()
+
+        // RULE: only send keep_alive response DIRECT!
+        if (client->out_path_len >= 0) {
+          uint32_t ack_hash;    // calc ACK to prove to sender that we got request
+          mesh::Utils::sha256((uint8_t *) &ack_hash, 4, data, len, client->id.pub_key, PUB_KEY_SIZE);
+
+          auto reply = createAck(ack_hash);
+          if (reply) {
+            sendDirect(reply, client->out_path, client->out_path_len);
+          }
+        }
+      }
+    }
+  }
+
+  bool onPeerPathRecv(mesh::Packet* packet, int sender_idx, const uint8_t* secret, uint8_t* path, uint8_t path_len, uint8_t extra_type, uint8_t* extra, uint8_t extra_len) override {
+    // TODO: prevent replay attacks
+    int i = matching_peer_indexes[sender_idx];
+
+    if (i >= 0 && i < num_clients) {  // get from our known_clients table (sender SHOULD already be known in this context)
+      MESH_DEBUG_PRINTLN("PATH to client, path_len=%d", (uint32_t) path_len);
+      auto client = &known_clients[i];
+      memcpy(client->out_path, path, client->out_path_len = path_len);  // store a copy of path, for sendDirect()
+    } else {
+      MESH_DEBUG_PRINTLN("onPeerPathRecv: invalid peer idx: %d", i);
+    }
+
+    if (extra_type == PAYLOAD_TYPE_ACK && extra_len >= 4) {
+      // also got an encoded ACK!
+      processAck(extra);
+    }
+
+    // NOTE: no reciprocal path send!!
+    return false;
+  }
+
+  void onAckRecv(mesh::Packet* packet, uint32_t ack_crc) override {
+    if (processAck((uint8_t *)&ack_crc)) {
+      packet->markDoNotRetransmit();   // ACK was for this node, so don't retransmit
+    }
+  }
+
+public:
+  MyMesh(mesh::MainBoard& board, RadioLibWrapper& radio, mesh::MillisecondClock& ms, mesh::RNG& rng, mesh::RTCClock& rtc, mesh::MeshTables& tables)
+     : mesh::Mesh(radio, ms, rng, rtc, *new StaticPoolPacketManager(32), tables), _board(&board)
+  {
+    my_radio = &radio;
+    next_local_advert = 0;
+
+    // defaults
+    memset(&_prefs, 0, sizeof(_prefs));
+    _prefs.airtime_factor = 1.0;    // one half
+    _prefs.rx_delay_base = 0.0f;   // off by default, was 10.0
+    _prefs.tx_delay_factor = 0.5f;   // was 0.25f;
+    StrHelper::strncpy(_prefs.node_name, ADVERT_NAME, sizeof(_prefs.node_name));
+    _prefs.node_lat = ADVERT_LAT;
+    _prefs.node_lon = ADVERT_LON;
+    StrHelper::strncpy(_prefs.password, ADMIN_PASSWORD, sizeof(_prefs.password));
+    _prefs.freq = LORA_FREQ;
+    _prefs.tx_power_dbm = LORA_TX_POWER;
+    _prefs.disable_fwd = 1;
+    _prefs.advert_interval = 2;  // default to 2 minutes for NEW installs
+  #ifdef ROOM_PASSWORD
+    StrHelper::strncpy(_prefs.guest_password, ROOM_PASSWORD, sizeof(_prefs.guest_password));
+  #endif
+
+    num_clients = 0;
+    next_post_idx = 0;
+    next_client_idx = 0;
+    next_push = 0;
+    memset(posts, 0, sizeof(posts));
+  }
+
+  float getFreqPref() const { return _prefs.freq; }
+  uint8_t getTxPowerPref() const { return _prefs.tx_power_dbm; }
+
+  void begin(FILESYSTEM* fs) {
+    mesh::Mesh::begin();
+    _fs = fs;
+    // load persisted prefs
+    if (_fs->exists("/node_prefs")) {
+      File file = _fs->open("/node_prefs");
+      if (file) {
+        file.read((uint8_t *) &_prefs, sizeof(_prefs));
+        file.close();
+      }
+    }
+
+    updateAdvertTimer();
+  }
+
+  void savePrefs() {
+#if defined(NRF52_PLATFORM)
+    File file = _fs->open("/node_prefs", FILE_O_WRITE);
+    if (file) { file.seek(0); file.truncate(); }
+#else
+    File file = _fs->open("/node_prefs", "w", true);
+#endif
+    if (file) {
+      file.write((const uint8_t *)&_prefs, sizeof(_prefs));
+      file.close();
+    }
+  }
+
+  void sendSelfAdvertisement(int delay_millis) {
+    mesh::Packet* pkt = createSelfAdvert();
+    if (pkt) {
+      sendFlood(pkt, delay_millis);
+    } else {
+      MESH_DEBUG_PRINTLN("ERROR: unable to create advertisement packet!");
+    }
+  }
+
+  void handleAdminCommand(uint32_t sender_timestamp, const char* command, char reply[]) {
+    while (*command == ' ') command++;   // skip leading spaces
+
+    if (memcmp(command, "reboot", 6) == 0) {
+      board.reboot();  // doesn't return
+    } else if (memcmp(command, "advert", 6) == 0) {
+      sendSelfAdvertisement(400);
+      strcpy(reply, "OK - Advert sent");
+    } else if (memcmp(command, "clock sync", 10) == 0) {
+      uint32_t curr = getRTCClock()->getCurrentTime();
+      if (sender_timestamp > curr) {
+        getRTCClock()->setCurrentTime(sender_timestamp + 1);
+        strcpy(reply, "OK - clock set");
+      } else {
+        strcpy(reply, "ERR: clock cannot go backwards");
+      }
+    } else if (memcmp(command, "start ota", 9) == 0) {
+      if (_board->startOTAUpdate()) {
+        strcpy(reply, "OK");
+      } else {
+        strcpy(reply, "Error");
+      }
+    } else if (memcmp(command, "clock", 5) == 0) {
+      uint32_t now = getRTCClock()->getCurrentTime();
+      DateTime dt = DateTime(now);
+      sprintf(reply, "%02d:%02d - %d/%d/%d UTC", dt.hour(), dt.minute(), dt.day(), dt.month(), dt.year());
+    } else if (memcmp(command, "time ", 5) == 0) {  // set time (to epoch seconds)
+      uint32_t secs = _atoi(&command[5]);
+      uint32_t curr = getRTCClock()->getCurrentTime();
+      if (secs > curr) {
+        getRTCClock()->setCurrentTime(secs);
+        strcpy(reply, "(OK - clock set!)");
+      } else {
+        strcpy(reply, "(ERR: clock cannot go backwards)");
+      }
+    } else if (memcmp(command, "password ", 9) == 0) {
+      // change admin password
+      StrHelper::strncpy(_prefs.password, &command[9], sizeof(_prefs.password));
+      savePrefs();
+      sprintf(reply, "password now: %s", _prefs.password);   // echo back just to let admin know for sure!!
+    } else if (memcmp(command, "set ", 4) == 0) {
+      const char* config = &command[4];
+      if (memcmp(config, "af ", 3) == 0) {
+        _prefs.airtime_factor = atof(&config[3]);
+        savePrefs();
+        strcpy(reply, "OK");
+      } else if (memcmp(config, "advert.interval ", 16) == 0) {
+        int mins = _atoi(&config[16]);
+        if (mins > 0 && mins < MIN_LOCAL_ADVERT_INTERVAL) {
+          sprintf(reply, "Error: min is %d mins", MIN_LOCAL_ADVERT_INTERVAL);
+        } else if (mins > 120) {
+          strcpy(reply, "Error: max is 120 mins");
+        } else {
+          _prefs.advert_interval = (uint8_t)mins;
+          updateAdvertTimer();
+          savePrefs();
+          strcpy(reply, "OK");
+        }
+      } else if (memcmp(config, "guest.password ", 15) == 0) {
+        StrHelper::strncpy(_prefs.guest_password, &config[15], sizeof(_prefs.guest_password));
+        savePrefs();
+        strcpy(reply, "OK");
+      } else if (memcmp(config, "name ", 5) == 0) {
+        StrHelper::strncpy(_prefs.node_name, &config[5], sizeof(_prefs.node_name));
+        savePrefs();
+        strcpy(reply, "OK");
+      } else if (memcmp(config, "repeat ", 7) == 0) {
+        _prefs.disable_fwd = memcmp(&config[7], "off", 3) == 0;
+        savePrefs();
+        strcpy(reply, _prefs.disable_fwd ? "OK - repeat is now OFF" : "OK - repeat is now ON");
+      } else if (memcmp(config, "lat ", 4) == 0) {
+        _prefs.node_lat = atof(&config[4]);
+        savePrefs();
+        strcpy(reply, "OK");
+      } else if (memcmp(config, "lon ", 4) == 0) {
+        _prefs.node_lon = atof(&config[4]);
+        savePrefs();
+        strcpy(reply, "OK");
+      } else if (memcmp(config, "rxdelay ", 8) == 0) {
+        float db = atof(&config[8]);
+        if (db >= 0) {
+          _prefs.rx_delay_base = db;
+          savePrefs();
+          strcpy(reply, "OK");
+        } else {
+          strcpy(reply, "Error, cannot be negative");
+        }
+      } else if (memcmp(config, "txdelay ", 8) == 0) {
+        float f = atof(&config[8]);
+        if (f >= 0) {
+          _prefs.tx_delay_factor = f;
+          savePrefs();
+          strcpy(reply, "OK");
+        } else {
+          strcpy(reply, "Error, cannot be negative");
+        }
+      } else if (memcmp(config, "direct.txdelay ", 15) == 0) {
+        float f = atof(&config[15]);
+        if (f >= 0) {
+          _prefs.direct_tx_delay_factor = f;
+          savePrefs();
+          strcpy(reply, "OK");
+        } else {
+          strcpy(reply, "Error, cannot be negative");
+        }
+      } else if (memcmp(config, "tx ", 3) == 0) {
+        _prefs.tx_power_dbm = atoi(&config[3]);
+        savePrefs();
+        strcpy(reply, "OK - reboot to apply");
+      } else if (sender_timestamp == 0 && memcmp(config, "freq ", 5) == 0) {
+        _prefs.freq = atof(&config[5]);
+        savePrefs();
+        strcpy(reply, "OK - reboot to apply");
+      } else {
+        sprintf(reply, "unknown config: %s", config);
+      }
+    } else if (memcmp(command, "ver", 3) == 0) {
+      strcpy(reply, FIRMWARE_VER_TEXT);
+    } else {
+      strcpy(reply, "?");   // unknown command
+    }
+  }
+
+  void loop() {
+    mesh::Mesh::loop();
+
+    if (millisHasNowPassed(next_push) && num_clients > 0) {
+      // check for ACK timeouts
+      for (int i = 0; i < num_clients; i++) {
+        auto c = &known_clients[i];
+        if (c->pending_ack && millisHasNowPassed(c->ack_timeout)) {
+          c->push_failures++;
+          c->pending_ack = 0;   // reset  (TODO: keep prev expected_ack's in a list, incase they arrive LATER, after we retry)
+          MESH_DEBUG_PRINTLN("pending ACK timed out: push_failures: %d", (uint32_t)c->push_failures);
+        }
+      }
+      // check next Round-Robin client, and sync next new post
+      auto client = &known_clients[next_client_idx];
+      if (client->pending_ack == 0 && client->last_activity != 0 && client->push_failures < 3) {  // not already waiting for ACK, AND not evicted, AND retries not max
+        MESH_DEBUG_PRINTLN("loop - checking for client %02X", (uint32_t) client->id.pub_key[0]);
+        for (int k = 0, idx = next_post_idx; k < MAX_UNSYNCED_POSTS; k++) {
+          if (posts[idx].post_timestamp > client->sync_since   // is new post for this Client?
+            && !posts[idx].author.matches(client->id)) {    // don't push posts to the author
+            // push this post to Client, then wait for ACK
+            pushPostToClient(client, posts[idx]);
+            MESH_DEBUG_PRINTLN("loop - pushed to client %02X: %s", (uint32_t) client->id.pub_key[0], posts[idx].text);
+            break;
+          }
+          idx = (idx + 1) % MAX_UNSYNCED_POSTS;   // wrap to start of cyclic queue
+        }
+      } else {
+        MESH_DEBUG_PRINTLN("loop - skipping busy (or evicted) client %02X", (uint32_t) client->id.pub_key[0]);
+      }
+      next_client_idx = (next_client_idx + 1) % num_clients;  // round robin polling for each client
+
+      next_push = futureMillis(SYNC_PUSH_INTERVAL);
+    }
+
+    if (next_local_advert && millisHasNowPassed(next_local_advert)) {
+      mesh::Packet* pkt = createSelfAdvert();
+      if (pkt) {
+        sendZeroHop(pkt);
+      }
+
+      updateAdvertTimer();   // schedule next local advert
+    }
+
+    // TODO: periodically check for OLD/inactive entries in known_clients[], and evict
+  }
+};
+
+#if defined(NRF52_PLATFORM)
+RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY, SPI);
+#elif defined(P_LORA_SCLK)
+SPIClass spi;
+RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY, spi);
+#else
+RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY);
+#endif
+StdRNG fast_rng;
+SimpleMeshTables tables;
+
+#ifdef ESP32
+ESP32RTCClock fallback_clock;
+#else
+VolatileRTCClock fallback_clock; 
+#endif
+AutoDiscoverRTCClock rtc_clock(fallback_clock);
+
+MyMesh the_mesh(board, *new WRAPPER_CLASS(radio, board), *new ArduinoMillis(), fast_rng, rtc_clock, tables);
+
+void halt() {
+  while (1) ;
+}
+
+static char command[MAX_POST_TEXT_LEN+1];
+
+void setup() {
+  Serial.begin(115200);
+  delay(1000);
+
+  board.begin();
+#ifdef ESP32
+  fallback_clock.begin();
+#endif
+  rtc_clock.begin(Wire);
+
+#ifdef SX126X_DIO3_TCXO_VOLTAGE
+  float tcxo = SX126X_DIO3_TCXO_VOLTAGE;
+#else
+  float tcxo = 1.6f;
+#endif
+
+#if defined(NRF52_PLATFORM)
+  SPI.setPins(P_LORA_MISO, P_LORA_SCLK, P_LORA_MOSI);
+  SPI.begin();
+#elif defined(P_LORA_SCLK)
+  spi.begin(P_LORA_SCLK, P_LORA_MISO, P_LORA_MOSI);
+#endif
+  int status = radio.begin(LORA_FREQ, LORA_BW, LORA_SF, LORA_CR, RADIOLIB_SX126X_SYNC_WORD_PRIVATE, LORA_TX_POWER, 8, tcxo);
+  if (status != RADIOLIB_ERR_NONE) {
+    delay(5000);
+    Serial.print("ERROR: radio init failed: ");
+    Serial.println(status);
+    halt();
+  }
+
+  radio.setCRC(0);
+
+#ifdef SX126X_CURRENT_LIMIT
+  radio.setCurrentLimit(SX126X_CURRENT_LIMIT);
+#endif
+
+#ifdef SX126X_DIO2_AS_RF_SWITCH
+  radio.setDio2AsRfSwitch(SX126X_DIO2_AS_RF_SWITCH);
+#endif
+
+  fast_rng.begin(radio.random(0x7FFFFFFF));
+
+  FILESYSTEM* fs;
+#if defined(NRF52_PLATFORM)
+  InternalFS.begin();
+  fs = &InternalFS;
+  IdentityStore store(InternalFS, "");
+#elif defined(ESP32)
+  SPIFFS.begin(true);
+  fs = &SPIFFS;
+  IdentityStore store(SPIFFS, "/identity");
+#else
+  #error "need to define filesystem"
+#endif
+  if (!store.load("_main", the_mesh.self_id)) {
+    RadioNoiseListener rng(radio);
+    the_mesh.self_id = mesh::LocalIdentity(&rng);  // create new random identity
+    store.save("_main", the_mesh.self_id);
+  }
+
+  Serial.print("Room ID: ");
+  mesh::Utils::printHex(Serial, the_mesh.self_id.pub_key, PUB_KEY_SIZE); Serial.println();
+
+  command[0] = 0;
+
+  the_mesh.begin(fs);
+
+  if (LORA_FREQ != the_mesh.getFreqPref()) {
+    radio.setFrequency(the_mesh.getFreqPref());
+  }
+  if (LORA_TX_POWER != the_mesh.getTxPowerPref()) {
+    radio.setOutputPower(the_mesh.getTxPowerPref());
+  }
+
+  // send out initial Advertisement to the mesh
+  the_mesh.sendSelfAdvertisement(2000);
+}
+
+void loop() {
+  int len = strlen(command);
+  while (Serial.available() && len < sizeof(command)-1) {
+    char c = Serial.read();
+    if (c != '\n') { 
+      command[len++] = c;
+      command[len] = 0;
+    }
+    Serial.print(c);
+  }
+  if (len == sizeof(command)-1) {  // command buffer full
+    command[sizeof(command)-1] = '\r';
+  }
+
+  if (len > 0 && command[len - 1] == '\r') {  // received complete line
+    command[len - 1] = 0;  // replace newline with C string null terminator
+    char reply[160];
+    the_mesh.handleAdminCommand(0, command, reply);  // NOTE: there is no sender_timestamp via serial!
+    if (reply[0]) {
+      Serial.print("  -> "); Serial.println(reply);
+    }
+
+    command[0] = 0;  // reset command buffer
+  }
+
+  the_mesh.loop();
+}
@@ -0,0 +1,613 @@
+#include <Arduino.h>   // needed for PlatformIO
+#include <Mesh.h>
+
+#if defined(NRF52_PLATFORM)
+  #include <InternalFileSystem.h>
+#elif defined(ESP32)
+  #include <SPIFFS.h>
+#endif
+
+#define RADIOLIB_STATIC_ONLY 1
+#include <RadioLib.h>
+#include <helpers/RadioLibWrappers.h>
+#include <helpers/ArduinoHelpers.h>
+#include <helpers/StaticPoolPacketManager.h>
+#include <helpers/SimpleMeshTables.h>
+#include <helpers/IdentityStore.h>
+#include <RTClib.h>
+
+/* ---------------------------------- CONFIGURATION ------------------------------------- */
+
+#define FIRMWARE_VER_TEXT   "v2 (build: 4 Feb 2025)"
+
+#ifndef LORA_FREQ
+  #define LORA_FREQ   915.0
+#endif
+#ifndef LORA_BW
+  #define LORA_BW     250
+#endif
+#ifndef LORA_SF
+  #define LORA_SF     10
+#endif
+#ifndef LORA_CR
+  #define LORA_CR      5
+#endif
+#ifndef LORA_TX_POWER
+  #define LORA_TX_POWER  20
+#endif
+
+#ifndef MAX_CONTACTS
+  #define MAX_CONTACTS         100
+#endif
+
+#include <helpers/BaseChatMesh.h>
+
+#define SEND_TIMEOUT_BASE_MILLIS          500
+#define FLOOD_SEND_TIMEOUT_FACTOR         16.0f
+#define DIRECT_SEND_PERHOP_FACTOR         6.0f
+#define DIRECT_SEND_PERHOP_EXTRA_MILLIS   250
+
+#define  PUBLIC_GROUP_PSK  "izOH6cXN6mrJ5e26oRXNcg=="
+
+#if defined(HELTEC_LORA_V3)
+  #include <helpers/HeltecV3Board.h>
+  #include <helpers/CustomSX1262Wrapper.h>
+  static HeltecV3Board board;
+#elif defined(HELTEC_LORA_V2)
+  #include <helpers/HeltecV2Board.h>
+  #include <helpers/CustomSX1276Wrapper.h>
+  static HeltecV2Board board;
+#elif defined(ARDUINO_XIAO_ESP32C3)
+  #include <helpers/XiaoC3Board.h>
+  #include <helpers/CustomSX1262Wrapper.h>
+  #include <helpers/CustomSX1268Wrapper.h>
+  static XiaoC3Board board;
+#elif defined(SEEED_XIAO_S3) || defined(LILYGO_T3S3)
+  #include <helpers/ESP32Board.h>
+  #include <helpers/CustomSX1262Wrapper.h>
+  static ESP32Board board;
+#elif defined(RAK_4631)
+  #include <helpers/nrf52/RAK4631Board.h>
+  #include <helpers/CustomSX1262Wrapper.h>
+  static RAK4631Board board;
+#elif defined(T1000_E)
+  #include <helpers/nrf52/T1000eBoard.h>
+  #include <helpers/CustomLR1110Wrapper.h>
+  static T1000eBoard board;
+#else
+  #error "need to provide a 'board' object"
+#endif
+
+// Believe it or not, this std C function is busted on some platforms!
+static uint32_t _atoi(const char* sp) {
+  uint32_t n = 0;
+  while (*sp && *sp >= '0' && *sp <= '9') {
+    n *= 10;
+    n += (*sp++ - '0');
+  }
+  return n;
+}
+
+/* -------------------------------------------------------------------------------------- */
+
+struct NodePrefs {  // persisted to file
+  float airtime_factor;
+  char node_name[32];
+  double node_lat, node_lon;
+  float freq;
+  uint8_t tx_power_dbm;
+  uint8_t unused[3];
+};
+
+class MyMesh : public BaseChatMesh, ContactVisitor {
+  FILESYSTEM* _fs;
+  NodePrefs _prefs;
+  uint32_t expected_ack_crc;
+  mesh::GroupChannel* _public;
+  unsigned long last_msg_sent;
+  ContactInfo* curr_recipient;
+  char command[512+10];
+  uint8_t tmp_buf[256];
+  char hex_buf[512];
+
+  const char* getTypeName(uint8_t type) const {
+    if (type == ADV_TYPE_CHAT) return "Chat";
+    if (type == ADV_TYPE_REPEATER) return "Repeater";
+    if (type == ADV_TYPE_ROOM) return "Room";
+    return "??";  // unknown
+  }
+
+  void loadContacts() {
+    if (_fs->exists("/contacts")) {
+      File file = _fs->open("/contacts");
+      if (file) {
+        bool full = false;
+        while (!full) {
+          ContactInfo c;
+          uint8_t pub_key[32];
+          uint8_t unused;
+          uint32_t reserved;
+
+          bool success = (file.read(pub_key, 32) == 32);
+          success = success && (file.read((uint8_t *) &c.name, 32) == 32);
+          success = success && (file.read(&c.type, 1) == 1);
+          success = success && (file.read(&c.flags, 1) == 1);
+          success = success && (file.read(&unused, 1) == 1);
+          success = success && (file.read((uint8_t *) &reserved, 4) == 4);
+          success = success && (file.read((uint8_t *) &c.out_path_len, 1) == 1);
+          success = success && (file.read((uint8_t *) &c.last_advert_timestamp, 4) == 4);
+          success = success && (file.read(c.out_path, 64) == 64);
+          c.gps_lat = c.gps_lon = 0;   // not yet supported
+
+          if (!success) break;  // EOF
+
+          c.id = mesh::Identity(pub_key);
+          c.lastmod = 0;
+          if (!addContact(c)) full = true;
+        }
+        file.close();
+      }
+    }
+  }
+
+  void saveContacts() {
+#if defined(NRF52_PLATFORM)
+    File file = _fs->open("/contacts", FILE_O_WRITE);
+    if (file) { file.seek(0); file.truncate(); }
+#else
+    File file = _fs->open("/contacts", "w", true);
+#endif
+    if (file) {
+      ContactsIterator iter;
+      ContactInfo c;
+      uint8_t unused = 0;
+      uint32_t reserved = 0;
+
+      while (iter.hasNext(this, c)) {
+        bool success = (file.write(c.id.pub_key, 32) == 32);
+        success = success && (file.write((uint8_t *) &c.name, 32) == 32);
+        success = success && (file.write(&c.type, 1) == 1);
+        success = success && (file.write(&c.flags, 1) == 1);
+        success = success && (file.write(&unused, 1) == 1);
+        success = success && (file.write((uint8_t *) &reserved, 4) == 4);
+        success = success && (file.write((uint8_t *) &c.out_path_len, 1) == 1);
+        success = success && (file.write((uint8_t *) &c.last_advert_timestamp, 4) == 4);
+        success = success && (file.write(c.out_path, 64) == 64);
+
+        if (!success) break;  // write failed
+      }
+      file.close();
+    }
+  }
+
+  void setClock(uint32_t timestamp) {
+    uint32_t curr = getRTCClock()->getCurrentTime();
+    if (timestamp > curr) {
+      getRTCClock()->setCurrentTime(timestamp);
+      Serial.println("   (OK - clock set!)");
+    } else {
+      Serial.println("   (ERR: clock cannot go backwards)");
+    }
+  }
+
+  void importCard(const char* command) {
+    while (*command == ' ') command++;   // skip leading spaces
+    if (memcmp(command, "meshcore://", 11) == 0) {
+      command += 11;  // skip the prefix
+      char *ep = strchr(command, 0);  // find end of string
+      while (ep > command) {
+        ep--;
+        if (mesh::Utils::isHexChar(*ep)) break;  // found tail end of card
+        *ep = 0;  // remove trailing spaces and other junk
+      }
+      int len = strlen(command);
+      if (len % 2 == 0) {
+        len >>= 1;  // halve, for num bytes
+        if (mesh::Utils::fromHex(tmp_buf, len, command)) {
+          importContact(tmp_buf, len);
+          return;
+        }
+      }
+    }
+    Serial.println("   error: invalid format");
+  }
+
+protected:
+  float getAirtimeBudgetFactor() const override {
+    return _prefs.airtime_factor;
+  }
+
+  int calcRxDelay(float score, uint32_t air_time) const override {
+    return 0;  // disable rxdelay
+  }
+
+  void onDiscoveredContact(ContactInfo& contact, bool is_new) override {
+    // TODO: if not in favs,  prompt to add as fav(?)
+
+    Serial.printf("ADVERT from -> %s\n", contact.name);
+    Serial.printf("  type: %s\n", getTypeName(contact.type));
+    Serial.print("   public key: "); mesh::Utils::printHex(Serial, contact.id.pub_key, PUB_KEY_SIZE); Serial.println();
+
+    saveContacts();
+  }
+
+  void onContactPathUpdated(const ContactInfo& contact) override {
+    Serial.printf("PATH to: %s, path_len=%d\n", contact.name, (int32_t) contact.out_path_len);
+    saveContacts();
+  }
+
+  bool processAck(const uint8_t *data) override {
+    if (memcmp(data, &expected_ack_crc, 4) == 0) {     // got an ACK from recipient
+      Serial.printf("   Got ACK! (round trip: %d millis)\n", _ms->getMillis() - last_msg_sent);
+      // NOTE: the same ACK can be received multiple times!
+      expected_ack_crc = 0;  // reset our expected hash, now that we have received ACK
+      return true;
+    }
+
+    //uint32_t crc;
+    //memcpy(&crc, data, 4);
+    //MESH_DEBUG_PRINTLN("unknown ACK received: %08X (expected: %08X)", crc, expected_ack_crc);
+    return false;
+  }
+
+  void onMessageRecv(const ContactInfo& from, uint8_t path_len, uint32_t sender_timestamp, const char *text) override {
+    Serial.printf("(%s) MSG -> from %s\n", path_len == 0xFF ? "DIRECT" : "FLOOD", from.name);
+    Serial.printf("   %s\n", text);
+
+    if (strcmp(text, "clock sync") == 0) {  // special text command
+      setClock(sender_timestamp + 1);
+    }
+  }
+
+  void onChannelMessageRecv(const mesh::GroupChannel& channel, int in_path_len, uint32_t timestamp, const char *text) override {
+    if (in_path_len < 0) {
+      Serial.printf("PUBLIC CHANNEL MSG -> (Direct!)\n");
+    } else {
+      Serial.printf("PUBLIC CHANNEL MSG -> (Flood) hops %d\n", in_path_len);
+    }
+    Serial.printf("   %s\n", text);
+  }
+
+  void onContactResponse(const ContactInfo& contact, const uint8_t* data, uint8_t len) override {
+    // not supported
+  }
+
+  uint32_t calcFloodTimeoutMillisFor(uint32_t pkt_airtime_millis) const override {
+    return SEND_TIMEOUT_BASE_MILLIS + (FLOOD_SEND_TIMEOUT_FACTOR * pkt_airtime_millis);
+  }
+  uint32_t calcDirectTimeoutMillisFor(uint32_t pkt_airtime_millis, uint8_t path_len) const override {
+    return SEND_TIMEOUT_BASE_MILLIS + 
+         ( (pkt_airtime_millis*DIRECT_SEND_PERHOP_FACTOR + DIRECT_SEND_PERHOP_EXTRA_MILLIS) * (path_len + 1));
+  }
+
+  void onSendTimeout() override {
+    Serial.println("   ERROR: timed out, no ACK.");
+  }
+
+public:
+
+  MyMesh(RadioLibWrapper& radio, mesh::RNG& rng, mesh::RTCClock& rtc, SimpleMeshTables& tables)
+     : BaseChatMesh(radio, *new ArduinoMillis(), rng, rtc, *new StaticPoolPacketManager(16), tables)
+  {
+    // defaults
+    memset(&_prefs, 0, sizeof(_prefs));
+    _prefs.airtime_factor = 2.0;    // one third
+    strcpy(_prefs.node_name, "NONAME");
+    _prefs.freq = LORA_FREQ;
+    _prefs.tx_power_dbm = LORA_TX_POWER;
+
+    command[0] = 0;
+    curr_recipient = NULL;
+  }
+
+  float getFreqPref() const { return _prefs.freq; }
+  uint8_t getTxPowerPref() const { return _prefs.tx_power_dbm; }
+
+  void begin(FILESYSTEM& fs) {
+    _fs = &fs;
+
+    BaseChatMesh::begin();
+
+  #if defined(NRF52_PLATFORM)
+    IdentityStore store(fs, "");
+  #else
+    IdentityStore store(fs, "/identity");
+  #endif
+    if (!store.load("_main", self_id, _prefs.node_name, sizeof(_prefs.node_name))) {  // legacy: node_name was from identity file
+      self_id = mesh::LocalIdentity(getRNG());  // create new random identity
+      store.save("_main", self_id);
+    }
+
+    // load persisted prefs
+    if (_fs->exists("/node_prefs")) {
+      File file = _fs->open("/node_prefs");
+      if (file) {
+        file.read((uint8_t *) &_prefs, sizeof(_prefs));
+        file.close();
+      }
+    }
+
+    loadContacts();
+    _public = addChannel(PUBLIC_GROUP_PSK); // pre-configure Andy's public channel
+  }
+
+  void savePrefs() {
+#if defined(NRF52_PLATFORM)
+    File file = _fs->open("/node_prefs", FILE_O_WRITE);
+    if (file) { file.seek(0); file.truncate(); }
+#else
+    File file = _fs->open("/node_prefs", "w", true);
+#endif
+    if (file) {
+      file.write((const uint8_t *)&_prefs, sizeof(_prefs));
+      file.close();
+    }
+  }
+
+  void showWelcome() {
+    Serial.println("===== MeshCore Chat Terminal =====");
+    Serial.println();
+    Serial.printf("WELCOME  %s\n", _prefs.node_name);
+    Serial.println("   (enter 'help' for basic commands)");
+    Serial.println();
+  }
+
+  void sendSelfAdvert(int delay_millis) {
+    auto pkt = createSelfAdvert(_prefs.node_name, _prefs.node_lat, _prefs.node_lon);
+    if (pkt) {
+      sendFlood(pkt, delay_millis);
+    }
+  }
+
+  // ContactVisitor
+  void onContactVisit(const ContactInfo& contact) override {
+    Serial.printf("   %s - ", contact.name);
+    char tmp[40];
+    int32_t secs = contact.last_advert_timestamp - getRTCClock()->getCurrentTime();
+    AdvertTimeHelper::formatRelativeTimeDiff(tmp, secs, false);
+    Serial.println(tmp);
+  }
+
+  void handleCommand(const char* command) {
+    while (*command == ' ') command++;  // skip leading spaces
+
+    if (memcmp(command, "send ", 5) == 0) {
+      if (curr_recipient) {
+        const char *text = &command[5];
+        uint32_t est_timeout;
+
+        int result = sendMessage(*curr_recipient, getRTCClock()->getCurrentTime(), 0, text, expected_ack_crc, est_timeout);
+        if (result == MSG_SEND_FAILED) {
+          Serial.println("   ERROR: unable to send.");
+        } else {
+          last_msg_sent = _ms->getMillis();
+          Serial.printf("   (message sent - %s)\n", result == MSG_SEND_SENT_FLOOD ? "FLOOD" : "DIRECT");
+        }
+      } else {
+        Serial.println("   ERROR: no recipient selected (use 'to' cmd).");
+      }
+    } else if (memcmp(command, "public ", 7) == 0) {  // send GroupChannel msg
+      uint8_t temp[5+MAX_TEXT_LEN+32];
+      uint32_t timestamp = getRTCClock()->getCurrentTime();
+      memcpy(temp, &timestamp, 4);   // mostly an extra blob to help make packet_hash unique
+      temp[4] = 0;  // attempt and flags
+
+      sprintf((char *) &temp[5], "%s: %s", _prefs.node_name, &command[7]);  // <sender>: <msg>
+      temp[5 + MAX_TEXT_LEN] = 0;  // truncate if too long
+
+      int len = strlen((char *) &temp[5]);
+      auto pkt = createGroupDatagram(PAYLOAD_TYPE_GRP_TXT, *_public, temp, 5 + len);
+      if (pkt) {
+        sendFlood(pkt);
+        Serial.println("   Sent.");
+      } else {
+        Serial.println("   ERROR: unable to send");
+      }
+    } else if (memcmp(command, "list", 4) == 0) {  // show Contact list, by most recent
+      int n = 0;
+      if (command[4] == ' ') {  // optional param, last 'N'
+        n = atoi(&command[5]);
+      }
+      scanRecentContacts(n, this);
+    } else if (strcmp(command, "clock") == 0) {    // show current time
+      uint32_t now = getRTCClock()->getCurrentTime();
+      DateTime dt = DateTime(now);
+      Serial.printf(   "%02d:%02d - %d/%d/%d UTC\n", dt.hour(), dt.minute(), dt.day(), dt.month(), dt.year());
+    } else if (memcmp(command, "time ", 5) == 0) {  // set time (to epoch seconds)
+      uint32_t secs = _atoi(&command[5]);
+      setClock(secs);
+    } else if (memcmp(command, "to ", 3) == 0) {  // set current recipient
+      curr_recipient = searchContactsByPrefix(&command[3]);
+      if (curr_recipient) {
+        Serial.printf("   Recipient %s now selected.\n", curr_recipient->name);
+      } else {
+        Serial.println("   Error: Name prefix not found.");
+      }
+    } else if (strcmp(command, "to") == 0) {    // show current recipient
+      if (curr_recipient) {
+         Serial.printf("   Current: %s\n", curr_recipient->name);
+      } else {
+         Serial.println("   Err: no recipient selected");
+      }
+    } else if (strcmp(command, "advert") == 0) {
+      auto pkt = createSelfAdvert(_prefs.node_name, _prefs.node_lat, _prefs.node_lon);
+      if (pkt) {
+        sendZeroHop(pkt);
+        Serial.println("   (advert sent, zero hop).");
+      } else {
+        Serial.println("   ERR: unable to send");
+      }
+    } else if (strcmp(command, "reset path") == 0) {
+      if (curr_recipient) {
+        resetPathTo(*curr_recipient);
+        saveContacts();
+        Serial.println("   Done.");
+      }
+    } else if (memcmp(command, "card", 4) == 0) {
+      Serial.printf("Hello %s\n", _prefs.node_name);
+      auto pkt = createSelfAdvert(_prefs.node_name, _prefs.node_lat, _prefs.node_lon);
+      if (pkt) {
+        uint8_t len =  pkt->writeTo(tmp_buf);
+        releasePacket(pkt);  // undo the obtainNewPacket()
+
+        mesh::Utils::toHex(hex_buf, tmp_buf, len);
+        Serial.println("Your MeshCore biz card:");
+        Serial.print("meshcore://"); Serial.println(hex_buf);
+        Serial.println();
+      } else {
+        Serial.println("  Error");
+      }
+    } else if (memcmp(command, "import ", 7) == 0) {
+      importCard(&command[7]);
+    } else if (memcmp(command, "set ", 4) == 0) {
+      const char* config = &command[4];
+      if (memcmp(config, "af ", 3) == 0) {
+        _prefs.airtime_factor = atof(&config[3]);
+        savePrefs();
+        Serial.println("  OK");
+      } else if (memcmp(config, "name ", 5) == 0) {
+        StrHelper::strncpy(_prefs.node_name, &config[5], sizeof(_prefs.node_name));
+        savePrefs();
+        Serial.println("  OK");
+      } else if (memcmp(config, "lat ", 4) == 0) {
+        _prefs.node_lat = atof(&config[4]);
+        savePrefs();
+        Serial.println("  OK");
+      } else if (memcmp(config, "lon ", 4) == 0) {
+        _prefs.node_lon = atof(&config[4]);
+        savePrefs();
+        Serial.println("  OK");
+      } else if (memcmp(config, "tx ", 3) == 0) {
+        _prefs.tx_power_dbm = atoi(&config[3]);
+        savePrefs();
+        Serial.println("  OK - reboot to apply");
+      } else if (memcmp(config, "freq ", 5) == 0) {
+        _prefs.freq = atof(&config[5]);
+        savePrefs();
+        Serial.println("  OK - reboot to apply");
+      } else {
+        Serial.printf("  ERROR: unknown config: %s\n", config);
+      }
+    } else if (memcmp(command, "ver", 3) == 0) {
+      Serial.println(FIRMWARE_VER_TEXT);
+    } else if (memcmp(command, "help", 4) == 0) {
+      Serial.println("Commands:");
+      Serial.println("   set {name|lat|lon|freq|tx|af} {value}");
+      Serial.println("   card");
+      Serial.println("   import {biz card}");
+      Serial.println("   clock");
+      Serial.println("   time <epoch-seconds>");
+      Serial.println("   list {n}");
+      Serial.println("   to <recipient name or prefix>");
+      Serial.println("   to");
+      Serial.println("   send <text>");
+      Serial.println("   advert");
+      Serial.println("   reset path");
+      Serial.println("   public <text>");
+    } else {
+      Serial.print("   ERROR: unknown command: "); Serial.println(command);
+    }
+  }
+
+  void loop() {
+    BaseChatMesh::loop();
+
+    int len = strlen(command);
+    while (Serial.available() && len < sizeof(command)-1) {
+      char c = Serial.read();
+      if (c != '\n') { 
+        command[len++] = c;
+        command[len] = 0;
+      }
+      Serial.print(c);
+    }
+    if (len == sizeof(command)-1) {  // command buffer full
+      command[sizeof(command)-1] = '\r';
+    }
+
+    if (len > 0 && command[len - 1] == '\r') {  // received complete line
+      command[len - 1] = 0;  // replace newline with C string null terminator
+
+      handleCommand(command);
+      command[0] = 0;  // reset command buffer
+    }
+  }
+};
+
+#if defined(NRF52_PLATFORM)
+RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY, SPI);
+#elif defined(P_LORA_SCLK)
+SPIClass spi;
+RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY, spi);
+#else
+RADIO_CLASS radio = new Module(P_LORA_NSS, P_LORA_DIO_1, P_LORA_RESET, P_LORA_BUSY);
+#endif
+StdRNG fast_rng;
+SimpleMeshTables tables;
+MyMesh the_mesh(*new WRAPPER_CLASS(radio, board), fast_rng, *new VolatileRTCClock(), tables);
+
+void halt() {
+  while (1) ;
+}
+
+void setup() {
+  Serial.begin(115200);
+
+  board.begin();
+#ifdef SX126X_DIO3_TCXO_VOLTAGE
+  float tcxo = SX126X_DIO3_TCXO_VOLTAGE;
+#else
+  float tcxo = 1.6f;
+#endif
+
+#if defined(NRF52_PLATFORM)
+  SPI.setPins(P_LORA_MISO, P_LORA_SCLK, P_LORA_MOSI);
+  SPI.begin();
+#elif defined(P_LORA_SCLK)
+  spi.begin(P_LORA_SCLK, P_LORA_MISO, P_LORA_MOSI);
+#endif
+  int status = radio.begin(LORA_FREQ, LORA_BW, LORA_SF, LORA_CR, RADIOLIB_SX126X_SYNC_WORD_PRIVATE, LORA_TX_POWER, 8, tcxo);
+  if (status != RADIOLIB_ERR_NONE) {
+    Serial.print("ERROR: radio init failed: ");
+    Serial.println(status);
+    halt();
+  }
+
+  radio.setCRC(0);
+
+#ifdef SX126X_CURRENT_LIMIT
+  radio.setCurrentLimit(SX126X_CURRENT_LIMIT);
+#endif
+
+#ifdef SX126X_DIO2_AS_RF_SWITCH
+  radio.setDio2AsRfSwitch(SX126X_DIO2_AS_RF_SWITCH);
+#endif
+
+  fast_rng.begin(radio.random(0x7FFFFFFF));
+
+#if defined(NRF52_PLATFORM)
+  InternalFS.begin();
+  the_mesh.begin(InternalFS);
+#elif defined(ESP32)
+  SPIFFS.begin(true);
+  the_mesh.begin(SPIFFS);
+#else
+  #error "need to define filesystem"
+#endif
+
+  if (LORA_FREQ != the_mesh.getFreqPref()) {
+    radio.setFrequency(the_mesh.getFreqPref());
+  }
+  if (LORA_TX_POWER != the_mesh.getTxPowerPref()) {
+    radio.setOutputPower(the_mesh.getTxPowerPref());
+  }
+
+  the_mesh.showWelcome();
+
+  // send out initial Advertisement to the mesh
+  the_mesh.sendSelfAdvert(1200);   // add slight delay
+}
+
+void loop() {
+  the_mesh.loop();
+}
@@ -0,0 +1,39 @@
+
+This directory is intended for project header files.
+
+A header file is a file containing C declarations and macro definitions
+to be shared between several project source files. You request the use of a
+header file in your project source file (C, C++, etc) located in `src` folder
+by including it, with the C preprocessing directive `#include'.
+
+```src/main.c
+
+#include "header.h"
+
+int main (void)
+{
+ ...
+}
+```
+
+Including a header file produces the same results as copying the header file
+into each source file that needs it. Such copying would be time-consuming
+and error-prone. With a header file, the related declarations appear
+in only one place. If they need to be changed, they can be changed in one
+place, and programs that include the header file will automatically use the
+new version when next recompiled. The header file eliminates the labor of
+finding and changing all the copies as well as the risk that a failure to
+find one copy will result in inconsistencies within a program.
+
+In C, the usual convention is to give header files names that end with `.h'.
+It is most portable to use only letters, digits, dashes, and underscores in
+header file names, and at most one dot.
+
+Read more about using header files in official GCC documentation:
+
+* Include Syntax
+* Include Operation
+* Once-Only Headers
+* Computed Includes
+
+https://gcc.gnu.org/onlinedocs/cpp/Header-Files.html
@@ -1,694 +0,0 @@
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@@ -0,0 +1,46 @@
+
+This directory is intended for project specific (private) libraries.
+PlatformIO will compile them to static libraries and link into executable file.
+
+The source code of each library should be placed in a an own separate directory
+("lib/your_library_name/[here are source files]").
+
+For example, see a structure of the following two libraries `Foo` and `Bar`:
+
+|--lib
+|  |
+|  |--Bar
+|  |  |--docs
+|  |  |--examples
+|  |  |--src
+|  |     |- Bar.c
+|  |     |- Bar.h
+|  |  |- library.json (optional, custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html
+|  |
+|  |--Foo
+|  |  |- Foo.c
+|  |  |- Foo.h
+|  |
+|  |- README --> THIS FILE
+|
+|- platformio.ini
+|--src
+   |- main.c
+
+and a contents of `src/main.c`:
+```
+#include <Foo.h>
+#include <Bar.h>
+
+int main (void)
+{
+  ...
+}
+
+```
+
+PlatformIO Library Dependency Finder will find automatically dependent
+libraries scanning project source files.
+
+More information about PlatformIO Library Dependency Finder
+- https://docs.platformio.org/page/librarymanager/ldf.html
@@ -0,0 +1,69 @@
+#include "ed_25519.h"
+#include "ge.h"
+#include "sc.h"
+#include "sha512.h"
+
+
+/* see http://crypto.stackexchange.com/a/6215/4697 */
+void ed25519_add_scalar(unsigned char *public_key, unsigned char *private_key, const unsigned char *scalar) {
+    const unsigned char SC_1[32] = {1}; /* scalar with value 1 */
+    
+    unsigned char n[32]; 
+    ge_p3 nB;
+    ge_p1p1 A_p1p1;
+    ge_p3 A;
+    ge_p3 public_key_unpacked;
+    ge_cached T;
+
+    sha512_context hash;
+    unsigned char hashbuf[64];
+
+    int i;
+
+    /* copy the scalar and clear highest bit */
+    for (i = 0; i < 31; ++i) {
+        n[i] = scalar[i];
+    }
+    n[31] = scalar[31] & 127;
+
+    /* private key: a = n + t */
+    if (private_key) {
+        sc_muladd(private_key, SC_1, n, private_key);
+
+        // https://github.com/orlp/ed25519/issues/3
+        sha512_init(&hash);
+        sha512_update(&hash, private_key + 32, 32);
+        sha512_update(&hash, scalar, 32);
+        sha512_final(&hash, hashbuf);
+        for (i = 0; i < 32; ++i) {
+            private_key[32 + i] = hashbuf[i];
+        }
+    }
+
+    /* public key: A = nB + T */
+    if (public_key) {
+        /* if we know the private key we don't need a point addition, which is faster */
+        /* using a "timing attack" you could find out wether or not we know the private
+           key, but this information seems rather useless - if this is important pass
+           public_key and private_key seperately in 2 function calls */
+        if (private_key) {
+            ge_scalarmult_base(&A, private_key);
+        } else {
+            /* unpack public key into T */
+            ge_frombytes_negate_vartime(&public_key_unpacked, public_key);
+            fe_neg(public_key_unpacked.X, public_key_unpacked.X); /* undo negate */
+            fe_neg(public_key_unpacked.T, public_key_unpacked.T); /* undo negate */
+            ge_p3_to_cached(&T, &public_key_unpacked);
+
+            /* calculate n*B */
+            ge_scalarmult_base(&nB, n);
+
+            /* A = n*B + T */
+            ge_add(&A_p1p1, &nB, &T);
+            ge_p1p1_to_p3(&A, &A_p1p1);
+        }
+            
+        /* pack public key */
+        ge_p3_tobytes(public_key, &A);
+    }
+}
@@ -0,0 +1,41 @@
+#ifndef ED25519_H
+#define ED25519_H
+
+// Nightcracker's Ed25519 -  https://github.com/orlp/ed25519
+
+#include <stddef.h>
+
+#if defined(_WIN32)
+    #if defined(ED25519_BUILD_DLL)
+        #define ED25519_DECLSPEC __declspec(dllexport)
+    #elif defined(ED25519_DLL)
+        #define ED25519_DECLSPEC __declspec(dllimport)
+    #else
+        #define ED25519_DECLSPEC
+    #endif
+#else
+    #define ED25519_DECLSPEC
+#endif
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef ED25519_NO_SEED
+int ED25519_DECLSPEC ed25519_create_seed(unsigned char *seed);
+#endif
+
+void ED25519_DECLSPEC ed25519_create_keypair(unsigned char *public_key, unsigned char *private_key, const unsigned char *seed);
+void ED25519_DECLSPEC ed25519_derive_pub(unsigned char *public_key, const unsigned char *private_key);
+void ED25519_DECLSPEC ed25519_sign(unsigned char *signature, const unsigned char *message, size_t message_len, const unsigned char *public_key, const unsigned char *private_key);
+int ED25519_DECLSPEC ed25519_verify(const unsigned char *signature, const unsigned char *message, size_t message_len, const unsigned char *public_key);
+void ED25519_DECLSPEC ed25519_add_scalar(unsigned char *public_key, unsigned char *private_key, const unsigned char *scalar);
+void ED25519_DECLSPEC ed25519_key_exchange(unsigned char *shared_secret, const unsigned char *public_key, const unsigned char *private_key);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
@@ -0,0 +1,41 @@
+#ifndef FE_H
+#define FE_H
+
+#include "fixedint.h"
+
+
+/*
+    fe means field element.
+    Here the field is \Z/(2^255-19).
+    An element t, entries t[0]...t[9], represents the integer
+    t[0]+2^26 t[1]+2^51 t[2]+2^77 t[3]+2^102 t[4]+...+2^230 t[9].
+    Bounds on each t[i] vary depending on context.
+*/
+
+
+typedef int32_t fe[10];
+
+
+void fe_0(fe h);
+void fe_1(fe h);
+
+void fe_frombytes(fe h, const unsigned char *s);
+void fe_tobytes(unsigned char *s, const fe h);
+
+void fe_copy(fe h, const fe f);
+int fe_isnegative(const fe f);
+int fe_isnonzero(const fe f);
+void fe_cmov(fe f, const fe g, unsigned int b);
+void fe_cswap(fe f, fe g, unsigned int b);
+
+void fe_neg(fe h, const fe f);
+void fe_add(fe h, const fe f, const fe g);
+void fe_invert(fe out, const fe z);
+void fe_sq(fe h, const fe f);
+void fe_sq2(fe h, const fe f);
+void fe_mul(fe h, const fe f, const fe g);
+void fe_mul121666(fe h, fe f);
+void fe_pow22523(fe out, const fe z);
+void fe_sub(fe h, const fe f, const fe g);
+
+#endif
@@ -0,0 +1,72 @@
+/*
+    Portable header to provide the 32 and 64 bits type.
+
+    Not a compatible replacement for <stdint.h>, do not blindly use it as such.
+*/
+
+#if ((defined(__STDC__) && __STDC__ && __STDC_VERSION__ >= 199901L) || (defined(__WATCOMC__) && (defined(_STDINT_H_INCLUDED) || __WATCOMC__ >= 1250)) || (defined(__GNUC__) && (defined(_STDINT_H) || defined(_STDINT_H_) || defined(__UINT_FAST64_TYPE__)) )) && !defined(FIXEDINT_H_INCLUDED)
+    #include <stdint.h>
+    #define FIXEDINT_H_INCLUDED
+
+    #if defined(__WATCOMC__) && __WATCOMC__ >= 1250 && !defined(UINT64_C)
+        #include <limits.h>
+        #define UINT64_C(x) (x + (UINT64_MAX - UINT64_MAX))
+    #endif
+#endif
+
+
+#ifndef FIXEDINT_H_INCLUDED
+    #define FIXEDINT_H_INCLUDED
+    
+    #include <limits.h>
+
+    /* (u)int32_t */
+    #ifndef uint32_t
+        #if (ULONG_MAX == 0xffffffffUL)
+            typedef unsigned long uint32_t;
+        #elif (UINT_MAX == 0xffffffffUL)
+            typedef unsigned int uint32_t;
+        #elif (USHRT_MAX == 0xffffffffUL)
+            typedef unsigned short uint32_t;
+        #endif
+    #endif
+
+
+    #ifndef int32_t
+        #if (LONG_MAX == 0x7fffffffL)
+            typedef signed long int32_t;
+        #elif (INT_MAX == 0x7fffffffL)
+            typedef signed int int32_t;
+        #elif (SHRT_MAX == 0x7fffffffL)
+            typedef signed short int32_t;
+        #endif
+    #endif
+
+
+    /* (u)int64_t */
+    #if (defined(__STDC__) && defined(__STDC_VERSION__) && __STDC__ && __STDC_VERSION__ >= 199901L)
+        typedef long long int64_t;
+        typedef unsigned long long uint64_t;
+
+        #define UINT64_C(v) v ##ULL
+        #define INT64_C(v) v ##LL
+    #elif defined(__GNUC__)
+        __extension__ typedef long long int64_t;
+        __extension__ typedef unsigned long long uint64_t;
+
+        #define UINT64_C(v) v ##ULL
+        #define INT64_C(v) v ##LL
+    #elif defined(__MWERKS__) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__APPLE_CC__) || defined(_LONG_LONG) || defined(_CRAYC)
+        typedef long long int64_t;
+        typedef unsigned long long uint64_t;
+
+        #define UINT64_C(v) v ##ULL
+        #define INT64_C(v) v ##LL
+    #elif (defined(__WATCOMC__) && defined(__WATCOM_INT64__)) || (defined(_MSC_VER) && _INTEGRAL_MAX_BITS >= 64) || (defined(__BORLANDC__) && __BORLANDC__ > 0x460) || defined(__alpha) || defined(__DECC)
+        typedef __int64 int64_t;
+        typedef unsigned __int64 uint64_t;
+
+        #define UINT64_C(v) v ##UI64
+        #define INT64_C(v) v ##I64
+    #endif
+#endif
@@ -0,0 +1,467 @@
+#include "ge.h"
+#include "precomp_data.h"
+
+
+/*
+r = p + q
+*/
+
+void ge_add(ge_p1p1 *r, const ge_p3 *p, const ge_cached *q) {
+    fe t0;
+    fe_add(r->X, p->Y, p->X);
+    fe_sub(r->Y, p->Y, p->X);
+    fe_mul(r->Z, r->X, q->YplusX);
+    fe_mul(r->Y, r->Y, q->YminusX);
+    fe_mul(r->T, q->T2d, p->T);
+    fe_mul(r->X, p->Z, q->Z);
+    fe_add(t0, r->X, r->X);
+    fe_sub(r->X, r->Z, r->Y);
+    fe_add(r->Y, r->Z, r->Y);
+    fe_add(r->Z, t0, r->T);
+    fe_sub(r->T, t0, r->T);
+}
+
+
+static void slide(signed char *r, const unsigned char *a) {
+    int i;
+    int b;
+    int k;
+
+    for (i = 0; i < 256; ++i) {
+        r[i] = 1 & (a[i >> 3] >> (i & 7));
+    }
+
+    for (i = 0; i < 256; ++i)
+        if (r[i]) {
+            for (b = 1; b <= 6 && i + b < 256; ++b) {
+                if (r[i + b]) {
+                    if (r[i] + (r[i + b] << b) <= 15) {
+                        r[i] += r[i + b] << b;
+                        r[i + b] = 0;
+                    } else if (r[i] - (r[i + b] << b) >= -15) {
+                        r[i] -= r[i + b] << b;
+
+                        for (k = i + b; k < 256; ++k) {
+                            if (!r[k]) {
+                                r[k] = 1;
+                                break;
+                            }
+
+                            r[k] = 0;
+                        }
+                    } else {
+                        break;
+                    }
+                }
+            }
+        }
+}
+
+/*
+r = a * A + b * B
+where a = a[0]+256*a[1]+...+256^31 a[31].
+and b = b[0]+256*b[1]+...+256^31 b[31].
+B is the Ed25519 base point (x,4/5) with x positive.
+*/
+
+void ge_double_scalarmult_vartime(ge_p2 *r, const unsigned char *a, const ge_p3 *A, const unsigned char *b) {
+    signed char aslide[256];
+    signed char bslide[256];
+    ge_cached Ai[8]; /* A,3A,5A,7A,9A,11A,13A,15A */
+    ge_p1p1 t;
+    ge_p3 u;
+    ge_p3 A2;
+    int i;
+    slide(aslide, a);
+    slide(bslide, b);
+    ge_p3_to_cached(&Ai[0], A);
+    ge_p3_dbl(&t, A);
+    ge_p1p1_to_p3(&A2, &t);
+    ge_add(&t, &A2, &Ai[0]);
+    ge_p1p1_to_p3(&u, &t);
+    ge_p3_to_cached(&Ai[1], &u);
+    ge_add(&t, &A2, &Ai[1]);
+    ge_p1p1_to_p3(&u, &t);
+    ge_p3_to_cached(&Ai[2], &u);
+    ge_add(&t, &A2, &Ai[2]);
+    ge_p1p1_to_p3(&u, &t);
+    ge_p3_to_cached(&Ai[3], &u);
+    ge_add(&t, &A2, &Ai[3]);
+    ge_p1p1_to_p3(&u, &t);
+    ge_p3_to_cached(&Ai[4], &u);
+    ge_add(&t, &A2, &Ai[4]);
+    ge_p1p1_to_p3(&u, &t);
+    ge_p3_to_cached(&Ai[5], &u);
+    ge_add(&t, &A2, &Ai[5]);
+    ge_p1p1_to_p3(&u, &t);
+    ge_p3_to_cached(&Ai[6], &u);
+    ge_add(&t, &A2, &Ai[6]);
+    ge_p1p1_to_p3(&u, &t);
+    ge_p3_to_cached(&Ai[7], &u);
+    ge_p2_0(r);
+
+    for (i = 255; i >= 0; --i) {
+        if (aslide[i] || bslide[i]) {
+            break;
+        }
+    }
+
+    for (; i >= 0; --i) {
+        ge_p2_dbl(&t, r);
+
+        if (aslide[i] > 0) {
+            ge_p1p1_to_p3(&u, &t);
+            ge_add(&t, &u, &Ai[aslide[i] / 2]);
+        } else if (aslide[i] < 0) {
+            ge_p1p1_to_p3(&u, &t);
+            ge_sub(&t, &u, &Ai[(-aslide[i]) / 2]);
+        }
+
+        if (bslide[i] > 0) {
+            ge_p1p1_to_p3(&u, &t);
+            ge_madd(&t, &u, &Bi[bslide[i] / 2]);
+        } else if (bslide[i] < 0) {
+            ge_p1p1_to_p3(&u, &t);
+            ge_msub(&t, &u, &Bi[(-bslide[i]) / 2]);
+        }
+
+        ge_p1p1_to_p2(r, &t);
+    }
+}
+
+
+static const fe d = {
+    -10913610, 13857413, -15372611, 6949391, 114729, -8787816, -6275908, -3247719, -18696448, -12055116
+};
+
+static const fe sqrtm1 = {
+    -32595792, -7943725, 9377950, 3500415, 12389472, -272473, -25146209, -2005654, 326686, 11406482
+};
+
+int ge_frombytes_negate_vartime(ge_p3 *h, const unsigned char *s) {
+    fe u;
+    fe v;
+    fe v3;
+    fe vxx;
+    fe check;
+    fe_frombytes(h->Y, s);
+    fe_1(h->Z);
+    fe_sq(u, h->Y);
+    fe_mul(v, u, d);
+    fe_sub(u, u, h->Z);     /* u = y^2-1 */
+    fe_add(v, v, h->Z);     /* v = dy^2+1 */
+    fe_sq(v3, v);
+    fe_mul(v3, v3, v);      /* v3 = v^3 */
+    fe_sq(h->X, v3);
+    fe_mul(h->X, h->X, v);
+    fe_mul(h->X, h->X, u);  /* x = uv^7 */
+    fe_pow22523(h->X, h->X); /* x = (uv^7)^((q-5)/8) */
+    fe_mul(h->X, h->X, v3);
+    fe_mul(h->X, h->X, u);  /* x = uv^3(uv^7)^((q-5)/8) */
+    fe_sq(vxx, h->X);
+    fe_mul(vxx, vxx, v);
+    fe_sub(check, vxx, u);  /* vx^2-u */
+
+    if (fe_isnonzero(check)) {
+        fe_add(check, vxx, u); /* vx^2+u */
+
+        if (fe_isnonzero(check)) {
+            return -1;
+        }
+
+        fe_mul(h->X, h->X, sqrtm1);
+    }
+
+    if (fe_isnegative(h->X) == (s[31] >> 7)) {
+        fe_neg(h->X, h->X);
+    }
+
+    fe_mul(h->T, h->X, h->Y);
+    return 0;
+}
+
+
+/*
+r = p + q
+*/
+
+void ge_madd(ge_p1p1 *r, const ge_p3 *p, const ge_precomp *q) {
+    fe t0;
+    fe_add(r->X, p->Y, p->X);
+    fe_sub(r->Y, p->Y, p->X);
+    fe_mul(r->Z, r->X, q->yplusx);
+    fe_mul(r->Y, r->Y, q->yminusx);
+    fe_mul(r->T, q->xy2d, p->T);
+    fe_add(t0, p->Z, p->Z);
+    fe_sub(r->X, r->Z, r->Y);
+    fe_add(r->Y, r->Z, r->Y);
+    fe_add(r->Z, t0, r->T);
+    fe_sub(r->T, t0, r->T);
+}
+
+
+/*
+r = p - q
+*/
+
+void ge_msub(ge_p1p1 *r, const ge_p3 *p, const ge_precomp *q) {
+    fe t0;
+
+    fe_add(r->X, p->Y, p->X);
+    fe_sub(r->Y, p->Y, p->X);
+    fe_mul(r->Z, r->X, q->yminusx);
+    fe_mul(r->Y, r->Y, q->yplusx);
+    fe_mul(r->T, q->xy2d, p->T);
+    fe_add(t0, p->Z, p->Z);
+    fe_sub(r->X, r->Z, r->Y);
+    fe_add(r->Y, r->Z, r->Y);
+    fe_sub(r->Z, t0, r->T);
+    fe_add(r->T, t0, r->T);
+}
+
+
+/*
+r = p
+*/
+
+void ge_p1p1_to_p2(ge_p2 *r, const ge_p1p1 *p) {
+    fe_mul(r->X, p->X, p->T);
+    fe_mul(r->Y, p->Y, p->Z);
+    fe_mul(r->Z, p->Z, p->T);
+}
+
+
+
+/*
+r = p
+*/
+
+void ge_p1p1_to_p3(ge_p3 *r, const ge_p1p1 *p) {
+    fe_mul(r->X, p->X, p->T);
+    fe_mul(r->Y, p->Y, p->Z);
+    fe_mul(r->Z, p->Z, p->T);
+    fe_mul(r->T, p->X, p->Y);
+}
+
+
+void ge_p2_0(ge_p2 *h) {
+    fe_0(h->X);
+    fe_1(h->Y);
+    fe_1(h->Z);
+}
+
+
+
+/*
+r = 2 * p
+*/
+
+void ge_p2_dbl(ge_p1p1 *r, const ge_p2 *p) {
+    fe t0;
+
+    fe_sq(r->X, p->X);
+    fe_sq(r->Z, p->Y);
+    fe_sq2(r->T, p->Z);
+    fe_add(r->Y, p->X, p->Y);
+    fe_sq(t0, r->Y);
+    fe_add(r->Y, r->Z, r->X);
+    fe_sub(r->Z, r->Z, r->X);
+    fe_sub(r->X, t0, r->Y);
+    fe_sub(r->T, r->T, r->Z);
+}
+
+
+void ge_p3_0(ge_p3 *h) {
+    fe_0(h->X);
+    fe_1(h->Y);
+    fe_1(h->Z);
+    fe_0(h->T);
+}
+
+
+/*
+r = 2 * p
+*/
+
+void ge_p3_dbl(ge_p1p1 *r, const ge_p3 *p) {
+    ge_p2 q;
+    ge_p3_to_p2(&q, p);
+    ge_p2_dbl(r, &q);
+}
+
+
+
+/*
+r = p
+*/
+
+static const fe d2 = {
+    -21827239, -5839606, -30745221, 13898782, 229458, 15978800, -12551817, -6495438, 29715968, 9444199
+};
+
+void ge_p3_to_cached(ge_cached *r, const ge_p3 *p) {
+    fe_add(r->YplusX, p->Y, p->X);
+    fe_sub(r->YminusX, p->Y, p->X);
+    fe_copy(r->Z, p->Z);
+    fe_mul(r->T2d, p->T, d2);
+}
+
+
+/*
+r = p
+*/
+
+void ge_p3_to_p2(ge_p2 *r, const ge_p3 *p) {
+    fe_copy(r->X, p->X);
+    fe_copy(r->Y, p->Y);
+    fe_copy(r->Z, p->Z);
+}
+
+
+void ge_p3_tobytes(unsigned char *s, const ge_p3 *h) {
+    fe recip;
+    fe x;
+    fe y;
+    fe_invert(recip, h->Z);
+    fe_mul(x, h->X, recip);
+    fe_mul(y, h->Y, recip);
+    fe_tobytes(s, y);
+    s[31] ^= fe_isnegative(x) << 7;
+}
+
+
+static unsigned char equal(signed char b, signed char c) {
+    unsigned char ub = b;
+    unsigned char uc = c;
+    unsigned char x = ub ^ uc; /* 0: yes; 1..255: no */
+    uint64_t y = x; /* 0: yes; 1..255: no */
+    y -= 1; /* large: yes; 0..254: no */
+    y >>= 63; /* 1: yes; 0: no */
+    return (unsigned char) y;
+}
+
+static unsigned char negative(signed char b) {
+    uint64_t x = b; /* 18446744073709551361..18446744073709551615: yes; 0..255: no */
+    x >>= 63; /* 1: yes; 0: no */
+    return (unsigned char) x;
+}
+
+static void cmov(ge_precomp *t, const ge_precomp *u, unsigned char b) {
+    fe_cmov(t->yplusx, u->yplusx, b);
+    fe_cmov(t->yminusx, u->yminusx, b);
+    fe_cmov(t->xy2d, u->xy2d, b);
+}
+
+
+static void select(ge_precomp *t, int pos, signed char b) {
+    ge_precomp minust;
+    unsigned char bnegative = negative(b);
+    unsigned char babs = b - (((-bnegative) & b) << 1);
+    fe_1(t->yplusx);
+    fe_1(t->yminusx);
+    fe_0(t->xy2d);
+    cmov(t, &base[pos][0], equal(babs, 1));
+    cmov(t, &base[pos][1], equal(babs, 2));
+    cmov(t, &base[pos][2], equal(babs, 3));
+    cmov(t, &base[pos][3], equal(babs, 4));
+    cmov(t, &base[pos][4], equal(babs, 5));
+    cmov(t, &base[pos][5], equal(babs, 6));
+    cmov(t, &base[pos][6], equal(babs, 7));
+    cmov(t, &base[pos][7], equal(babs, 8));
+    fe_copy(minust.yplusx, t->yminusx);
+    fe_copy(minust.yminusx, t->yplusx);
+    fe_neg(minust.xy2d, t->xy2d);
+    cmov(t, &minust, bnegative);
+}
+
+/*
+h = a * B
+where a = a[0]+256*a[1]+...+256^31 a[31]
+B is the Ed25519 base point (x,4/5) with x positive.
+
+Preconditions:
+  a[31] <= 127
+*/
+
+void ge_scalarmult_base(ge_p3 *h, const unsigned char *a) {
+    signed char e[64];
+    signed char carry;
+    ge_p1p1 r;
+    ge_p2 s;
+    ge_precomp t;
+    int i;
+
+    for (i = 0; i < 32; ++i) {
+        e[2 * i + 0] = (a[i] >> 0) & 15;
+        e[2 * i + 1] = (a[i] >> 4) & 15;
+    }
+
+    /* each e[i] is between 0 and 15 */
+    /* e[63] is between 0 and 7 */
+    carry = 0;
+
+    for (i = 0; i < 63; ++i) {
+        e[i] += carry;
+        carry = e[i] + 8;
+        carry >>= 4;
+        e[i] -= carry << 4;
+    }
+
+    e[63] += carry;
+    /* each e[i] is between -8 and 8 */
+    ge_p3_0(h);
+
+    for (i = 1; i < 64; i += 2) {
+        select(&t, i / 2, e[i]);
+        ge_madd(&r, h, &t);
+        ge_p1p1_to_p3(h, &r);
+    }
+
+    ge_p3_dbl(&r, h);
+    ge_p1p1_to_p2(&s, &r);
+    ge_p2_dbl(&r, &s);
+    ge_p1p1_to_p2(&s, &r);
+    ge_p2_dbl(&r, &s);
+    ge_p1p1_to_p2(&s, &r);
+    ge_p2_dbl(&r, &s);
+    ge_p1p1_to_p3(h, &r);
+
+    for (i = 0; i < 64; i += 2) {
+        select(&t, i / 2, e[i]);
+        ge_madd(&r, h, &t);
+        ge_p1p1_to_p3(h, &r);
+    }
+}
+
+
+/*
+r = p - q
+*/
+
+void ge_sub(ge_p1p1 *r, const ge_p3 *p, const ge_cached *q) {
+    fe t0;
+    
+    fe_add(r->X, p->Y, p->X);
+    fe_sub(r->Y, p->Y, p->X);
+    fe_mul(r->Z, r->X, q->YminusX);
+    fe_mul(r->Y, r->Y, q->YplusX);
+    fe_mul(r->T, q->T2d, p->T);
+    fe_mul(r->X, p->Z, q->Z);
+    fe_add(t0, r->X, r->X);
+    fe_sub(r->X, r->Z, r->Y);
+    fe_add(r->Y, r->Z, r->Y);
+    fe_sub(r->Z, t0, r->T);
+    fe_add(r->T, t0, r->T);
+}
+
+
+void ge_tobytes(unsigned char *s, const ge_p2 *h) {
+    fe recip;
+    fe x;
+    fe y;
+    fe_invert(recip, h->Z);
+    fe_mul(x, h->X, recip);
+    fe_mul(y, h->Y, recip);
+    fe_tobytes(s, y);
+    s[31] ^= fe_isnegative(x) << 7;
+}
@@ -0,0 +1,74 @@
+#ifndef GE_H
+#define GE_H
+
+#include "fe.h"
+
+
+/*
+ge means group element.
+
+Here the group is the set of pairs (x,y) of field elements (see fe.h)
+satisfying -x^2 + y^2 = 1 + d x^2y^2
+where d = -121665/121666.
+
+Representations:
+  ge_p2 (projective): (X:Y:Z) satisfying x=X/Z, y=Y/Z
+  ge_p3 (extended): (X:Y:Z:T) satisfying x=X/Z, y=Y/Z, XY=ZT
+  ge_p1p1 (completed): ((X:Z),(Y:T)) satisfying x=X/Z, y=Y/T
+  ge_precomp (Duif): (y+x,y-x,2dxy)
+*/
+
+typedef struct {
+  fe X;
+  fe Y;
+  fe Z;
+} ge_p2;
+
+typedef struct {
+  fe X;
+  fe Y;
+  fe Z;
+  fe T;
+} ge_p3;
+
+typedef struct {
+  fe X;
+  fe Y;
+  fe Z;
+  fe T;
+} ge_p1p1;
+
+typedef struct {
+  fe yplusx;
+  fe yminusx;
+  fe xy2d;
+} ge_precomp;
+
+typedef struct {
+  fe YplusX;
+  fe YminusX;
+  fe Z;
+  fe T2d;
+} ge_cached;
+
+void ge_p3_tobytes(unsigned char *s, const ge_p3 *h);
+void ge_tobytes(unsigned char *s, const ge_p2 *h);
+int ge_frombytes_negate_vartime(ge_p3 *h, const unsigned char *s);
+
+void ge_add(ge_p1p1 *r, const ge_p3 *p, const ge_cached *q);
+void ge_sub(ge_p1p1 *r, const ge_p3 *p, const ge_cached *q);
+void ge_double_scalarmult_vartime(ge_p2 *r, const unsigned char *a, const ge_p3 *A, const unsigned char *b);
+void ge_madd(ge_p1p1 *r, const ge_p3 *p, const ge_precomp *q);
+void ge_msub(ge_p1p1 *r, const ge_p3 *p, const ge_precomp *q);
+void ge_scalarmult_base(ge_p3 *h, const unsigned char *a);
+
+void ge_p1p1_to_p2(ge_p2 *r, const ge_p1p1 *p);
+void ge_p1p1_to_p3(ge_p3 *r, const ge_p1p1 *p);
+void ge_p2_0(ge_p2 *h);
+void ge_p2_dbl(ge_p1p1 *r, const ge_p2 *p);
+void ge_p3_0(ge_p3 *h);
+void ge_p3_dbl(ge_p1p1 *r, const ge_p3 *p);
+void ge_p3_to_cached(ge_cached *r, const ge_p3 *p);
+void ge_p3_to_p2(ge_p2 *r, const ge_p3 *p);
+
+#endif
@@ -0,0 +1,79 @@
+#include "ed_25519.h"
+#include "fe.h"
+
+void ed25519_key_exchange(unsigned char *shared_secret, const unsigned char *public_key, const unsigned char *private_key) {
+    unsigned char e[32];
+    unsigned int i;
+    
+    fe x1;
+    fe x2;
+    fe z2;
+    fe x3;
+    fe z3;
+    fe tmp0;
+    fe tmp1;
+
+    int pos;
+    unsigned int swap;
+    unsigned int b;
+
+    /* copy the private key and make sure it's valid */
+    for (i = 0; i < 32; ++i) {
+        e[i] = private_key[i];
+    }
+
+    e[0] &= 248;
+    e[31] &= 63;
+    e[31] |= 64;
+
+    /* unpack the public key and convert edwards to montgomery */
+    /* due to CodesInChaos: montgomeryX = (edwardsY + 1)*inverse(1 - edwardsY) mod p */
+    fe_frombytes(x1, public_key);
+    fe_1(tmp1);
+    fe_add(tmp0, x1, tmp1);
+    fe_sub(tmp1, tmp1, x1);
+    fe_invert(tmp1, tmp1);
+    fe_mul(x1, tmp0, tmp1);
+
+    fe_1(x2);
+    fe_0(z2);
+    fe_copy(x3, x1);
+    fe_1(z3);
+
+    swap = 0;
+    for (pos = 254; pos >= 0; --pos) {
+        b = e[pos / 8] >> (pos & 7);
+        b &= 1;
+        swap ^= b;
+        fe_cswap(x2, x3, swap);
+        fe_cswap(z2, z3, swap);
+        swap = b;
+
+        /* from montgomery.h */
+        fe_sub(tmp0, x3, z3);
+        fe_sub(tmp1, x2, z2);
+        fe_add(x2, x2, z2);
+        fe_add(z2, x3, z3);
+        fe_mul(z3, tmp0, x2);
+        fe_mul(z2, z2, tmp1);
+        fe_sq(tmp0, tmp1);
+        fe_sq(tmp1, x2);
+        fe_add(x3, z3, z2);
+        fe_sub(z2, z3, z2);
+        fe_mul(x2, tmp1, tmp0);
+        fe_sub(tmp1, tmp1, tmp0);
+        fe_sq(z2, z2);
+        fe_mul121666(z3, tmp1);
+        fe_sq(x3, x3);
+        fe_add(tmp0, tmp0, z3);
+        fe_mul(z3, x1, z2);
+        fe_mul(z2, tmp1, tmp0);
+    }
+
+    fe_cswap(x2, x3, swap);
+    fe_cswap(z2, z3, swap);
+
+    fe_invert(z2, z2);
+    fe_mul(x2, x2, z2);
+    fe_tobytes(shared_secret, x2);
+}
@@ -0,0 +1,23 @@
+#include "ed_25519.h"
+#include "sha512.h"
+#include "ge.h"
+
+
+void ed25519_create_keypair(unsigned char *public_key, unsigned char *private_key, const unsigned char *seed) {
+    ge_p3 A;
+
+    sha512(seed, 32, private_key);
+    private_key[0] &= 248;
+    private_key[31] &= 63;
+    private_key[31] |= 64;
+
+    ge_scalarmult_base(&A, private_key);
+    ge_p3_tobytes(public_key, &A);
+}
+
+void ed25519_derive_pub(unsigned char *public_key, const unsigned char *private_key) {
+    ge_p3 A;
+
+    ge_scalarmult_base(&A, private_key);
+    ge_p3_tobytes(public_key, &A);
+}
@@ -0,0 +1,16 @@
+Copyright (c) 2015 Orson Peters <orsonpeters@gmail.com>
+
+This software is provided 'as-is', without any express or implied warranty. In no event will the
+authors be held liable for any damages arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose, including commercial
+applications, and to alter it and redistribute it freely, subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not claim that you wrote the
+   original software. If you use this software in a product, an acknowledgment in the product
+   documentation would be appreciated but is not required.
+
+2. Altered source versions must be plainly marked as such, and must not be misrepresented as
+   being the original software.
+
+3. This notice may not be removed or altered from any source distribution.
@@ -0,0 +1,809 @@
+#include "fixedint.h"
+#include "sc.h"
+
+static uint64_t load_3(const unsigned char *in) {
+    uint64_t result;
+
+    result = (uint64_t) in[0];
+    result |= ((uint64_t) in[1]) << 8;
+    result |= ((uint64_t) in[2]) << 16;
+
+    return result;
+}
+
+static uint64_t load_4(const unsigned char *in) {
+    uint64_t result;
+
+    result = (uint64_t) in[0];
+    result |= ((uint64_t) in[1]) << 8;
+    result |= ((uint64_t) in[2]) << 16;
+    result |= ((uint64_t) in[3]) << 24;
+    
+    return result;
+}
+
+/*
+Input:
+  s[0]+256*s[1]+...+256^63*s[63] = s
+
+Output:
+  s[0]+256*s[1]+...+256^31*s[31] = s mod l
+  where l = 2^252 + 27742317777372353535851937790883648493.
+  Overwrites s in place.
+*/
+
+void sc_reduce(unsigned char *s) {
+    int64_t s0 = 2097151 & load_3(s);
+    int64_t s1 = 2097151 & (load_4(s + 2) >> 5);
+    int64_t s2 = 2097151 & (load_3(s + 5) >> 2);
+    int64_t s3 = 2097151 & (load_4(s + 7) >> 7);
+    int64_t s4 = 2097151 & (load_4(s + 10) >> 4);
+    int64_t s5 = 2097151 & (load_3(s + 13) >> 1);
+    int64_t s6 = 2097151 & (load_4(s + 15) >> 6);
+    int64_t s7 = 2097151 & (load_3(s + 18) >> 3);
+    int64_t s8 = 2097151 & load_3(s + 21);
+    int64_t s9 = 2097151 & (load_4(s + 23) >> 5);
+    int64_t s10 = 2097151 & (load_3(s + 26) >> 2);
+    int64_t s11 = 2097151 & (load_4(s + 28) >> 7);
+    int64_t s12 = 2097151 & (load_4(s + 31) >> 4);
+    int64_t s13 = 2097151 & (load_3(s + 34) >> 1);
+    int64_t s14 = 2097151 & (load_4(s + 36) >> 6);
+    int64_t s15 = 2097151 & (load_3(s + 39) >> 3);
+    int64_t s16 = 2097151 & load_3(s + 42);
+    int64_t s17 = 2097151 & (load_4(s + 44) >> 5);
+    int64_t s18 = 2097151 & (load_3(s + 47) >> 2);
+    int64_t s19 = 2097151 & (load_4(s + 49) >> 7);
+    int64_t s20 = 2097151 & (load_4(s + 52) >> 4);
+    int64_t s21 = 2097151 & (load_3(s + 55) >> 1);
+    int64_t s22 = 2097151 & (load_4(s + 57) >> 6);
+    int64_t s23 = (load_4(s + 60) >> 3);
+    int64_t carry0;
+    int64_t carry1;
+    int64_t carry2;
+    int64_t carry3;
+    int64_t carry4;
+    int64_t carry5;
+    int64_t carry6;
+    int64_t carry7;
+    int64_t carry8;
+    int64_t carry9;
+    int64_t carry10;
+    int64_t carry11;
+    int64_t carry12;
+    int64_t carry13;
+    int64_t carry14;
+    int64_t carry15;
+    int64_t carry16;
+
+    s11 += s23 * 666643;
+    s12 += s23 * 470296;
+    s13 += s23 * 654183;
+    s14 -= s23 * 997805;
+    s15 += s23 * 136657;
+    s16 -= s23 * 683901;
+    s23 = 0;
+    s10 += s22 * 666643;
+    s11 += s22 * 470296;
+    s12 += s22 * 654183;
+    s13 -= s22 * 997805;
+    s14 += s22 * 136657;
+    s15 -= s22 * 683901;
+    s22 = 0;
+    s9 += s21 * 666643;
+    s10 += s21 * 470296;
+    s11 += s21 * 654183;
+    s12 -= s21 * 997805;
+    s13 += s21 * 136657;
+    s14 -= s21 * 683901;
+    s21 = 0;
+    s8 += s20 * 666643;
+    s9 += s20 * 470296;
+    s10 += s20 * 654183;
+    s11 -= s20 * 997805;
+    s12 += s20 * 136657;
+    s13 -= s20 * 683901;
+    s20 = 0;
+    s7 += s19 * 666643;
+    s8 += s19 * 470296;
+    s9 += s19 * 654183;
+    s10 -= s19 * 997805;
+    s11 += s19 * 136657;
+    s12 -= s19 * 683901;
+    s19 = 0;
+    s6 += s18 * 666643;
+    s7 += s18 * 470296;
+    s8 += s18 * 654183;
+    s9 -= s18 * 997805;
+    s10 += s18 * 136657;
+    s11 -= s18 * 683901;
+    s18 = 0;
+    carry6 = (s6 + (1 << 20)) >> 21;
+    s7 += carry6;
+    s6 -= carry6 << 21;
+    carry8 = (s8 + (1 << 20)) >> 21;
+    s9 += carry8;
+    s8 -= carry8 << 21;
+    carry10 = (s10 + (1 << 20)) >> 21;
+    s11 += carry10;
+    s10 -= carry10 << 21;
+    carry12 = (s12 + (1 << 20)) >> 21;
+    s13 += carry12;
+    s12 -= carry12 << 21;
+    carry14 = (s14 + (1 << 20)) >> 21;
+    s15 += carry14;
+    s14 -= carry14 << 21;
+    carry16 = (s16 + (1 << 20)) >> 21;
+    s17 += carry16;
+    s16 -= carry16 << 21;
+    carry7 = (s7 + (1 << 20)) >> 21;
+    s8 += carry7;
+    s7 -= carry7 << 21;
+    carry9 = (s9 + (1 << 20)) >> 21;
+    s10 += carry9;
+    s9 -= carry9 << 21;
+    carry11 = (s11 + (1 << 20)) >> 21;
+    s12 += carry11;
+    s11 -= carry11 << 21;
+    carry13 = (s13 + (1 << 20)) >> 21;
+    s14 += carry13;
+    s13 -= carry13 << 21;
+    carry15 = (s15 + (1 << 20)) >> 21;
+    s16 += carry15;
+    s15 -= carry15 << 21;
+    s5 += s17 * 666643;
+    s6 += s17 * 470296;
+    s7 += s17 * 654183;
+    s8 -= s17 * 997805;
+    s9 += s17 * 136657;
+    s10 -= s17 * 683901;
+    s17 = 0;
+    s4 += s16 * 666643;
+    s5 += s16 * 470296;
+    s6 += s16 * 654183;
+    s7 -= s16 * 997805;
+    s8 += s16 * 136657;
+    s9 -= s16 * 683901;
+    s16 = 0;
+    s3 += s15 * 666643;
+    s4 += s15 * 470296;
+    s5 += s15 * 654183;
+    s6 -= s15 * 997805;
+    s7 += s15 * 136657;
+    s8 -= s15 * 683901;
+    s15 = 0;
+    s2 += s14 * 666643;
+    s3 += s14 * 470296;
+    s4 += s14 * 654183;
+    s5 -= s14 * 997805;
+    s6 += s14 * 136657;
+    s7 -= s14 * 683901;
+    s14 = 0;
+    s1 += s13 * 666643;
+    s2 += s13 * 470296;
+    s3 += s13 * 654183;
+    s4 -= s13 * 997805;
+    s5 += s13 * 136657;
+    s6 -= s13 * 683901;
+    s13 = 0;
+    s0 += s12 * 666643;
+    s1 += s12 * 470296;
+    s2 += s12 * 654183;
+    s3 -= s12 * 997805;
+    s4 += s12 * 136657;
+    s5 -= s12 * 683901;
+    s12 = 0;
+    carry0 = (s0 + (1 << 20)) >> 21;
+    s1 += carry0;
+    s0 -= carry0 << 21;
+    carry2 = (s2 + (1 << 20)) >> 21;
+    s3 += carry2;
+    s2 -= carry2 << 21;
+    carry4 = (s4 + (1 << 20)) >> 21;
+    s5 += carry4;
+    s4 -= carry4 << 21;
+    carry6 = (s6 + (1 << 20)) >> 21;
+    s7 += carry6;
+    s6 -= carry6 << 21;
+    carry8 = (s8 + (1 << 20)) >> 21;
+    s9 += carry8;
+    s8 -= carry8 << 21;
+    carry10 = (s10 + (1 << 20)) >> 21;
+    s11 += carry10;
+    s10 -= carry10 << 21;
+    carry1 = (s1 + (1 << 20)) >> 21;
+    s2 += carry1;
+    s1 -= carry1 << 21;
+    carry3 = (s3 + (1 << 20)) >> 21;
+    s4 += carry3;
+    s3 -= carry3 << 21;
+    carry5 = (s5 + (1 << 20)) >> 21;
+    s6 += carry5;
+    s5 -= carry5 << 21;
+    carry7 = (s7 + (1 << 20)) >> 21;
+    s8 += carry7;
+    s7 -= carry7 << 21;
+    carry9 = (s9 + (1 << 20)) >> 21;
+    s10 += carry9;
+    s9 -= carry9 << 21;
+    carry11 = (s11 + (1 << 20)) >> 21;
+    s12 += carry11;
+    s11 -= carry11 << 21;
+    s0 += s12 * 666643;
+    s1 += s12 * 470296;
+    s2 += s12 * 654183;
+    s3 -= s12 * 997805;
+    s4 += s12 * 136657;
+    s5 -= s12 * 683901;
+    s12 = 0;
+    carry0 = s0 >> 21;
+    s1 += carry0;
+    s0 -= carry0 << 21;
+    carry1 = s1 >> 21;
+    s2 += carry1;
+    s1 -= carry1 << 21;
+    carry2 = s2 >> 21;
+    s3 += carry2;
+    s2 -= carry2 << 21;
+    carry3 = s3 >> 21;
+    s4 += carry3;
+    s3 -= carry3 << 21;
+    carry4 = s4 >> 21;
+    s5 += carry4;
+    s4 -= carry4 << 21;
+    carry5 = s5 >> 21;
+    s6 += carry5;
+    s5 -= carry5 << 21;
+    carry6 = s6 >> 21;
+    s7 += carry6;
+    s6 -= carry6 << 21;
+    carry7 = s7 >> 21;
+    s8 += carry7;
+    s7 -= carry7 << 21;
+    carry8 = s8 >> 21;
+    s9 += carry8;
+    s8 -= carry8 << 21;
+    carry9 = s9 >> 21;
+    s10 += carry9;
+    s9 -= carry9 << 21;
+    carry10 = s10 >> 21;
+    s11 += carry10;
+    s10 -= carry10 << 21;
+    carry11 = s11 >> 21;
+    s12 += carry11;
+    s11 -= carry11 << 21;
+    s0 += s12 * 666643;
+    s1 += s12 * 470296;
+    s2 += s12 * 654183;
+    s3 -= s12 * 997805;
+    s4 += s12 * 136657;
+    s5 -= s12 * 683901;
+    s12 = 0;
+    carry0 = s0 >> 21;
+    s1 += carry0;
+    s0 -= carry0 << 21;
+    carry1 = s1 >> 21;
+    s2 += carry1;
+    s1 -= carry1 << 21;
+    carry2 = s2 >> 21;
+    s3 += carry2;
+    s2 -= carry2 << 21;
+    carry3 = s3 >> 21;
+    s4 += carry3;
+    s3 -= carry3 << 21;
+    carry4 = s4 >> 21;
+    s5 += carry4;
+    s4 -= carry4 << 21;
+    carry5 = s5 >> 21;
+    s6 += carry5;
+    s5 -= carry5 << 21;
+    carry6 = s6 >> 21;
+    s7 += carry6;
+    s6 -= carry6 << 21;
+    carry7 = s7 >> 21;
+    s8 += carry7;
+    s7 -= carry7 << 21;
+    carry8 = s8 >> 21;
+    s9 += carry8;
+    s8 -= carry8 << 21;
+    carry9 = s9 >> 21;
+    s10 += carry9;
+    s9 -= carry9 << 21;
+    carry10 = s10 >> 21;
+    s11 += carry10;
+    s10 -= carry10 << 21;
+
+    s[0] = (unsigned char) (s0 >> 0);
+    s[1] = (unsigned char) (s0 >> 8);
+    s[2] = (unsigned char) ((s0 >> 16) | (s1 << 5));
+    s[3] = (unsigned char) (s1 >> 3);
+    s[4] = (unsigned char) (s1 >> 11);
+    s[5] = (unsigned char) ((s1 >> 19) | (s2 << 2));
+    s[6] = (unsigned char) (s2 >> 6);
+    s[7] = (unsigned char) ((s2 >> 14) | (s3 << 7));
+    s[8] = (unsigned char) (s3 >> 1);
+    s[9] = (unsigned char) (s3 >> 9);
+    s[10] = (unsigned char) ((s3 >> 17) | (s4 << 4));
+    s[11] = (unsigned char) (s4 >> 4);
+    s[12] = (unsigned char) (s4 >> 12);
+    s[13] = (unsigned char) ((s4 >> 20) | (s5 << 1));
+    s[14] = (unsigned char) (s5 >> 7);
+    s[15] = (unsigned char) ((s5 >> 15) | (s6 << 6));
+    s[16] = (unsigned char) (s6 >> 2);
+    s[17] = (unsigned char) (s6 >> 10);
+    s[18] = (unsigned char) ((s6 >> 18) | (s7 << 3));
+    s[19] = (unsigned char) (s7 >> 5);
+    s[20] = (unsigned char) (s7 >> 13);
+    s[21] = (unsigned char) (s8 >> 0);
+    s[22] = (unsigned char) (s8 >> 8);
+    s[23] = (unsigned char) ((s8 >> 16) | (s9 << 5));
+    s[24] = (unsigned char) (s9 >> 3);
+    s[25] = (unsigned char) (s9 >> 11);
+    s[26] = (unsigned char) ((s9 >> 19) | (s10 << 2));
+    s[27] = (unsigned char) (s10 >> 6);
+    s[28] = (unsigned char) ((s10 >> 14) | (s11 << 7));
+    s[29] = (unsigned char) (s11 >> 1);
+    s[30] = (unsigned char) (s11 >> 9);
+    s[31] = (unsigned char) (s11 >> 17);
+}
+
+
+
+/*
+Input:
+  a[0]+256*a[1]+...+256^31*a[31] = a
+  b[0]+256*b[1]+...+256^31*b[31] = b
+  c[0]+256*c[1]+...+256^31*c[31] = c
+
+Output:
+  s[0]+256*s[1]+...+256^31*s[31] = (ab+c) mod l
+  where l = 2^252 + 27742317777372353535851937790883648493.
+*/
+
+void sc_muladd(unsigned char *s, const unsigned char *a, const unsigned char *b, const unsigned char *c) {
+    int64_t a0 = 2097151 & load_3(a);
+    int64_t a1 = 2097151 & (load_4(a + 2) >> 5);
+    int64_t a2 = 2097151 & (load_3(a + 5) >> 2);
+    int64_t a3 = 2097151 & (load_4(a + 7) >> 7);
+    int64_t a4 = 2097151 & (load_4(a + 10) >> 4);
+    int64_t a5 = 2097151 & (load_3(a + 13) >> 1);
+    int64_t a6 = 2097151 & (load_4(a + 15) >> 6);
+    int64_t a7 = 2097151 & (load_3(a + 18) >> 3);
+    int64_t a8 = 2097151 & load_3(a + 21);
+    int64_t a9 = 2097151 & (load_4(a + 23) >> 5);
+    int64_t a10 = 2097151 & (load_3(a + 26) >> 2);
+    int64_t a11 = (load_4(a + 28) >> 7);
+    int64_t b0 = 2097151 & load_3(b);
+    int64_t b1 = 2097151 & (load_4(b + 2) >> 5);
+    int64_t b2 = 2097151 & (load_3(b + 5) >> 2);
+    int64_t b3 = 2097151 & (load_4(b + 7) >> 7);
+    int64_t b4 = 2097151 & (load_4(b + 10) >> 4);
+    int64_t b5 = 2097151 & (load_3(b + 13) >> 1);
+    int64_t b6 = 2097151 & (load_4(b + 15) >> 6);
+    int64_t b7 = 2097151 & (load_3(b + 18) >> 3);
+    int64_t b8 = 2097151 & load_3(b + 21);
+    int64_t b9 = 2097151 & (load_4(b + 23) >> 5);
+    int64_t b10 = 2097151 & (load_3(b + 26) >> 2);
+    int64_t b11 = (load_4(b + 28) >> 7);
+    int64_t c0 = 2097151 & load_3(c);
+    int64_t c1 = 2097151 & (load_4(c + 2) >> 5);
+    int64_t c2 = 2097151 & (load_3(c + 5) >> 2);
+    int64_t c3 = 2097151 & (load_4(c + 7) >> 7);
+    int64_t c4 = 2097151 & (load_4(c + 10) >> 4);
+    int64_t c5 = 2097151 & (load_3(c + 13) >> 1);
+    int64_t c6 = 2097151 & (load_4(c + 15) >> 6);
+    int64_t c7 = 2097151 & (load_3(c + 18) >> 3);
+    int64_t c8 = 2097151 & load_3(c + 21);
+    int64_t c9 = 2097151 & (load_4(c + 23) >> 5);
+    int64_t c10 = 2097151 & (load_3(c + 26) >> 2);
+    int64_t c11 = (load_4(c + 28) >> 7);
+    int64_t s0;
+    int64_t s1;
+    int64_t s2;
+    int64_t s3;
+    int64_t s4;
+    int64_t s5;
+    int64_t s6;
+    int64_t s7;
+    int64_t s8;
+    int64_t s9;
+    int64_t s10;
+    int64_t s11;
+    int64_t s12;
+    int64_t s13;
+    int64_t s14;
+    int64_t s15;
+    int64_t s16;
+    int64_t s17;
+    int64_t s18;
+    int64_t s19;
+    int64_t s20;
+    int64_t s21;
+    int64_t s22;
+    int64_t s23;
+    int64_t carry0;
+    int64_t carry1;
+    int64_t carry2;
+    int64_t carry3;
+    int64_t carry4;
+    int64_t carry5;
+    int64_t carry6;
+    int64_t carry7;
+    int64_t carry8;
+    int64_t carry9;
+    int64_t carry10;
+    int64_t carry11;
+    int64_t carry12;
+    int64_t carry13;
+    int64_t carry14;
+    int64_t carry15;
+    int64_t carry16;
+    int64_t carry17;
+    int64_t carry18;
+    int64_t carry19;
+    int64_t carry20;
+    int64_t carry21;
+    int64_t carry22;
+
+    s0 = c0 + a0 * b0;
+    s1 = c1 + a0 * b1 + a1 * b0;
+    s2 = c2 + a0 * b2 + a1 * b1 + a2 * b0;
+    s3 = c3 + a0 * b3 + a1 * b2 + a2 * b1 + a3 * b0;
+    s4 = c4 + a0 * b4 + a1 * b3 + a2 * b2 + a3 * b1 + a4 * b0;
+    s5 = c5 + a0 * b5 + a1 * b4 + a2 * b3 + a3 * b2 + a4 * b1 + a5 * b0;
+    s6 = c6 + a0 * b6 + a1 * b5 + a2 * b4 + a3 * b3 + a4 * b2 + a5 * b1 + a6 * b0;
+    s7 = c7 + a0 * b7 + a1 * b6 + a2 * b5 + a3 * b4 + a4 * b3 + a5 * b2 + a6 * b1 + a7 * b0;
+    s8 = c8 + a0 * b8 + a1 * b7 + a2 * b6 + a3 * b5 + a4 * b4 + a5 * b3 + a6 * b2 + a7 * b1 + a8 * b0;
+    s9 = c9 + a0 * b9 + a1 * b8 + a2 * b7 + a3 * b6 + a4 * b5 + a5 * b4 + a6 * b3 + a7 * b2 + a8 * b1 + a9 * b0;
+    s10 = c10 + a0 * b10 + a1 * b9 + a2 * b8 + a3 * b7 + a4 * b6 + a5 * b5 + a6 * b4 + a7 * b3 + a8 * b2 + a9 * b1 + a10 * b0;
+    s11 = c11 + a0 * b11 + a1 * b10 + a2 * b9 + a3 * b8 + a4 * b7 + a5 * b6 + a6 * b5 + a7 * b4 + a8 * b3 + a9 * b2 + a10 * b1 + a11 * b0;
+    s12 = a1 * b11 + a2 * b10 + a3 * b9 + a4 * b8 + a5 * b7 + a6 * b6 + a7 * b5 + a8 * b4 + a9 * b3 + a10 * b2 + a11 * b1;
+    s13 = a2 * b11 + a3 * b10 + a4 * b9 + a5 * b8 + a6 * b7 + a7 * b6 + a8 * b5 + a9 * b4 + a10 * b3 + a11 * b2;
+    s14 = a3 * b11 + a4 * b10 + a5 * b9 + a6 * b8 + a7 * b7 + a8 * b6 + a9 * b5 + a10 * b4 + a11 * b3;
+    s15 = a4 * b11 + a5 * b10 + a6 * b9 + a7 * b8 + a8 * b7 + a9 * b6 + a10 * b5 + a11 * b4;
+    s16 = a5 * b11 + a6 * b10 + a7 * b9 + a8 * b8 + a9 * b7 + a10 * b6 + a11 * b5;
+    s17 = a6 * b11 + a7 * b10 + a8 * b9 + a9 * b8 + a10 * b7 + a11 * b6;
+    s18 = a7 * b11 + a8 * b10 + a9 * b9 + a10 * b8 + a11 * b7;
+    s19 = a8 * b11 + a9 * b10 + a10 * b9 + a11 * b8;
+    s20 = a9 * b11 + a10 * b10 + a11 * b9;
+    s21 = a10 * b11 + a11 * b10;
+    s22 = a11 * b11;
+    s23 = 0;
+    carry0 = (s0 + (1 << 20)) >> 21;
+    s1 += carry0;
+    s0 -= carry0 << 21;
+    carry2 = (s2 + (1 << 20)) >> 21;
+    s3 += carry2;
+    s2 -= carry2 << 21;
+    carry4 = (s4 + (1 << 20)) >> 21;
+    s5 += carry4;
+    s4 -= carry4 << 21;
+    carry6 = (s6 + (1 << 20)) >> 21;
+    s7 += carry6;
+    s6 -= carry6 << 21;
+    carry8 = (s8 + (1 << 20)) >> 21;
+    s9 += carry8;
+    s8 -= carry8 << 21;
+    carry10 = (s10 + (1 << 20)) >> 21;
+    s11 += carry10;
+    s10 -= carry10 << 21;
+    carry12 = (s12 + (1 << 20)) >> 21;
+    s13 += carry12;
+    s12 -= carry12 << 21;
+    carry14 = (s14 + (1 << 20)) >> 21;
+    s15 += carry14;
+    s14 -= carry14 << 21;
+    carry16 = (s16 + (1 << 20)) >> 21;
+    s17 += carry16;
+    s16 -= carry16 << 21;
+    carry18 = (s18 + (1 << 20)) >> 21;
+    s19 += carry18;
+    s18 -= carry18 << 21;
+    carry20 = (s20 + (1 << 20)) >> 21;
+    s21 += carry20;
+    s20 -= carry20 << 21;
+    carry22 = (s22 + (1 << 20)) >> 21;
+    s23 += carry22;
+    s22 -= carry22 << 21;
+    carry1 = (s1 + (1 << 20)) >> 21;
+    s2 += carry1;
+    s1 -= carry1 << 21;
+    carry3 = (s3 + (1 << 20)) >> 21;
+    s4 += carry3;
+    s3 -= carry3 << 21;
+    carry5 = (s5 + (1 << 20)) >> 21;
+    s6 += carry5;
+    s5 -= carry5 << 21;
+    carry7 = (s7 + (1 << 20)) >> 21;
+    s8 += carry7;
+    s7 -= carry7 << 21;
+    carry9 = (s9 + (1 << 20)) >> 21;
+    s10 += carry9;
+    s9 -= carry9 << 21;
+    carry11 = (s11 + (1 << 20)) >> 21;
+    s12 += carry11;
+    s11 -= carry11 << 21;
+    carry13 = (s13 + (1 << 20)) >> 21;
+    s14 += carry13;
+    s13 -= carry13 << 21;
+    carry15 = (s15 + (1 << 20)) >> 21;
+    s16 += carry15;
+    s15 -= carry15 << 21;
+    carry17 = (s17 + (1 << 20)) >> 21;
+    s18 += carry17;
+    s17 -= carry17 << 21;
+    carry19 = (s19 + (1 << 20)) >> 21;
+    s20 += carry19;
+    s19 -= carry19 << 21;
+    carry21 = (s21 + (1 << 20)) >> 21;
+    s22 += carry21;
+    s21 -= carry21 << 21;
+    s11 += s23 * 666643;
+    s12 += s23 * 470296;
+    s13 += s23 * 654183;
+    s14 -= s23 * 997805;
+    s15 += s23 * 136657;
+    s16 -= s23 * 683901;
+    s23 = 0;
+    s10 += s22 * 666643;
+    s11 += s22 * 470296;
+    s12 += s22 * 654183;
+    s13 -= s22 * 997805;
+    s14 += s22 * 136657;
+    s15 -= s22 * 683901;
+    s22 = 0;
+    s9 += s21 * 666643;
+    s10 += s21 * 470296;
+    s11 += s21 * 654183;
+    s12 -= s21 * 997805;
+    s13 += s21 * 136657;
+    s14 -= s21 * 683901;
+    s21 = 0;
+    s8 += s20 * 666643;
+    s9 += s20 * 470296;
+    s10 += s20 * 654183;
+    s11 -= s20 * 997805;
+    s12 += s20 * 136657;
+    s13 -= s20 * 683901;
+    s20 = 0;
+    s7 += s19 * 666643;
+    s8 += s19 * 470296;
+    s9 += s19 * 654183;
+    s10 -= s19 * 997805;
+    s11 += s19 * 136657;
+    s12 -= s19 * 683901;
+    s19 = 0;
+    s6 += s18 * 666643;
+    s7 += s18 * 470296;
+    s8 += s18 * 654183;
+    s9 -= s18 * 997805;
+    s10 += s18 * 136657;
+    s11 -= s18 * 683901;
+    s18 = 0;
+    carry6 = (s6 + (1 << 20)) >> 21;
+    s7 += carry6;
+    s6 -= carry6 << 21;
+    carry8 = (s8 + (1 << 20)) >> 21;
+    s9 += carry8;
+    s8 -= carry8 << 21;
+    carry10 = (s10 + (1 << 20)) >> 21;
+    s11 += carry10;
+    s10 -= carry10 << 21;
+    carry12 = (s12 + (1 << 20)) >> 21;
+    s13 += carry12;
+    s12 -= carry12 << 21;
+    carry14 = (s14 + (1 << 20)) >> 21;
+    s15 += carry14;
+    s14 -= carry14 << 21;
+    carry16 = (s16 + (1 << 20)) >> 21;
+    s17 += carry16;
+    s16 -= carry16 << 21;
+    carry7 = (s7 + (1 << 20)) >> 21;
+    s8 += carry7;
+    s7 -= carry7 << 21;
+    carry9 = (s9 + (1 << 20)) >> 21;
+    s10 += carry9;
+    s9 -= carry9 << 21;
+    carry11 = (s11 + (1 << 20)) >> 21;
+    s12 += carry11;
+    s11 -= carry11 << 21;
+    carry13 = (s13 + (1 << 20)) >> 21;
+    s14 += carry13;
+    s13 -= carry13 << 21;
+    carry15 = (s15 + (1 << 20)) >> 21;
+    s16 += carry15;
+    s15 -= carry15 << 21;
+    s5 += s17 * 666643;
+    s6 += s17 * 470296;
+    s7 += s17 * 654183;
+    s8 -= s17 * 997805;
+    s9 += s17 * 136657;
+    s10 -= s17 * 683901;
+    s17 = 0;
+    s4 += s16 * 666643;
+    s5 += s16 * 470296;
+    s6 += s16 * 654183;
+    s7 -= s16 * 997805;
+    s8 += s16 * 136657;
+    s9 -= s16 * 683901;
+    s16 = 0;
+    s3 += s15 * 666643;
+    s4 += s15 * 470296;
+    s5 += s15 * 654183;
+    s6 -= s15 * 997805;
+    s7 += s15 * 136657;
+    s8 -= s15 * 683901;
+    s15 = 0;
+    s2 += s14 * 666643;
+    s3 += s14 * 470296;
+    s4 += s14 * 654183;
+    s5 -= s14 * 997805;
+    s6 += s14 * 136657;
+    s7 -= s14 * 683901;
+    s14 = 0;
+    s1 += s13 * 666643;
+    s2 += s13 * 470296;
+    s3 += s13 * 654183;
+    s4 -= s13 * 997805;
+    s5 += s13 * 136657;
+    s6 -= s13 * 683901;
+    s13 = 0;
+    s0 += s12 * 666643;
+    s1 += s12 * 470296;
+    s2 += s12 * 654183;
+    s3 -= s12 * 997805;
+    s4 += s12 * 136657;
+    s5 -= s12 * 683901;
+    s12 = 0;
+    carry0 = (s0 + (1 << 20)) >> 21;
+    s1 += carry0;
+    s0 -= carry0 << 21;
+    carry2 = (s2 + (1 << 20)) >> 21;
+    s3 += carry2;
+    s2 -= carry2 << 21;
+    carry4 = (s4 + (1 << 20)) >> 21;
+    s5 += carry4;
+    s4 -= carry4 << 21;
+    carry6 = (s6 + (1 << 20)) >> 21;
+    s7 += carry6;
+    s6 -= carry6 << 21;
+    carry8 = (s8 + (1 << 20)) >> 21;
+    s9 += carry8;
+    s8 -= carry8 << 21;
+    carry10 = (s10 + (1 << 20)) >> 21;
+    s11 += carry10;
+    s10 -= carry10 << 21;
+    carry1 = (s1 + (1 << 20)) >> 21;
+    s2 += carry1;
+    s1 -= carry1 << 21;
+    carry3 = (s3 + (1 << 20)) >> 21;
+    s4 += carry3;
+    s3 -= carry3 << 21;
+    carry5 = (s5 + (1 << 20)) >> 21;
+    s6 += carry5;
+    s5 -= carry5 << 21;
+    carry7 = (s7 + (1 << 20)) >> 21;
+    s8 += carry7;
+    s7 -= carry7 << 21;
+    carry9 = (s9 + (1 << 20)) >> 21;
+    s10 += carry9;
+    s9 -= carry9 << 21;
+    carry11 = (s11 + (1 << 20)) >> 21;
+    s12 += carry11;
+    s11 -= carry11 << 21;
+    s0 += s12 * 666643;
+    s1 += s12 * 470296;
+    s2 += s12 * 654183;
+    s3 -= s12 * 997805;
+    s4 += s12 * 136657;
+    s5 -= s12 * 683901;
+    s12 = 0;
+    carry0 = s0 >> 21;
+    s1 += carry0;
+    s0 -= carry0 << 21;
+    carry1 = s1 >> 21;
+    s2 += carry1;
+    s1 -= carry1 << 21;
+    carry2 = s2 >> 21;
+    s3 += carry2;
+    s2 -= carry2 << 21;
+    carry3 = s3 >> 21;
+    s4 += carry3;
+    s3 -= carry3 << 21;
+    carry4 = s4 >> 21;
+    s5 += carry4;
+    s4 -= carry4 << 21;
+    carry5 = s5 >> 21;
+    s6 += carry5;
+    s5 -= carry5 << 21;
+    carry6 = s6 >> 21;
+    s7 += carry6;
+    s6 -= carry6 << 21;
+    carry7 = s7 >> 21;
+    s8 += carry7;
+    s7 -= carry7 << 21;
+    carry8 = s8 >> 21;
+    s9 += carry8;
+    s8 -= carry8 << 21;
+    carry9 = s9 >> 21;
+    s10 += carry9;
+    s9 -= carry9 << 21;
+    carry10 = s10 >> 21;
+    s11 += carry10;
+    s10 -= carry10 << 21;
+    carry11 = s11 >> 21;
+    s12 += carry11;
+    s11 -= carry11 << 21;
+    s0 += s12 * 666643;
+    s1 += s12 * 470296;
+    s2 += s12 * 654183;
+    s3 -= s12 * 997805;
+    s4 += s12 * 136657;
+    s5 -= s12 * 683901;
+    s12 = 0;
+    carry0 = s0 >> 21;
+    s1 += carry0;
+    s0 -= carry0 << 21;
+    carry1 = s1 >> 21;
+    s2 += carry1;
+    s1 -= carry1 << 21;
+    carry2 = s2 >> 21;
+    s3 += carry2;
+    s2 -= carry2 << 21;
+    carry3 = s3 >> 21;
+    s4 += carry3;
+    s3 -= carry3 << 21;
+    carry4 = s4 >> 21;
+    s5 += carry4;
+    s4 -= carry4 << 21;
+    carry5 = s5 >> 21;
+    s6 += carry5;
+    s5 -= carry5 << 21;
+    carry6 = s6 >> 21;
+    s7 += carry6;
+    s6 -= carry6 << 21;
+    carry7 = s7 >> 21;
+    s8 += carry7;
+    s7 -= carry7 << 21;
+    carry8 = s8 >> 21;
+    s9 += carry8;
+    s8 -= carry8 << 21;
+    carry9 = s9 >> 21;
+    s10 += carry9;
+    s9 -= carry9 << 21;
+    carry10 = s10 >> 21;
+    s11 += carry10;
+    s10 -= carry10 << 21;
+    
+    s[0] = (unsigned char) (s0 >> 0);
+    s[1] = (unsigned char) (s0 >> 8);
+    s[2] = (unsigned char) ((s0 >> 16) | (s1 << 5));
+    s[3] = (unsigned char) (s1 >> 3);
+    s[4] = (unsigned char) (s1 >> 11);
+    s[5] = (unsigned char) ((s1 >> 19) | (s2 << 2));
+    s[6] = (unsigned char) (s2 >> 6);
+    s[7] = (unsigned char) ((s2 >> 14) | (s3 << 7));
+    s[8] = (unsigned char) (s3 >> 1);
+    s[9] = (unsigned char) (s3 >> 9);
+    s[10] = (unsigned char) ((s3 >> 17) | (s4 << 4));
+    s[11] = (unsigned char) (s4 >> 4);
+    s[12] = (unsigned char) (s4 >> 12);
+    s[13] = (unsigned char) ((s4 >> 20) | (s5 << 1));
+    s[14] = (unsigned char) (s5 >> 7);
+    s[15] = (unsigned char) ((s5 >> 15) | (s6 << 6));
+    s[16] = (unsigned char) (s6 >> 2);
+    s[17] = (unsigned char) (s6 >> 10);
+    s[18] = (unsigned char) ((s6 >> 18) | (s7 << 3));
+    s[19] = (unsigned char) (s7 >> 5);
+    s[20] = (unsigned char) (s7 >> 13);
+    s[21] = (unsigned char) (s8 >> 0);
+    s[22] = (unsigned char) (s8 >> 8);
+    s[23] = (unsigned char) ((s8 >> 16) | (s9 << 5));
+    s[24] = (unsigned char) (s9 >> 3);
+    s[25] = (unsigned char) (s9 >> 11);
+    s[26] = (unsigned char) ((s9 >> 19) | (s10 << 2));
+    s[27] = (unsigned char) (s10 >> 6);
+    s[28] = (unsigned char) ((s10 >> 14) | (s11 << 7));
+    s[29] = (unsigned char) (s11 >> 1);
+    s[30] = (unsigned char) (s11 >> 9);
+    s[31] = (unsigned char) (s11 >> 17);
+}
@@ -0,0 +1,12 @@
+#ifndef SC_H
+#define SC_H
+
+/*
+The set of scalars is \Z/l
+where l = 2^252 + 27742317777372353535851937790883648493.
+*/
+
+void sc_reduce(unsigned char *s);
+void sc_muladd(unsigned char *s, const unsigned char *a, const unsigned char *b, const unsigned char *c);
+
+#endif
@@ -0,0 +1,40 @@
+#include "ed_25519.h"
+
+#ifndef ED25519_NO_SEED
+
+#ifdef _WIN32
+#include <windows.h>
+#include <wincrypt.h>
+#else
+#include <stdio.h>
+#endif
+
+int ed25519_create_seed(unsigned char *seed) {
+#ifdef _WIN32
+    HCRYPTPROV prov;
+
+    if (!CryptAcquireContext(&prov, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))  {
+        return 1;
+    }
+
+    if (!CryptGenRandom(prov, 32, seed))  {
+        CryptReleaseContext(prov, 0);
+        return 1;
+    }
+
+    CryptReleaseContext(prov, 0);
+#else
+    FILE *f = fopen("/dev/urandom", "rb");
+
+    if (f == NULL) {
+        return 1;
+    }
+
+    fread(seed, 1, 32, f);
+    fclose(f);
+#endif
+
+    return 0;
+}
+
+#endif
@@ -0,0 +1,275 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis
+ *
+ * LibTomCrypt is a library that provides various cryptographic
+ * algorithms in a highly modular and flexible manner.
+ *
+ * The library is free for all purposes without any express
+ * guarantee it works.
+ *
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
+ */
+
+#include "fixedint.h"
+#include "sha512.h"
+
+/* the K array */
+static const uint64_t K[80] = {
+    UINT64_C(0x428a2f98d728ae22), UINT64_C(0x7137449123ef65cd), 
+    UINT64_C(0xb5c0fbcfec4d3b2f), UINT64_C(0xe9b5dba58189dbbc),
+    UINT64_C(0x3956c25bf348b538), UINT64_C(0x59f111f1b605d019), 
+    UINT64_C(0x923f82a4af194f9b), UINT64_C(0xab1c5ed5da6d8118),
+    UINT64_C(0xd807aa98a3030242), UINT64_C(0x12835b0145706fbe), 
+    UINT64_C(0x243185be4ee4b28c), UINT64_C(0x550c7dc3d5ffb4e2),
+    UINT64_C(0x72be5d74f27b896f), UINT64_C(0x80deb1fe3b1696b1), 
+    UINT64_C(0x9bdc06a725c71235), UINT64_C(0xc19bf174cf692694),
+    UINT64_C(0xe49b69c19ef14ad2), UINT64_C(0xefbe4786384f25e3), 
+    UINT64_C(0x0fc19dc68b8cd5b5), UINT64_C(0x240ca1cc77ac9c65),
+    UINT64_C(0x2de92c6f592b0275), UINT64_C(0x4a7484aa6ea6e483), 
+    UINT64_C(0x5cb0a9dcbd41fbd4), UINT64_C(0x76f988da831153b5),
+    UINT64_C(0x983e5152ee66dfab), UINT64_C(0xa831c66d2db43210), 
+    UINT64_C(0xb00327c898fb213f), UINT64_C(0xbf597fc7beef0ee4),
+    UINT64_C(0xc6e00bf33da88fc2), UINT64_C(0xd5a79147930aa725), 
+    UINT64_C(0x06ca6351e003826f), UINT64_C(0x142929670a0e6e70),
+    UINT64_C(0x27b70a8546d22ffc), UINT64_C(0x2e1b21385c26c926), 
+    UINT64_C(0x4d2c6dfc5ac42aed), UINT64_C(0x53380d139d95b3df),
+    UINT64_C(0x650a73548baf63de), UINT64_C(0x766a0abb3c77b2a8), 
+    UINT64_C(0x81c2c92e47edaee6), UINT64_C(0x92722c851482353b),
+    UINT64_C(0xa2bfe8a14cf10364), UINT64_C(0xa81a664bbc423001),
+    UINT64_C(0xc24b8b70d0f89791), UINT64_C(0xc76c51a30654be30),
+    UINT64_C(0xd192e819d6ef5218), UINT64_C(0xd69906245565a910), 
+    UINT64_C(0xf40e35855771202a), UINT64_C(0x106aa07032bbd1b8),
+    UINT64_C(0x19a4c116b8d2d0c8), UINT64_C(0x1e376c085141ab53), 
+    UINT64_C(0x2748774cdf8eeb99), UINT64_C(0x34b0bcb5e19b48a8),
+    UINT64_C(0x391c0cb3c5c95a63), UINT64_C(0x4ed8aa4ae3418acb), 
+    UINT64_C(0x5b9cca4f7763e373), UINT64_C(0x682e6ff3d6b2b8a3),
+    UINT64_C(0x748f82ee5defb2fc), UINT64_C(0x78a5636f43172f60), 
+    UINT64_C(0x84c87814a1f0ab72), UINT64_C(0x8cc702081a6439ec),
+    UINT64_C(0x90befffa23631e28), UINT64_C(0xa4506cebde82bde9), 
+    UINT64_C(0xbef9a3f7b2c67915), UINT64_C(0xc67178f2e372532b),
+    UINT64_C(0xca273eceea26619c), UINT64_C(0xd186b8c721c0c207), 
+    UINT64_C(0xeada7dd6cde0eb1e), UINT64_C(0xf57d4f7fee6ed178),
+    UINT64_C(0x06f067aa72176fba), UINT64_C(0x0a637dc5a2c898a6), 
+    UINT64_C(0x113f9804bef90dae), UINT64_C(0x1b710b35131c471b),
+    UINT64_C(0x28db77f523047d84), UINT64_C(0x32caab7b40c72493), 
+    UINT64_C(0x3c9ebe0a15c9bebc), UINT64_C(0x431d67c49c100d4c),
+    UINT64_C(0x4cc5d4becb3e42b6), UINT64_C(0x597f299cfc657e2a), 
+    UINT64_C(0x5fcb6fab3ad6faec), UINT64_C(0x6c44198c4a475817)
+};
+
+/* Various logical functions */
+
+#define ROR64c(x, y) \
+    ( ((((x)&UINT64_C(0xFFFFFFFFFFFFFFFF))>>((uint64_t)(y)&UINT64_C(63))) | \
+      ((x)<<((uint64_t)(64-((y)&UINT64_C(63)))))) & UINT64_C(0xFFFFFFFFFFFFFFFF))
+
+#define STORE64H(x, y)                                                                     \
+   { (y)[0] = (unsigned char)(((x)>>56)&255); (y)[1] = (unsigned char)(((x)>>48)&255);     \
+     (y)[2] = (unsigned char)(((x)>>40)&255); (y)[3] = (unsigned char)(((x)>>32)&255);     \
+     (y)[4] = (unsigned char)(((x)>>24)&255); (y)[5] = (unsigned char)(((x)>>16)&255);     \
+     (y)[6] = (unsigned char)(((x)>>8)&255); (y)[7] = (unsigned char)((x)&255); }
+
+#define LOAD64H(x, y)                                                      \
+   { x = (((uint64_t)((y)[0] & 255))<<56)|(((uint64_t)((y)[1] & 255))<<48) | \
+         (((uint64_t)((y)[2] & 255))<<40)|(((uint64_t)((y)[3] & 255))<<32) | \
+         (((uint64_t)((y)[4] & 255))<<24)|(((uint64_t)((y)[5] & 255))<<16) | \
+         (((uint64_t)((y)[6] & 255))<<8)|(((uint64_t)((y)[7] & 255))); }
+
+
+#define Ch(x,y,z)       (z ^ (x & (y ^ z)))
+#define Maj(x,y,z)      (((x | y) & z) | (x & y)) 
+#define S(x, n)         ROR64c(x, n)
+#define R(x, n)         (((x) &UINT64_C(0xFFFFFFFFFFFFFFFF))>>((uint64_t)n))
+#define Sigma0(x)       (S(x, 28) ^ S(x, 34) ^ S(x, 39))
+#define Sigma1(x)       (S(x, 14) ^ S(x, 18) ^ S(x, 41))
+#define Gamma0(x)       (S(x, 1) ^ S(x, 8) ^ R(x, 7))
+#define Gamma1(x)       (S(x, 19) ^ S(x, 61) ^ R(x, 6))
+#ifndef MIN
+   #define MIN(x, y) ( ((x)<(y))?(x):(y) )
+#endif
+
+/* compress 1024-bits */
+static int sha512_compress(sha512_context *md, unsigned char *buf)
+{
+    uint64_t S[8], W[80], t0, t1;
+    int i;
+
+    /* copy state into S */
+    for (i = 0; i < 8; i++) {
+        S[i] = md->state[i];
+    }
+
+    /* copy the state into 1024-bits into W[0..15] */
+    for (i = 0; i < 16; i++) {
+        LOAD64H(W[i], buf + (8*i));
+    }
+
+    /* fill W[16..79] */
+    for (i = 16; i < 80; i++) {
+        W[i] = Gamma1(W[i - 2]) + W[i - 7] + Gamma0(W[i - 15]) + W[i - 16];
+    }        
+
+/* Compress */
+    #define RND(a,b,c,d,e,f,g,h,i) \
+    t0 = h + Sigma1(e) + Ch(e, f, g) + K[i] + W[i]; \
+    t1 = Sigma0(a) + Maj(a, b, c);\
+    d += t0; \
+    h  = t0 + t1;
+
+    for (i = 0; i < 80; i += 8) {
+       RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],i+0);
+       RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],i+1);
+       RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],i+2);
+       RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],i+3);
+       RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],i+4);
+       RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],i+5);
+       RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],i+6);
+       RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],i+7);
+   }
+
+   #undef RND
+
+
+
+    /* feedback */
+   for (i = 0; i < 8; i++) {
+        md->state[i] = md->state[i] + S[i];
+    }
+
+    return 0;
+}
+
+
+/**
+   Initialize the hash state
+   @param md   The hash state you wish to initialize
+   @return 0 if successful
+*/
+int sha512_init(sha512_context * md) {
+    if (md == NULL) return 1;
+
+    md->curlen = 0;
+    md->length = 0;
+    md->state[0] = UINT64_C(0x6a09e667f3bcc908);
+    md->state[1] = UINT64_C(0xbb67ae8584caa73b);
+    md->state[2] = UINT64_C(0x3c6ef372fe94f82b);
+    md->state[3] = UINT64_C(0xa54ff53a5f1d36f1);
+    md->state[4] = UINT64_C(0x510e527fade682d1);
+    md->state[5] = UINT64_C(0x9b05688c2b3e6c1f);
+    md->state[6] = UINT64_C(0x1f83d9abfb41bd6b);
+    md->state[7] = UINT64_C(0x5be0cd19137e2179);
+
+    return 0;
+}
+
+/**
+   Process a block of memory though the hash
+   @param md     The hash state
+   @param in     The data to hash
+   @param inlen  The length of the data (octets)
+   @return 0 if successful
+*/
+int sha512_update (sha512_context * md, const unsigned char *in, size_t inlen)               
+{                                                                                           
+    size_t n;
+    size_t i;                                                                        
+    int           err;     
+    if (md == NULL) return 1;  
+    if (in == NULL) return 1;                                                              
+    if (md->curlen > sizeof(md->buf)) {                             
+       return 1;                                                            
+    }                                                                                       
+    while (inlen > 0) {                                                                     
+        if (md->curlen == 0 && inlen >= 128) {                           
+           if ((err = sha512_compress (md, (unsigned char *)in)) != 0) {               
+              return err;                                                                   
+           }                                                                                
+           md->length += 128 * 8;                                        
+           in             += 128;                                                    
+           inlen          -= 128;                                                    
+        } else {                                                                            
+           n = MIN(inlen, (128 - md->curlen));
+
+           for (i = 0; i < n; i++) {
+            md->buf[i + md->curlen] = in[i];
+           }
+
+
+           md->curlen += n;                                                     
+           in             += n;                                                             
+           inlen          -= n;                                                             
+           if (md->curlen == 128) {                                      
+              if ((err = sha512_compress (md, md->buf)) != 0) {            
+                 return err;                                                                
+              }                                                                             
+              md->length += 8*128;                                       
+              md->curlen = 0;                                                   
+           }                                                                                
+       }                                                                                    
+    }                                                                                       
+    return 0;                                                                        
+}
+
+/**
+   Terminate the hash to get the digest
+   @param md  The hash state
+   @param out [out] The destination of the hash (64 bytes)
+   @return 0 if successful
+*/
+   int sha512_final(sha512_context * md, unsigned char *out)
+   {
+    int i;
+
+    if (md == NULL) return 1;
+    if (out == NULL) return 1;
+
+    if (md->curlen >= sizeof(md->buf)) {
+     return 1;
+ }
+
+    /* increase the length of the message */
+ md->length += md->curlen * UINT64_C(8);
+
+    /* append the '1' bit */
+ md->buf[md->curlen++] = (unsigned char)0x80;
+
+    /* if the length is currently above 112 bytes we append zeros
+     * then compress.  Then we can fall back to padding zeros and length
+     * encoding like normal.
+     */
+     if (md->curlen > 112) {
+        while (md->curlen < 128) {
+            md->buf[md->curlen++] = (unsigned char)0;
+        }
+        sha512_compress(md, md->buf);
+        md->curlen = 0;
+    }
+
+    /* pad upto 120 bytes of zeroes 
+     * note: that from 112 to 120 is the 64 MSB of the length.  We assume that you won't hash
+     * > 2^64 bits of data... :-)
+     */
+while (md->curlen < 120) {
+    md->buf[md->curlen++] = (unsigned char)0;
+}
+
+    /* store length */
+STORE64H(md->length, md->buf+120);
+sha512_compress(md, md->buf);
+
+    /* copy output */
+for (i = 0; i < 8; i++) {
+    STORE64H(md->state[i], out+(8*i));
+}
+
+return 0;
+}
+
+int sha512(const unsigned char *message, size_t message_len, unsigned char *out)
+{
+    sha512_context ctx;
+    int ret;
+    if ((ret = sha512_init(&ctx))) return ret;
+    if ((ret = sha512_update(&ctx, message, message_len))) return ret;
+    if ((ret = sha512_final(&ctx, out))) return ret;
+    return 0;
+}
@@ -0,0 +1,21 @@
+#ifndef SHA512_H
+#define SHA512_H
+
+#include <stddef.h>
+
+#include "fixedint.h"
+
+/* state */
+typedef struct sha512_context_ {
+    uint64_t  length, state[8];
+    size_t curlen;
+    unsigned char buf[128];
+} sha512_context;
+
+
+int sha512_init(sha512_context * md);
+int sha512_final(sha512_context * md, unsigned char *out);
+int sha512_update(sha512_context * md, const unsigned char *in, size_t inlen);
+int sha512(const unsigned char *message, size_t message_len, unsigned char *out);
+
+#endif
@@ -0,0 +1,31 @@
+#include "ed_25519.h"
+#include "sha512.h"
+#include "ge.h"
+#include "sc.h"
+
+
+void ed25519_sign(unsigned char *signature, const unsigned char *message, size_t message_len, const unsigned char *public_key, const unsigned char *private_key) {
+    sha512_context hash;
+    unsigned char hram[64];
+    unsigned char r[64];
+    ge_p3 R;
+
+
+    sha512_init(&hash);
+    sha512_update(&hash, private_key + 32, 32);
+    sha512_update(&hash, message, message_len);
+    sha512_final(&hash, r);
+
+    sc_reduce(r);
+    ge_scalarmult_base(&R, r);
+    ge_p3_tobytes(signature, &R);
+
+    sha512_init(&hash);
+    sha512_update(&hash, signature, 32);
+    sha512_update(&hash, public_key, 32);
+    sha512_update(&hash, message, message_len);
+    sha512_final(&hash, hram);
+
+    sc_reduce(hram);
+    sc_muladd(signature + 32, hram, private_key, r);
+}
@@ -0,0 +1,77 @@
+#include "ed_25519.h"
+#include "sha512.h"
+#include "ge.h"
+#include "sc.h"
+
+static int consttime_equal(const unsigned char *x, const unsigned char *y) {
+    unsigned char r = 0;
+
+    r = x[0] ^ y[0];
+    #define F(i) r |= x[i] ^ y[i]
+    F(1);
+    F(2);
+    F(3);
+    F(4);
+    F(5);
+    F(6);
+    F(7);
+    F(8);
+    F(9);
+    F(10);
+    F(11);
+    F(12);
+    F(13);
+    F(14);
+    F(15);
+    F(16);
+    F(17);
+    F(18);
+    F(19);
+    F(20);
+    F(21);
+    F(22);
+    F(23);
+    F(24);
+    F(25);
+    F(26);
+    F(27);
+    F(28);
+    F(29);
+    F(30);
+    F(31);
+    #undef F
+
+    return !r;
+}
+
+int ed25519_verify(const unsigned char *signature, const unsigned char *message, size_t message_len, const unsigned char *public_key) {
+    unsigned char h[64];
+    unsigned char checker[32];
+    sha512_context hash;
+    ge_p3 A;
+    ge_p2 R;
+
+    if (signature[63] & 224) {
+        return 0;
+    }
+
+    if (ge_frombytes_negate_vartime(&A, public_key) != 0) {
+        return 0;
+    }
+
+    sha512_init(&hash);
+    sha512_update(&hash, signature, 32);
+    sha512_update(&hash, public_key, 32);
+    sha512_update(&hash, message, message_len);
+    sha512_final(&hash, h);
+    
+    sc_reduce(h);
+    ge_double_scalarmult_vartime(&R, h, &A, signature + 32);
+    ge_tobytes(checker, &R);
+
+    if (!consttime_equal(checker, signature)) {
+        return 0;
+    }
+
+    return 1;
+}
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2025 Scott Powell / rippleradios.com
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
@@ -0,0 +1,48 @@
+#!/usr/bin/python3
+
+# Adds PlatformIO post-processing to merge all the ESP flash images into a single image.
+
+import os
+
+Import("env", "projenv")
+
+board_config = env.BoardConfig()
+firmware_bin = "${BUILD_DIR}/${PROGNAME}.bin"
+merged_bin = os.environ.get("MERGED_BIN_PATH", "${BUILD_DIR}/${PROGNAME}-merged.bin")
+
+
+def merge_bin_action(source, target, env):
+    flash_images = [
+        *env.Flatten(env.get("FLASH_EXTRA_IMAGES", [])),
+        "$ESP32_APP_OFFSET",
+        source[0].get_abspath(),
+    ]
+    merge_cmd = " ".join(
+        [
+            '"$PYTHONEXE"',
+            '"$OBJCOPY"',
+            "--chip",
+            board_config.get("build.mcu", "esp32"),
+            "merge_bin",
+            "-o",
+            merged_bin,
+            "--flash_mode",
+            board_config.get("build.flash_mode", "dio"),
+            "--flash_freq",
+            "${__get_board_f_flash(__env__)}",
+            "--flash_size",
+            board_config.get("upload.flash_size", "4MB"),
+            *flash_images,
+        ]
+    )
+    env.Execute(merge_cmd)
+
+
+env.AddCustomTarget(
+    name="mergebin",
+    dependencies=firmware_bin,
+    actions=merge_bin_action,
+    title="Merge binary",
+    description="Build combined image",
+    always_build=True,
+)
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-<h1 id="number-allocations">Number Allocations</h1>
-<p>This document lists unique numbers/identifiers used in various MeshCore protocol payloads.</p>
-<h1 id="group-data-types">Group Data Types</h1>
-<p>The <code>PAYLOAD_TYPE_GRP_DATA</code> payloads have a 16-bit data-type field, which identifies which application the packet is for.</p>
-<p>To make sure multiple applications can function without interfering with each other, the table below is for reserving various ranges of data-type values. Just modify this table, adding a row, then submit a PR to have it authorised/merged.</p>
-<p>NOTE: the range FF00 - FFFF is for use while you're developing, doing POC, and for these you don't need to request to use/allocate.</p>
-<p>Once you have a working app/project, you need to be able to demonstrate it exists/works, and THEN request type IDs. So, just use the testing/dev range while developing, then request IDs before you transition to publishing your project.</p>
-<table>
-<thead>
-<tr>
-<th>Data-Type range</th>
-<th>App name</th>
-<th>Contact</th>
-</tr>
-</thead>
-<tbody>
-<tr>
-<td>0000 - 00FF</td>
-<td>-reserved for internal use-</td>
-<td></td>
-</tr>
-<tr>
-<td>0100</td>
-<td>MeshCore Open</td>
-<td>zsylvester@monitormx.com — https://github.com/zjs81/meshcore-open</td>
-</tr>
-<tr>
-<td>0110 - 011F</td>
-<td>Ripple</td>
-<td>ripple_biz@protonmail.com — https://buymeacoffee.com/ripplebiz</td>
-</tr>
-<tr>
-<td>FF00 - FFFF</td>
-<td>-reserved for testing/dev-</td>
-<td></td>
-</tr>
-</tbody>
-</table>
-<p>(add rows, inside the range 0100 - FEFF for custom apps)</p>
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@@ -0,0 +1,522 @@
+; PlatformIO Project Configuration File
+;
+;   Build options: build flags, source filter
+;   Upload options: custom upload port, speed and extra flags
+;   Library options: dependencies, extra library storages
+;   Advanced options: extra scripting
+;
+; Please visit documentation for the other options and examples
+; https://docs.platformio.org/page/projectconf.html
+
+[arduino_base]
+framework = arduino
+monitor_speed = 115200
+lib_deps = 
+  SPI
+  Wire
+  jgromes/RadioLib @ ^6.3.0
+  rweather/Crypto @ ^0.4.0
+  adafruit/RTClib @ ^2.1.3
+  melopero/Melopero RV3028 @ ^1.1.0
+build_flags = -w -DNDEBUG -DRADIOLIB_STATIC_ONLY=1 -DRADIOLIB_GODMODE=1
+  -D LORA_FREQ=867.5
+  -D LORA_BW=250
+  -D LORA_SF=10
+build_src_filter = +<*.cpp> +<helpers/*.cpp>
+
+[esp32_base]
+extends = arduino_base
+platform = espressif32
+monitor_filters = esp32_exception_decoder
+extra_scripts = merge-bin.py
+build_src_filter = ${arduino_base.build_src_filter}
+
+; ================
+[Heltec_lora32_v2]
+extends = esp32_base
+board = heltec_wifi_lora_32_V2   ; heltec_wifi_lora_32_V2
+build_flags =
+  ${esp32_base.build_flags} 
+  -D HELTEC_LORA_V2
+  -D RADIO_CLASS=CustomSX1276
+  -D WRAPPER_CLASS=CustomSX1276Wrapper
+  -D LORA_TX_POWER=20
+  -D P_LORA_TX_LED=25
+build_src_filter = ${esp32_base.build_src_filter}
+
+[env:Heltec_v2_repeater]
+extends = Heltec_lora32_v2
+build_flags =
+  ${Heltec_lora32_v2.build_flags} 
+  -D ADVERT_NAME="\"Heltec Repeater\""
+  -D ADVERT_LAT=-37.0
+  -D ADVERT_LON=145.0
+  -D ADMIN_PASSWORD="\"password\""
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+build_src_filter = ${Heltec_lora32_v2.build_src_filter} +<../examples/simple_repeater/main.cpp>
+
+[env:Heltec_v2_terminal_chat]
+extends = Heltec_lora32_v2
+build_flags =
+  ${Heltec_lora32_v2.build_flags} 
+  -D MAX_CONTACTS=100
+  -D MAX_GROUP_CHANNELS=1
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+build_src_filter = ${Heltec_lora32_v2.build_src_filter} +<../examples/simple_secure_chat/main.cpp>
+lib_deps =
+  ${Heltec_lora32_v2.lib_deps}
+  densaugeo/base64 @ ~1.4.0
+
+[env:Heltec_v2_companion_radio_usb]
+extends = Heltec_lora32_v2
+build_flags =
+  ${Heltec_lora32_v2.build_flags} 
+  -D MAX_CONTACTS=100
+  -D MAX_GROUP_CHANNELS=1
+; NOTE: DO NOT ENABLE -->  -D MESH_PACKET_LOGGING=1
+; NOTE: DO NOT ENABLE -->  -D MESH_DEBUG=1
+build_src_filter = ${Heltec_lora32_v2.build_src_filter} +<helpers/esp32/*.cpp> +<../examples/companion_radio/main.cpp>
+lib_deps =
+  ${Heltec_lora32_v2.lib_deps}
+  densaugeo/base64 @ ~1.4.0
+
+[env:Heltec_v2_companion_radio_ble]
+extends = Heltec_lora32_v2
+build_flags =
+  ${Heltec_lora32_v2.build_flags} 
+  -D MAX_CONTACTS=100
+  -D MAX_GROUP_CHANNELS=1
+  -D BLE_PIN_CODE=123456
+  -D BLE_DEBUG_LOGGING=1
+;  -D ENABLE_PRIVATE_KEY_IMPORT=1
+;  -D ENABLE_PRIVATE_KEY_EXPORT=1
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+build_src_filter = ${Heltec_lora32_v2.build_src_filter} +<helpers/esp32/*.cpp> +<../examples/companion_radio/main.cpp>
+lib_deps =
+  ${Heltec_lora32_v2.lib_deps}
+  densaugeo/base64 @ ~1.4.0
+
+
+; ================
+[Heltec_lora32_v3]
+extends = esp32_base
+board = esp32-s3-devkitc-1
+build_flags =
+  ${esp32_base.build_flags} 
+  -D HELTEC_LORA_V3
+  -D RADIO_CLASS=CustomSX1262
+  -D WRAPPER_CLASS=CustomSX1262Wrapper
+  -D LORA_TX_POWER=22
+  -D P_LORA_TX_LED=35
+  -D SX126X_DIO2_AS_RF_SWITCH=true
+  -D SX126X_DIO3_TCXO_VOLTAGE=1.8
+  -D SX126X_CURRENT_LIMIT=130.0f  ; for best TX power!
+build_src_filter = ${esp32_base.build_src_filter}
+
+[env:Heltec_v3_repeater]
+extends = Heltec_lora32_v3
+build_flags =
+  ${Heltec_lora32_v3.build_flags} 
+  -D ADVERT_NAME="\"Heltec Repeater\""
+  -D ADVERT_LAT=-37.0
+  -D ADVERT_LON=145.0
+  -D ADMIN_PASSWORD="\"password\""
+  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+build_src_filter = ${Heltec_lora32_v3.build_src_filter} +<../examples/simple_repeater/main.cpp>
+
+[env:Heltec_v3_room_server]
+extends = Heltec_lora32_v3
+build_src_filter = ${Heltec_lora32_v3.build_src_filter} +<../examples/simple_room_server/main.cpp>
+build_flags =
+  ${Heltec_lora32_v3.build_flags} 
+  -D ADVERT_NAME="\"Heltec Room\""
+  -D ADVERT_LAT=-37.0
+  -D ADVERT_LON=145.0
+  -D ADMIN_PASSWORD="\"password\""
+  -D ROOM_PASSWORD="\"hello\""
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+
+[env:Heltec_v3_terminal_chat]
+extends = Heltec_lora32_v3
+build_flags =
+  ${Heltec_lora32_v3.build_flags} 
+  -D MAX_CONTACTS=100
+  -D MAX_GROUP_CHANNELS=1
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+build_src_filter = ${Heltec_lora32_v3.build_src_filter} +<../examples/simple_secure_chat/main.cpp>
+lib_deps =
+  ${Heltec_lora32_v3.lib_deps}
+  densaugeo/base64 @ ~1.4.0
+
+[env:Heltec_v3_companion_radio_usb]
+extends = Heltec_lora32_v3
+build_flags =
+  ${Heltec_lora32_v3.build_flags} 
+  -D MAX_CONTACTS=100
+  -D MAX_GROUP_CHANNELS=1
+;  -D ENABLE_PRIVATE_KEY_IMPORT=1
+;  -D ENABLE_PRIVATE_KEY_EXPORT=1
+; NOTE: DO NOT ENABLE -->  -D MESH_PACKET_LOGGING=1
+; NOTE: DO NOT ENABLE -->  -D MESH_DEBUG=1
+build_src_filter = ${Heltec_lora32_v3.build_src_filter} +<../examples/companion_radio/main.cpp>
+lib_deps =
+  ${Heltec_lora32_v3.lib_deps}
+  densaugeo/base64 @ ~1.4.0
+
+[env:Heltec_v3_companion_radio_ble]
+extends = Heltec_lora32_v3
+build_flags =
+  ${Heltec_lora32_v3.build_flags} 
+  -D MAX_CONTACTS=100
+  -D MAX_GROUP_CHANNELS=1
+  -D BLE_PIN_CODE=123456
+  -D BLE_DEBUG_LOGGING=1
+;  -D ENABLE_PRIVATE_KEY_IMPORT=1
+;  -D ENABLE_PRIVATE_KEY_EXPORT=1
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+build_src_filter = ${Heltec_lora32_v3.build_src_filter} +<helpers/esp32/*.cpp> +<../examples/companion_radio/main.cpp>
+lib_deps =
+  ${Heltec_lora32_v3.lib_deps}
+  densaugeo/base64 @ ~1.4.0
+
+; ================
+[Xiao_esp32_C3]
+extends = esp32_base
+board = seeed_xiao_esp32c3
+build_flags =
+  ${esp32_base.build_flags} 
+  -D LORA_TX_BOOST_PIN=D3
+  -D P_LORA_TX_LED=D5
+  -D PIN_VBAT_READ=D0
+  -D P_LORA_DIO_1=D2
+  -D P_LORA_NSS=D4
+  -D P_LORA_RESET=RADIOLIB_NC
+  -D P_LORA_BUSY=D1
+  -D PIN_BOARD_SDA=D6
+  -D PIN_BOARD_SCL=D7
+  -D SX126X_DIO2_AS_RF_SWITCH=true
+  -D SX126X_DIO3_TCXO_VOLTAGE=1.8
+  -D SX126X_CURRENT_LIMIT=130.0f  ; for best TX power!
+
+[env:Xiao_C3_Repeater_sx1262]
+extends = Xiao_esp32_C3
+build_src_filter = ${Xiao_esp32_C3.build_src_filter} +<../examples/simple_repeater/main.cpp>
+build_flags =
+  ${Xiao_esp32_C3.build_flags} 
+  -D RADIO_CLASS=CustomSX1262
+  -D WRAPPER_CLASS=CustomSX1262Wrapper
+  -D LORA_TX_POWER=22
+  -D ADVERT_NAME="\"Xiao Repeater\""
+  -D ADVERT_LAT=-37.0
+  -D ADVERT_LON=145.0
+  -D ADMIN_PASSWORD="\"password\""
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+
+[env:Xiao_C3_Repeater_sx1268]
+extends = Xiao_esp32_C3
+build_src_filter = ${Xiao_esp32_C3.build_src_filter} +<../examples/simple_repeater/main.cpp>
+build_flags =
+  ${Xiao_esp32_C3.build_flags} 
+  -D RADIO_CLASS=CustomSX1268
+  -D WRAPPER_CLASS=CustomSX1268Wrapper
+  -D LORA_TX_POWER=22
+  -D ADVERT_NAME="\"Xiao Repeater\""
+  -D ADVERT_LAT=-37.0
+  -D ADVERT_LON=145.0
+  -D ADMIN_PASSWORD="\"password\""
+ ; -D MESH_PACKET_LOGGING=1
+ ; -D MESH_DEBUG=1
+
+; =============
+[Xiao_S3_WIO]
+extends = esp32_base
+board = seeed_xiao_esp32s3
+board_check = true
+board_build.mcu = esp32s3
+build_flags = ${esp32_base.build_flags}
+  -D SEEED_XIAO_S3
+  -D P_LORA_DIO_1=39
+  -D P_LORA_NSS=41
+  -D P_LORA_RESET=42   ; RADIOLIB_NC
+  -D P_LORA_BUSY=40   ;  DIO2 = 38
+  -D P_LORA_SCLK=7
+  -D P_LORA_MISO=8
+  -D P_LORA_MOSI=9
+  -D SX126X_DIO2_AS_RF_SWITCH=true
+  -D SX126X_DIO3_TCXO_VOLTAGE=1.8
+  -D SX126X_CURRENT_LIMIT=130
+  -D RADIO_CLASS=CustomSX1262
+  -D WRAPPER_CLASS=CustomSX1262Wrapper
+  -D LORA_TX_POWER=22
+
+[env:Xiao_S3_WIO_Repeater]
+extends = Xiao_S3_WIO
+build_src_filter = ${Xiao_S3_WIO.build_src_filter} +<../examples/simple_repeater/main.cpp>
+build_flags =
+  ${Xiao_S3_WIO.build_flags} 
+  -D ADVERT_NAME="\"XiaoS3 Repeater\""
+  -D ADVERT_LAT=-37.0
+  -D ADVERT_LON=145.0
+  -D ADMIN_PASSWORD="\"password\""
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+
+[env:Xiao_S3_WIO_terminal_chat]
+extends = Xiao_S3_WIO
+build_flags =
+  ${Xiao_S3_WIO.build_flags} 
+  -D MAX_CONTACTS=100
+  -D MAX_GROUP_CHANNELS=1
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+build_src_filter = ${Xiao_S3_WIO.build_src_filter} +<../examples/simple_secure_chat/main.cpp>
+lib_deps =
+  ${Xiao_S3_WIO.lib_deps}
+  densaugeo/base64 @ ~1.4.0
+
+[env:Xiao_S3_WIO_companion_radio_ble]
+extends = Xiao_S3_WIO
+build_flags =
+  ${Xiao_S3_WIO.build_flags} 
+  -D MAX_CONTACTS=100
+  -D MAX_GROUP_CHANNELS=1
+  -D BLE_PIN_CODE=123456
+;  -D BLE_DEBUG_LOGGING=1
+;  -D ENABLE_PRIVATE_KEY_IMPORT=1
+;  -D ENABLE_PRIVATE_KEY_EXPORT=1
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+build_src_filter = ${Xiao_S3_WIO.build_src_filter} +<helpers/esp32/*.cpp> +<../examples/companion_radio/main.cpp>
+lib_deps =
+  ${Xiao_S3_WIO.lib_deps}
+  densaugeo/base64 @ ~1.4.0
+
+; =============
+[LilyGo_T3S3_sx1262]
+extends = esp32_base
+board = t3_s3_v1_x
+build_flags = ${esp32_base.build_flags}
+  -D LILYGO_T3S3
+  -D P_LORA_DIO_1=33
+  -D P_LORA_NSS=7
+  -D P_LORA_RESET=8   ; RADIOLIB_NC
+  -D P_LORA_BUSY=34
+  -D P_LORA_SCLK=5
+  -D P_LORA_MISO=3
+  -D P_LORA_MOSI=6
+  -D P_LORA_TX_LED=37
+  -D PIN_VBAT_READ=1
+  -D SX126X_DIO2_AS_RF_SWITCH=true
+  -D SX126X_DIO3_TCXO_VOLTAGE=1.8
+  -D SX126X_CURRENT_LIMIT=130
+  -D RADIO_CLASS=CustomSX1262
+  -D WRAPPER_CLASS=CustomSX1262Wrapper
+  -D LORA_TX_POWER=22
+
+[env:LilyGo_T3S3_sx1262_Repeater]
+extends = LilyGo_T3S3_sx1262
+build_src_filter = ${LilyGo_T3S3_sx1262.build_src_filter} +<../examples/simple_repeater/main.cpp>
+build_flags =
+  ${LilyGo_T3S3_sx1262.build_flags} 
+  -D ADVERT_NAME="\"T3S3 Repeater\""
+  -D ADVERT_LAT=-37.0
+  -D ADVERT_LON=145.0
+  -D ADMIN_PASSWORD="\"password\""
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+
+[env:LilyGo_T3S3_sx1262_terminal_chat]
+extends = LilyGo_T3S3_sx1262
+build_flags =
+  ${LilyGo_T3S3_sx1262.build_flags} 
+  -D MAX_CONTACTS=100
+  -D MAX_GROUP_CHANNELS=1
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+build_src_filter = ${LilyGo_T3S3_sx1262.build_src_filter} +<../examples/simple_secure_chat/main.cpp>
+lib_deps =
+  ${LilyGo_T3S3_sx1262.lib_deps}
+  densaugeo/base64 @ ~1.4.0
+
+[env:LilyGo_T3S3_sx1262_companion_radio_usb]
+extends = LilyGo_T3S3_sx1262
+build_flags =
+  ${LilyGo_T3S3_sx1262.build_flags} 
+  -D MAX_CONTACTS=100
+  -D MAX_GROUP_CHANNELS=1
+;  -D ENABLE_PRIVATE_KEY_IMPORT=1
+;  -D ENABLE_PRIVATE_KEY_EXPORT=1
+; NOTE: DO NOT ENABLE -->  -D MESH_PACKET_LOGGING=1
+; NOTE: DO NOT ENABLE -->  -D MESH_DEBUG=1
+build_src_filter = ${LilyGo_T3S3_sx1262.build_src_filter} +<../examples/companion_radio/main.cpp>
+lib_deps =
+  ${LilyGo_T3S3_sx1262.lib_deps}
+  densaugeo/base64 @ ~1.4.0
+
+[env:LilyGo_T3S3_sx1262_companion_radio_ble]
+extends = LilyGo_T3S3_sx1262
+build_flags =
+  ${LilyGo_T3S3_sx1262.build_flags} 
+  -D MAX_CONTACTS=100
+  -D MAX_GROUP_CHANNELS=1
+  -D BLE_PIN_CODE=123456
+  -D BLE_DEBUG_LOGGING=1
+;  -D ENABLE_PRIVATE_KEY_IMPORT=1
+;  -D ENABLE_PRIVATE_KEY_EXPORT=1
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+build_src_filter = ${LilyGo_T3S3_sx1262.build_src_filter} +<helpers/esp32/*.cpp> +<../examples/companion_radio/main.cpp>
+lib_deps =
+  ${LilyGo_T3S3_sx1262.lib_deps}
+  densaugeo/base64 @ ~1.4.0
+
+; ----------------- NRF52 ---------------------
+[nrf52_base]
+extends = arduino_base
+platform = nordicnrf52
+build_flags = ${arduino_base.build_flags}
+  -D NRF52_PLATFORM
+
+[nrf52840_base]
+extends = nrf52_base
+build_flags = ${nrf52_base.build_flags} 
+lib_deps =
+  ${nrf52_base.lib_deps}
+  rweather/Crypto @ ^0.4.0
+  https://github.com/adafruit/Adafruit_nRF52_Arduino
+
+[rak4631]
+extends = nrf52840_base
+platform = https://github.com/maxgerhardt/platform-nordicnrf52.git#rak
+board = wiscore_rak4631
+board_check = true
+build_src_filter = ${nrf52840_base.build_src_filter}  +<helpers/nrf52/*.cpp>
+build_flags = ${nrf52840_base.build_flags}
+  -D RAK_4631
+  -D RADIO_CLASS=CustomSX1262
+  -D WRAPPER_CLASS=CustomSX1262Wrapper
+  -D LORA_TX_POWER=22
+  -D SX126X_CURRENT_LIMIT=130
+
+[env:RAK_4631_Repeater]
+extends = rak4631
+build_src_filter = ${rak4631.build_src_filter} +<../examples/simple_repeater/main.cpp>
+build_flags =
+  ${rak4631.build_flags} 
+  -D ADVERT_NAME="\"RAK4631 Repeater\""
+  -D ADVERT_LAT=-37.0
+  -D ADVERT_LON=145.0
+  -D ADMIN_PASSWORD="\"password\""
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+
+[env:RAK_4631_room_server]
+extends = rak4631
+build_src_filter = ${rak4631.build_src_filter} +<../examples/simple_room_server/main.cpp>
+build_flags =
+  ${rak4631.build_flags} 
+  -D ADVERT_NAME="\"Test Room\""
+  -D ADVERT_LAT=-37.0
+  -D ADVERT_LON=145.0
+  -D ADMIN_PASSWORD="\"password\""
+  -D ROOM_PASSWORD="\"hello\""
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+
+[env:RAK_4631_terminal_chat]
+extends = rak4631
+build_flags =
+  ${rak4631.build_flags} 
+  -D MAX_CONTACTS=100
+  -D MAX_GROUP_CHANNELS=1
+  -D MESH_PACKET_LOGGING=1
+  -D MESH_DEBUG=1
+build_src_filter = ${rak4631.build_src_filter} +<../examples/simple_secure_chat/main.cpp>
+lib_deps =
+  ${rak4631.lib_deps}
+  densaugeo/base64 @ ~1.4.0
+
+[env:RAK_4631_companion_radio_usb]
+extends = rak4631
+build_flags =
+  ${rak4631.build_flags} 
+  -D MAX_CONTACTS=100
+  -D MAX_GROUP_CHANNELS=1
+;  -D ENABLE_PRIVATE_KEY_IMPORT=1
+;  -D ENABLE_PRIVATE_KEY_EXPORT=1
+; NOTE: DO NOT ENABLE -->  -D MESH_PACKET_LOGGING=1
+; NOTE: DO NOT ENABLE -->  -D MESH_DEBUG=1
+build_src_filter = ${rak4631.build_src_filter} +<../examples/companion_radio/main.cpp>
+lib_deps =
+  ${rak4631.lib_deps}
+  densaugeo/base64 @ ~1.4.0
+
+[env:RAK_4631_companion_radio_ble]
+extends = rak4631
+build_flags =
+  ${rak4631.build_flags} 
+  -D MAX_CONTACTS=100
+  -D MAX_GROUP_CHANNELS=1
+  -D BLE_PIN_CODE=123456
+  -D BLE_DEBUG_LOGGING=1
+;  -D ENABLE_PRIVATE_KEY_IMPORT=1
+;  -D ENABLE_PRIVATE_KEY_EXPORT=1
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+build_src_filter = ${rak4631.build_src_filter} +<helpers/nrf52/*.cpp> +<../examples/companion_radio/main.cpp>
+lib_deps =
+  ${rak4631.lib_deps}
+  densaugeo/base64 @ ~1.4.0
+
+; ----------------- NRF52 T1000e---------------------
+[nrf52840_t1000e]
+extends = nrf52_base
+platform_packages = framework-arduinoadafruitnrf52
+build_flags = ${nrf52_base.build_flags} 
+  -I src/helpers/nrf52
+lib_ignore =
+  BluetoothOTA
+  lvgl
+  lib5b4
+lib_deps =
+  ${nrf52_base.lib_deps}
+  rweather/Crypto @ ^0.4.0
+
+[t1000-e]
+extends = nrf52840_t1000e
+board = tracker-t1000-e
+board_build.ldscript = boards/nrf52840_s140_v7.ld
+build_flags = ${nrf52840_t1000e.build_flags} 
+  -Ivariants/t1000-e
+  -DT1000_E
+  -D RADIO_CLASS=CustomLR1110
+  -D WRAPPER_CLASS=CustomLR1110Wrapper
+build_src_filter = ${nrf52840_t1000e.build_src_filter} 
+  +<helpers/*.cpp> 
+  +<helpers/nrf52/T1000eBoard.cpp>
+  +<../variants/t1000-e>
+debug_tool = jlink
+upload_protocol = nrfutil
+
+[env:t1000e_companion_radio_ble]
+extends = t1000-e
+build_flags = ${t1000-e.build_flags}
+  -D MAX_CONTACTS=100
+  -D MAX_GROUP_CHANNELS=1
+  -D BLE_PIN_CODE=123456
+  -D BLE_DEBUG_LOGGING=1
+  -D MESH_PACKET_LOGGING=1
+  -D MESH_DEBUG=1
+build_src_filter = ${t1000-e.build_src_filter}
+  +<helpers/nrf52/SerialBLEInterface.cpp>
+  +<../examples/companion_radio/*.cpp>
+lib_deps = ${t1000-e.lib_deps}
+  densaugeo/base64 @ ~1.4.0
@@ -1,802 +0,0 @@
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-<h1 id="qr-codes">QR Codes</h1>
-<p>This document provides an overview of QR Code formats that can be used for sharing MeshCore channels and contacts. The formats described below are supported by the MeshCore mobile app.</p>
-<h2 id="add-channel">Add Channel</h2>
-<p><strong>Example URL</strong>:</p>
-<pre><code>meshcore://channel/add?name=Public&amp;secret=8b3387e9c5cdea6ac9e5edbaa115cd72
-</code></pre>
-<p><strong>Parameters</strong>:</p>
-<ul>
-<li><code>name</code>: Channel name (URL-encoded)</li>
-<li><code>secret</code>: 16-byte secret represented as 32 hex characters</li>
-<li><code>region_scope</code>: Region Scope (optional, URL-encoded if provided)<ul>
-<li>Supported by MeshCore App v1.47.0+</li>
-</ul>
-</li>
-</ul>
-<h2 id="add-contact">Add Contact</h2>
-<p><strong>Example URL</strong>:</p>
-<pre><code>meshcore://contact/add?name=Example+Contact&amp;public_key=9cd8fcf22a47333b591d96a2b848b73f457b1bb1a3ea2453a885f9e5787765b1&amp;type=1
-</code></pre>
-<p><strong>Parameters</strong>:</p>
-<ul>
-<li><code>name</code>: Contact name (URL-encoded if needed)</li>
-<li><code>public_key</code>: 32-byte public key represented as 64 hex characters</li>
-<li><code>type</code>: numeric contact type<ul>
-<li><code>1</code>: Companion</li>
-<li><code>2</code>: Repeater</li>
-<li><code>3</code>: Room Server</li>
-<li><code>4</code>: Sensor</li>
-</ul>
-</li>
-</ul>
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@@ -1,55 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
-    <url>
-         <loc>https://meshcore-dev.github.io/meshcore/</loc>
-         <lastmod>2026-07-28</lastmod>
-    </url>
-    <url>
-         <loc>https://meshcore-dev.github.io/meshcore/cli_commands/</loc>
-         <lastmod>2026-07-28</lastmod>
-    </url>
-    <url>
-         <loc>https://meshcore-dev.github.io/meshcore/companion_protocol/</loc>
-         <lastmod>2026-07-28</lastmod>
-    </url>
-    <url>
-         <loc>https://meshcore-dev.github.io/meshcore/docs/</loc>
-         <lastmod>2026-07-28</lastmod>
-    </url>
-    <url>
-         <loc>https://meshcore-dev.github.io/meshcore/faq/</loc>
-         <lastmod>2026-07-28</lastmod>
-    </url>
-    <url>
-         <loc>https://meshcore-dev.github.io/meshcore/kiss_modem_protocol/</loc>
-         <lastmod>2026-07-28</lastmod>
-    </url>
-    <url>
-         <loc>https://meshcore-dev.github.io/meshcore/nrf52_power_management/</loc>
-         <lastmod>2026-07-28</lastmod>
-    </url>
-    <url>
-         <loc>https://meshcore-dev.github.io/meshcore/number_allocations/</loc>
-         <lastmod>2026-07-28</lastmod>
-    </url>
-    <url>
-         <loc>https://meshcore-dev.github.io/meshcore/packet_format/</loc>
-         <lastmod>2026-07-28</lastmod>
-    </url>
-    <url>
-         <loc>https://meshcore-dev.github.io/meshcore/payloads/</loc>
-         <lastmod>2026-07-28</lastmod>
-    </url>
-    <url>
-         <loc>https://meshcore-dev.github.io/meshcore/qr_codes/</loc>
-         <lastmod>2026-07-28</lastmod>
-    </url>
-    <url>
-         <loc>https://meshcore-dev.github.io/meshcore/stats_binary_frames/</loc>
-         <lastmod>2026-07-28</lastmod>
-    </url>
-    <url>
-         <loc>https://meshcore-dev.github.io/meshcore/terminal_chat_cli/</loc>
-         <lastmod>2026-07-28</lastmod>
-    </url>
-</urlset>
@@ -0,0 +1,249 @@
+#include "Dispatcher.h"
+
+#if MESH_PACKET_LOGGING
+  #include <Arduino.h>
+#endif
+
+#include <math.h>
+
+namespace mesh {
+
+#define MAX_RX_DELAY_MILLIS   32000  // 32 seconds
+
+void Dispatcher::begin() {
+  n_sent_flood = n_sent_direct = 0;
+  n_recv_flood = n_recv_direct = 0;
+  n_full_events = 0;
+
+  _radio->begin();
+}
+
+float Dispatcher::getAirtimeBudgetFactor() const {
+  return 2.0;   // default, 33.3%  (1/3rd)
+}
+
+int Dispatcher::calcRxDelay(float score, uint32_t air_time) const {
+  return (int) ((pow(10, 0.85f - score) - 1.0) * air_time);
+}
+
+uint32_t Dispatcher::getCADFailRetryDelay() const {
+  return 200;
+}
+
+void Dispatcher::loop() {
+  if (outbound) {  // waiting for outbound send to be completed
+    if (_radio->isSendComplete()) {
+      long t = _ms->getMillis() - outbound_start;
+      total_air_time += t;  // keep track of how much air time we are using
+      //Serial.print("  airtime="); Serial.println(t);
+
+      // will need radio silence up to next_tx_time
+      next_tx_time = futureMillis(t * getAirtimeBudgetFactor());
+
+      _radio->onSendFinished();
+      logTx(outbound, 2 + outbound->path_len + outbound->payload_len);
+      if (outbound->isRouteFlood()) {
+        n_sent_flood++;
+      } else {
+        n_sent_direct++;
+      }
+      releasePacket(outbound);  // return to pool
+      outbound = NULL;
+    } else if (millisHasNowPassed(outbound_expiry)) {
+      MESH_DEBUG_PRINTLN("%s Dispatcher::loop(): WARNING: outbound packed send timed out!", getLogDateTime());
+
+      _radio->onSendFinished();
+      logTxFail(outbound, 2 + outbound->path_len + outbound->payload_len);
+
+      releasePacket(outbound);  // return to pool
+      outbound = NULL;
+    } else {
+      return;  // can't do any more radio activity until send is complete or timed out
+    }
+  }
+
+  // check inbound (delayed) queue
+  {
+    Packet* pkt = _mgr->getNextInbound(_ms->getMillis());
+    if (pkt) {
+      processRecvPacket(pkt);
+    }
+  }
+  checkRecv();
+  checkSend();
+}
+
+void Dispatcher::checkRecv() {
+  Packet* pkt;
+  float score;
+  uint32_t air_time;
+  {
+    uint8_t raw[MAX_TRANS_UNIT];
+    int len = _radio->recvRaw(raw, MAX_TRANS_UNIT);
+    if (len > 0) {
+      pkt = _mgr->allocNew();
+      if (pkt == NULL) {
+        MESH_DEBUG_PRINTLN("%s Dispatcher::checkRecv(): WARNING: received data, no unused packets available!", getLogDateTime());
+      } else {
+        int i = 0;
+#ifdef NODE_ID
+        uint8_t sender_id = raw[i++];
+        if (sender_id == NODE_ID - 1 || sender_id == NODE_ID + 1) {  // simulate that NODE_ID can only hear NODE_ID-1 or NODE_ID+1, eg. 3 can't hear 1
+        } else {
+          _mgr->free(pkt);  // put back into pool
+          return;
+        }
+#endif
+
+        pkt->header = raw[i++];
+        pkt->path_len = raw[i++];
+
+        if (pkt->path_len > MAX_PATH_SIZE || i + pkt->path_len > len) {
+          MESH_DEBUG_PRINTLN("%s Dispatcher::checkRecv(): partial or corrupt packet received, len=%d", getLogDateTime(), len);
+          _mgr->free(pkt);  // put back into pool
+          pkt = NULL;
+        } else {
+          memcpy(pkt->path, &raw[i], pkt->path_len); i += pkt->path_len;
+
+          pkt->payload_len = len - i;  // payload is remainder
+          memcpy(pkt->payload, &raw[i], pkt->payload_len);
+
+          score = _radio->packetScore(_radio->getLastSNR(), len);
+          air_time = _radio->getEstAirtimeFor(len);
+        }
+      }
+    } else {
+      pkt = NULL;
+    }
+  }
+  if (pkt) {
+    #if MESH_PACKET_LOGGING
+    Serial.print(getLogDateTime());
+    Serial.printf(": RX, len=%d (type=%d, route=%s, payload_len=%d) SNR=%d RSSI=%d score=%d", 
+            2 + pkt->path_len + pkt->payload_len, pkt->getPayloadType(), pkt->isRouteDirect() ? "D" : "F", pkt->payload_len,
+            (int)_radio->getLastSNR(), (int)_radio->getLastRSSI(), (int)(score*1000));
+    if (pkt->getPayloadType() == PAYLOAD_TYPE_PATH || pkt->getPayloadType() == PAYLOAD_TYPE_REQ
+        || pkt->getPayloadType() == PAYLOAD_TYPE_RESPONSE || pkt->getPayloadType() == PAYLOAD_TYPE_TXT_MSG) {
+      Serial.printf(" [%02X -> %02X]\n", (uint32_t)pkt->payload[1], (uint32_t)pkt->payload[0]);
+    } else {
+      Serial.printf("\n");
+    }
+    #endif
+    logRx(pkt, 2 + pkt->path_len + pkt->payload_len, score);   // hook for custom logging
+
+    if (pkt->isRouteFlood()) {
+      n_recv_flood++;
+
+      int _delay = calcRxDelay(score, air_time);
+      if (_delay < 50) {
+        MESH_DEBUG_PRINTLN("%s Dispatcher::checkRecv(), score delay below threshold (%d)", getLogDateTime(), _delay);
+        processRecvPacket(pkt);   // is below the score delay threshold, so process immediately
+      } else {
+        MESH_DEBUG_PRINTLN("%s Dispatcher::checkRecv(), score delay is: %d millis", getLogDateTime(), _delay);
+        if (_delay > MAX_RX_DELAY_MILLIS) {
+          _delay = MAX_RX_DELAY_MILLIS;
+        }
+        _mgr->queueInbound(pkt, futureMillis(_delay)); // add to delayed inbound queue
+      }
+    } else {
+      n_recv_direct++;
+      processRecvPacket(pkt);
+    }
+  }
+}
+
+void Dispatcher::processRecvPacket(Packet* pkt) {
+  DispatcherAction action = onRecvPacket(pkt);
+  if (action == ACTION_RELEASE) {
+    _mgr->free(pkt);
+  } else if (action == ACTION_MANUAL_HOLD) {
+    // sub-class is wanting to manually hold Packet instance, and call releasePacket() at appropriate time
+  } else {   // ACTION_RETRANSMIT*
+    uint8_t priority = (action >> 24) - 1;
+    uint32_t _delay = action & 0xFFFFFF;
+
+    _mgr->queueOutbound(pkt, priority, futureMillis(_delay));
+  }
+}
+
+void Dispatcher::checkSend() {
+  if (_mgr->getOutboundCount() == 0) return;  // nothing waiting to send
+  if (!millisHasNowPassed(next_tx_time)) return;   // still in 'radio silence' phase (from airtime budget setting)
+  if (_radio->isReceiving()) {   // LBT - check if radio is currently mid-receive, or if channel activity
+    next_tx_time = futureMillis(getCADFailRetryDelay());
+    return; 
+  }
+
+  outbound = _mgr->getNextOutbound(_ms->getMillis());
+  if (outbound) {
+    int len = 0;
+    uint8_t raw[MAX_TRANS_UNIT];
+
+#ifdef NODE_ID
+    raw[len++] = NODE_ID;
+#endif
+    raw[len++] = outbound->header;
+    raw[len++] = outbound->path_len;
+    memcpy(&raw[len], outbound->path, outbound->path_len); len += outbound->path_len;
+
+    if (len + outbound->payload_len > MAX_TRANS_UNIT) {
+      MESH_DEBUG_PRINTLN("%s Dispatcher::checkSend(): FATAL: Invalid packet queued... too long, len=%d", getLogDateTime(), len + outbound->payload_len);
+      _mgr->free(outbound);
+      outbound = NULL;
+    } else {
+      memcpy(&raw[len], outbound->payload, outbound->payload_len); len += outbound->payload_len;
+
+      uint32_t max_airtime = _radio->getEstAirtimeFor(len)*3/2;
+      outbound_start = _ms->getMillis();
+      _radio->startSendRaw(raw, len);
+      outbound_expiry = futureMillis(max_airtime);
+
+    #if MESH_PACKET_LOGGING
+      Serial.print(getLogDateTime());
+      Serial.printf(": TX, len=%d (type=%d, route=%s, payload_len=%d)", 
+            len, outbound->getPayloadType(), outbound->isRouteDirect() ? "D" : "F", outbound->payload_len);
+      if (outbound->getPayloadType() == PAYLOAD_TYPE_PATH || outbound->getPayloadType() == PAYLOAD_TYPE_REQ
+        || outbound->getPayloadType() == PAYLOAD_TYPE_RESPONSE || outbound->getPayloadType() == PAYLOAD_TYPE_TXT_MSG) {
+        Serial.printf(" [%02X -> %02X]\n", (uint32_t)outbound->payload[1], (uint32_t)outbound->payload[0]);
+      } else {
+        Serial.printf("\n");
+      }
+    #endif
+    }
+  }
+}
+
+Packet* Dispatcher::obtainNewPacket() {
+  auto pkt = _mgr->allocNew();  // TODO: zero out all fields
+  if (pkt == NULL) {
+    n_full_events++;
+  } else {
+    pkt->payload_len = pkt->path_len = 0;
+  }
+  return pkt;
+}
+
+void Dispatcher::releasePacket(Packet* packet) {
+  _mgr->free(packet);
+}
+
+void Dispatcher::sendPacket(Packet* packet, uint8_t priority, uint32_t delay_millis) {
+  if (packet->path_len > MAX_PATH_SIZE || packet->payload_len > MAX_PACKET_PAYLOAD) {
+    MESH_DEBUG_PRINTLN("%s Dispatcher::sendPacket(): ERROR: invalid packet... path_len=%d, payload_len=%d", getLogDateTime(), (uint32_t) packet->path_len, (uint32_t) packet->payload_len);
+    _mgr->free(packet);
+  } else {
+    _mgr->queueOutbound(packet, priority, futureMillis(delay_millis));
+  }
+}
+
+// Utility function -- handles the case where millis() wraps around back to zero
+//   2's complement arithmetic will handle any unsigned subtraction up to HALF the word size (32-bits in this case)
+bool Dispatcher::millisHasNowPassed(unsigned long timestamp) const {
+  return (long)(_ms->getMillis() - timestamp) > 0;
+}
+
+unsigned long Dispatcher::futureMillis(int millis_from_now) const {
+  return _ms->getMillis() + millis_from_now;
+}
+
+}
@@ -0,0 +1,153 @@
+#pragma once
+
+#include <MeshCore.h>
+#include <Identity.h>
+#include <Packet.h>
+#include <Utils.h>
+#include <string.h>
+
+namespace mesh {
+
+/**
+ * \brief  Abstraction of local/volatile clock with Millisecond granularity.
+*/
+class MillisecondClock {
+public:
+  virtual unsigned long getMillis() = 0;
+};
+
+/**
+ * \brief  Abstraction of this device's packet radio.
+*/
+class Radio {
+public:
+  virtual void begin() { }
+
+  /**
+   * \brief  polls for incoming raw packet.
+   * \param  bytes  destination to store incoming raw packet.
+   * \param  sz   maximum packet size allowed.
+   * \returns 0 if no incoming data, otherwise length of complete packet received.
+  */
+  virtual int recvRaw(uint8_t* bytes, int sz) = 0;
+
+  /**
+   * \returns  estimated transmit air-time needed for packet of 'len_bytes', in milliseconds.
+  */
+  virtual uint32_t getEstAirtimeFor(int len_bytes) = 0;
+
+  virtual float packetScore(float snr, int packet_len) = 0;
+
+  /**
+   * \brief  starts the raw packet send. (no wait)
+   * \param  bytes   the raw packet data
+   * \param  len  the length in bytes
+  */
+  virtual void startSendRaw(const uint8_t* bytes, int len) = 0;
+
+  /**
+   * \returns true if the previous 'startSendRaw()' completed successfully.
+  */
+  virtual bool isSendComplete() = 0;
+
+  /**
+   * \brief  a hook for doing any necessary clean up after transmit.
+  */
+  virtual void onSendFinished() = 0;
+
+  /**
+   * \returns  true if the radio is currently mid-receive of a packet.
+  */
+  virtual bool isReceiving() { return false; }
+
+  virtual float getLastRSSI() const { return 0; }
+  virtual float getLastSNR() const { return 0; }
+};
+
+/**
+ * \brief  An abstraction for managing instances of Packets (eg. in a static pool),
+ *        and for managing the outbound packet queue.
+*/
+class PacketManager {
+public:
+  virtual Packet* allocNew() = 0;
+  virtual void free(Packet* packet) = 0;
+
+  virtual void queueOutbound(Packet* packet, uint8_t priority, uint32_t scheduled_for) = 0;
+  virtual Packet* getNextOutbound(uint32_t now) = 0;    // by priority
+  virtual int getOutboundCount() const = 0;
+  virtual int getFreeCount() const = 0;
+  virtual Packet* getOutboundByIdx(int i) = 0;
+  virtual Packet* removeOutboundByIdx(int i) = 0;
+  virtual void queueInbound(Packet* packet, uint32_t scheduled_for) = 0;
+  virtual Packet* getNextInbound(uint32_t now) = 0;
+};
+
+typedef uint32_t  DispatcherAction;
+
+#define ACTION_RELEASE           (0)
+#define ACTION_MANUAL_HOLD       (1)
+#define ACTION_RETRANSMIT(pri)   (((uint32_t)1 + (pri))<<24)
+#define ACTION_RETRANSMIT_DELAYED(pri, _delay)  ((((uint32_t)1 + (pri))<<24) | (_delay))
+
+/**
+ * \brief  The low-level task that manages detecting incoming Packets, and the queueing
+ *      and scheduling of outbound Packets.
+*/
+class Dispatcher {
+  Packet* outbound;  // current outbound packet
+  unsigned long outbound_expiry, outbound_start, total_air_time;
+  unsigned long next_tx_time;
+  uint32_t n_sent_flood, n_sent_direct;
+  uint32_t n_recv_flood, n_recv_direct;
+  uint32_t n_full_events;
+
+  void processRecvPacket(Packet* pkt);
+
+protected:
+  PacketManager* _mgr;
+  Radio* _radio;
+  MillisecondClock* _ms;
+
+  Dispatcher(Radio& radio, MillisecondClock& ms, PacketManager& mgr)
+    : _radio(&radio), _ms(&ms), _mgr(&mgr)
+  {
+    outbound = NULL; total_air_time = 0; next_tx_time = 0;
+  }
+
+  virtual DispatcherAction onRecvPacket(Packet* pkt) = 0;
+
+  virtual void logRx(Packet* packet, int len, float score) { }   // hooks for custom logging
+  virtual void logTx(Packet* packet, int len) { }
+  virtual void logTxFail(Packet* packet, int len) { }
+  virtual const char* getLogDateTime() { return ""; }
+
+  virtual float getAirtimeBudgetFactor() const;
+  virtual int calcRxDelay(float score, uint32_t air_time) const;
+  virtual uint32_t getCADFailRetryDelay() const;
+
+public:
+  void begin();
+  void loop();
+
+  Packet* obtainNewPacket();
+  void releasePacket(Packet* packet);
+  void sendPacket(Packet* packet, uint8_t priority, uint32_t delay_millis=0);
+
+  unsigned long getTotalAirTime() const { return total_air_time; }  // in milliseconds
+  uint32_t getNumSentFlood() const { return n_sent_flood; }
+  uint32_t getNumSentDirect() const { return n_sent_direct; }
+  uint32_t getNumRecvFlood() const { return n_recv_flood; }
+  uint32_t getNumRecvDirect() const { return n_recv_direct; }
+  uint32_t getNumFullEvents() const { return n_full_events; }
+
+  // helper methods
+  bool millisHasNowPassed(unsigned long timestamp) const;
+  unsigned long futureMillis(int millis_from_now) const;
+
+private:
+  void checkRecv();
+  void checkSend();
+};
+
+}
@@ -0,0 +1,93 @@
+#include "Identity.h"
+#include <string.h>
+#define ED25519_NO_SEED  1
+#include <ed_25519.h>
+
+namespace mesh {
+
+Identity::Identity() {
+  memset(pub_key, 0, sizeof(pub_key));
+}
+
+Identity::Identity(const char* pub_hex) {
+  Utils::fromHex(pub_key, PUB_KEY_SIZE, pub_hex);
+}
+
+bool Identity::verify(const uint8_t* sig, const uint8_t* message, int msg_len) const {
+  return ed25519_verify(sig, message, msg_len, pub_key);
+}
+
+bool Identity::readFrom(Stream& s) {
+  return (s.readBytes(pub_key, PUB_KEY_SIZE) == PUB_KEY_SIZE);
+}
+
+bool Identity::writeTo(Stream& s) const {
+  return (s.write(pub_key, PUB_KEY_SIZE) == PUB_KEY_SIZE);
+}
+
+void Identity::printTo(Stream& s) const {
+  Utils::printHex(s, pub_key, PUB_KEY_SIZE);
+}
+
+LocalIdentity::LocalIdentity() {
+  memset(prv_key, 0, sizeof(prv_key));
+}
+LocalIdentity::LocalIdentity(const char* prv_hex, const char* pub_hex) : Identity(pub_hex) {
+  Utils::fromHex(prv_key, PRV_KEY_SIZE, prv_hex);
+}
+
+LocalIdentity::LocalIdentity(RNG* rng) {
+  uint8_t seed[SEED_SIZE];
+  rng->random(seed, SEED_SIZE);
+  ed25519_create_keypair(pub_key, prv_key, seed);
+}
+
+bool LocalIdentity::readFrom(Stream& s) {
+  bool success = (s.readBytes(pub_key, PUB_KEY_SIZE) == PUB_KEY_SIZE);
+  success = success && (s.readBytes(prv_key, PRV_KEY_SIZE) == PRV_KEY_SIZE);
+  return success;
+}
+
+bool LocalIdentity::writeTo(Stream& s) const {
+  bool success = (s.write(pub_key, PUB_KEY_SIZE) == PUB_KEY_SIZE);
+  success = success && (s.write(prv_key, PRV_KEY_SIZE) == PRV_KEY_SIZE);
+  return success;
+}
+
+void LocalIdentity::printTo(Stream& s) const {
+  s.print("pub_key: "); Utils::printHex(s, pub_key, PUB_KEY_SIZE); s.println();
+  s.print("prv_key: "); Utils::printHex(s, prv_key, PRV_KEY_SIZE); s.println();
+}
+
+size_t LocalIdentity::writeTo(uint8_t* dest, size_t max_len) {
+  if (max_len < PRV_KEY_SIZE) return 0;  // not big enough
+
+  if (max_len < PRV_KEY_SIZE + PUB_KEY_SIZE) {  // only room for prv_key
+    memcpy(dest, prv_key, PRV_KEY_SIZE);
+    return PRV_KEY_SIZE;
+  }
+  memcpy(dest, prv_key, PRV_KEY_SIZE);  // otherwise can fit prv + pub keys
+  memcpy(&dest[PRV_KEY_SIZE], pub_key, PUB_KEY_SIZE);
+  return PRV_KEY_SIZE + PUB_KEY_SIZE;
+}
+
+void LocalIdentity::readFrom(const uint8_t* src, size_t len) {
+  if (len == PRV_KEY_SIZE + PUB_KEY_SIZE) {  // has prv + pub keys
+    memcpy(prv_key, src, PRV_KEY_SIZE);
+    memcpy(pub_key, &src[PRV_KEY_SIZE], PUB_KEY_SIZE);
+  } else if (len == PRV_KEY_SIZE) {
+    memcpy(prv_key, src, PRV_KEY_SIZE);
+    // now need to re-calculate the pub_key
+    ed25519_derive_pub(pub_key, prv_key);
+  }
+}
+
+void LocalIdentity::sign(uint8_t* sig, const uint8_t* message, int msg_len) const {
+  ed25519_sign(sig, message, msg_len, pub_key, prv_key);
+}
+
+void LocalIdentity::calcSharedSecret(uint8_t* secret, const uint8_t* other_pub_key) {
+  ed25519_key_exchange(secret, other_pub_key, prv_key);
+}
+
+}
@@ -0,0 +1,84 @@
+#pragma once
+
+#include <Utils.h>
+#include <Stream.h>
+
+namespace mesh {
+
+/**
+ * \brief  An identity in the mesh, with given Ed25519 public key, ie. a party whose signatures can be VERIFIED.
+*/
+class Identity {
+public:
+  uint8_t pub_key[PUB_KEY_SIZE];
+
+  Identity();
+  Identity(const char* pub_hex);
+  Identity(const uint8_t* _pub) { memcpy(pub_key, _pub, PUB_KEY_SIZE); }
+
+  int copyHashTo(uint8_t* dest) const { 
+    memcpy(dest, pub_key, PATH_HASH_SIZE);    // hash is just prefix of pub_key
+    return PATH_HASH_SIZE;
+  }
+  bool isHashMatch(const uint8_t* hash) const {
+    return memcmp(hash, pub_key, PATH_HASH_SIZE) == 0;
+  }
+
+  /**
+   * \brief  Performs Ed25519 signature verification.
+   * \param sig IN - must be SIGNATURE_SIZE buffer.
+   * \param message IN - the original message which was signed.
+   * \param msg_len IN - the length in bytes of message.
+   * \returns true, if signature is valid.
+  */
+  bool verify(const uint8_t* sig, const uint8_t* message, int msg_len) const;
+
+  bool matches(const Identity& other) const { return memcmp(pub_key, other.pub_key, PUB_KEY_SIZE) == 0; }
+  bool matches(const uint8_t* other_pubkey) const { return memcmp(pub_key, other_pubkey, PUB_KEY_SIZE) == 0; }
+
+  bool readFrom(Stream& s);
+  bool writeTo(Stream& s) const;
+  void printTo(Stream& s) const;
+};
+
+/**
+ * \brief  An Identity generated on THIS device, ie. with public/private Ed25519 key pair being on this device.
+*/
+class LocalIdentity : public Identity {
+  uint8_t prv_key[PRV_KEY_SIZE];
+public:
+  LocalIdentity();
+  LocalIdentity(const char* prv_hex, const char* pub_hex);
+  LocalIdentity(RNG* rng);   // create new random
+
+  /**
+   * \brief  Ed25519 digital signature.
+   * \param sig OUT - must be SIGNATURE_SIZE buffer.
+   * \param message IN - the raw message bytes to sign.
+   * \param msg_len IN - the length in bytes of message.
+  */
+  void sign(uint8_t* sig, const uint8_t* message, int msg_len) const;
+
+  /**
+   * \brief  the ECDH key exhange, with Ed25519 public key transposed to Ex25519.
+   * \param  secret OUT - the 'shared secret' (must be PUB_KEY_SIZE bytes)
+   * \param  other IN - the second party in the exchange.
+  */
+  void calcSharedSecret(uint8_t* secret, const Identity& other) { calcSharedSecret(secret, other.pub_key); }
+
+  /**
+   * \brief  the ECDH key exhange, with Ed25519 public key transposed to Ex25519.
+   * \param  secret OUT - the 'shared secret' (must be PUB_KEY_SIZE bytes)
+   * \param  other_pub_key IN - the public key of second party in the exchange (must be PUB_KEY_SIZE bytes)
+  */
+  void calcSharedSecret(uint8_t* secret, const uint8_t* other_pub_key);
+
+  bool readFrom(Stream& s);
+  bool writeTo(Stream& s) const;
+  void printTo(Stream& s) const;
+  size_t writeTo(uint8_t* dest, size_t max_len);
+  void readFrom(const uint8_t* src, size_t len);
+};
+
+}
+
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Scott Powell	189ed79d46	* new Dispatcher::getCADFailRetryDelay()	2025-02-27 04:05:50 +11:00
Scott Powell	be2af61dfe	* ESP32: SerialBLEInterface, delay(500) not needed	2025-02-26 21:08:54 +11:00
Scott Powell	54af8ad2a9	* esp32 SerialBLEInterface: 1 second delay now applied before testing whether to re-start advertising	2025-02-26 20:53:31 +11:00
ripplebizandGitHub	c01c2ed3ac	Merge pull request #49 from liamcottle/main Fix double pairing prompt for ESP32	2025-02-26 18:35:45 +11:00
liamcottle	abb2dea321	don't set encryption level on device as it's set on each characteristic	2025-02-26 20:24:14 +13:00
Scott Powell	64ccc4e289	* build fixes for RAK targets	2025-02-26 18:19:38 +11:00
ripplebizandGitHub	85e867e923	Merge pull request #47 from fdlamotte/t1000e_work T1000e in tree ;)	2025-02-26 18:04:22 +11:00
ripplebizandGitHub	c4c5d43bc4	Merge pull request #48 from liamcottle/main Fix BLE Pin for ESP32 and nRF52	2025-02-26 17:41:11 +11:00
liamcottle	dbc9659e9a	enforce pin being used for ble pairing on nrf52	2025-02-26 17:27:58 +13:00
liamcottle	83c827ce85	enforce pin being used for ble pairing on esp32	2025-02-26 17:04:44 +13:00
Florent de Lamotte	7290bf0c7d	t1000e companion radio example builds in tree !	2025-02-25 16:46:06 +01:00
Florent de Lamotte	cc1a944988	upd t1000e board support	2025-02-25 14:02:19 +01:00
Scott Powell	a6a6bef371	* new helper: AutoDiscoverRTCClock, which detects: DS3231 (on i2c addr 0x68), or RV3028 (on i2c addr 0x52) * repeater and room server: ver bump (v5), now use AutoDiscoverRTCClock * various Board::begin() now should do Wire.begin(), with custom pin mappings if needed * examples removed: ping client/server, and test_admin	2025-02-25 19:00:07 +11:00
Scott Powell	c4cc3dd1ec	* repeater and room server: login password now using strcmp(), new 'set direct.txdelay ..' config	2025-02-24 20:52:13 +11:00
Scott Powell	d81bbe56a0	* repeater: login now evicts oldest client table entry if full. New RESP_SERVER_LOGIN_OK login response format (with permissions byte) * companion radio: PUSH_CODE_LOGIN_SUCCESS now returns 'permissions' byte (0 for legacy "OK" response)	2025-02-24 16:01:14 +11:00
Scott Powell	d880a48b85	* companion radio: new CMD_SEND_LOGIN, CMD_SEND_STATUS_REQ	2025-02-24 14:05:17 +11:00
Scott Powell	274bd6ddbf	* new PAYLOAD_TYPE_RAW_CUSTOM	2025-02-23 15:35:33 +11:00
Scott Powell	fc4e5ed54c	* new StrHelper::strzcpy()	2025-02-22 20:10:31 +11:00
Scott Powell	37f4ceff85	* strncpy() refactor/fix	2025-02-22 19:41:24 +11:00
Scott Powell	4d8478de98	* added S3 WIO target for BLE companion radio	2025-02-22 10:44:45 +11:00
Scott Powell	f434123e99	* tidy ups of PRIVATE_KEY_IMPORT/_EXPORT stuff	2025-02-21 13:51:26 +11:00
ripplebizandGitHub	0bb202327a	Merge pull request #32 from liamcottle/main add new commands to companion firmware to import and export identity	2025-02-21 13:29:39 +11:00
liamcottle	9faba8f184	add build flags to enable and disable private key import and export	2025-02-21 14:54:59 +13:00
liamcottle	6af9774976	add new commands to companion firmware to import and export identity private key	2025-02-21 12:34:15 +13:00
Scott Powell	f8d03804e1	* room server: minor timing fix	2025-02-20 22:59:47 +11:00
Scott Powell	e65c3e3240	* MESH_DEBUG_PRINTLN fixes	2025-02-20 18:04:35 +11:00
Scott Powell	fc02d8fbcb	* Mesh/Dispatcher: MESH_DEBUG_ and MESH_PACKET_LOGGING now output date-time. (new getLogDateTime() virtual) * MESH_PACKET_LOGGING now parity with dynamic/file logging (src/dest hashes)	2025-02-20 12:41:47 +11:00
Scott Powell	cf63ec9493	* companion radio: new CMD_DEVICE_QUERY -> RESP_CODE_DEVICE_INFO, airtime_factor added to CMD_SET_TUNING_PARAMS, CMD_REBOOT change	2025-02-19 18:59:43 +11:00
ripplebizandGitHub	72d44a17d4	Merge pull request #23 from fdlamotte/t1000e_code T1000e code	2025-02-19 17:49:36 +11:00
Scott Powell	ba181da94a	* added RTCClock::getCurrentTimeUnique(), for when timestamps need to be unique (if temp rapid-fire)	2025-02-19 17:24:25 +11:00
Scott Powell	a115626afd	* repeater: added src/dest hashes to logging	2025-02-18 23:49:25 +11:00
Scott Powell	3b5b7a1642	* SimpleMeshTables: ACKs now handled separately * Dispatcher: logging methods now with 'len' param	2025-02-18 22:59:03 +11:00
Scott Powell	5811cf9f02	* repeater: Get Stats new fields added: n_direct_dups, n_flood_dups	2025-02-18 17:47:00 +11:00
Scott Powell	9d9145a1c2	* repeater: new CLI commands: "log start", "log stop", "log erase", and "log"	2025-02-18 13:20:48 +11:00
Scott Powell	ef95462345	* repeater, room server and terminal chat: default to rxdelay off	2025-02-17 10:56:41 +11:00
Scott Powell	769711ff81	* companion radio: "set af .." now applied, rxdelay now OFF by default. (can set though with new CMD_SET_TUNING_PARAMS)	2025-02-17 10:43:48 +11:00
ripplebizandGitHub	b934a1286e	Merge pull request #27 from liamcottle/main added CMD_GET_BATTERY_VOLTAGE to companion radio	2025-02-16 14:56:54 +11:00
liamcottle	a96ecd8b5b	added CMD_GET_BATTERY_VOLTAGE to companion radio	2025-02-16 16:51:10 +13:00
ripplebizandGitHub	d6c218c928	Merge pull request #26 from liamcottle/main added CMD_REBOOT to companion radio	2025-02-16 13:50:34 +11:00
liamcottle	e8390ebc7b	added CMD_REBOOT to companion radio	2025-02-16 15:24:46 +13:00
Scott Powell	a2fa4caa3f	* companion radio: new CMD_EXPORT_CONTACT, CMD_IMPORT_CONTACT	2025-02-15 15:57:02 +11:00
Scott Powell	65580c76d0	* companion radio: new CMD_SHARE_CONTACT * room server: push notify loop interval changed to 2 secs	2025-02-15 13:23:19 +11:00
Florent	e16dad778c	helper files for t1000e and LR1110	2025-02-14 09:54:06 +01:00
Florent	b4ee9ecfb9	add T1000e conditionals to examples	2025-02-14 07:17:46 +01:00
Scott Powell	67c7fc070e	* companion radio: BLE variants now set device name to "MeshCore-{advert-name}"	2025-02-14 10:46:40 +11:00
Scott Powell	a922d0711d	* ver bumps * companion radio, USB: onSendTimeout() bug fix	2025-02-14 09:35:15 +11:00
Scott Powell	b8d467fbab	* BaseChatMesh: sendLogin(), onContactResponse() * companion radio: contacts file, new 'sync_since' field	2025-02-14 07:52:43 +11:00
Scott Powell	cd9b60495d	* nrf52 BLE, increased MTU to 250	2025-02-13 20:22:56 +11:00
ripplebizandGitHub	7af8f4dfa3	Merge pull request #20 from fdlamotte/nrf52_serial_ble nrf52 ble uart should work with this ;)	2025-02-13 19:47:37 +11:00
Scott Powell	0eaa11c56f	* BaseChatMesh::sendGroupMessage() added * companion radio, RESP_CODE_CHANNEL_MSG_RECV, CMD_SEND_CHANNEL_TXT_MSG	2025-02-13 10:18:48 +11:00
Florent	51a6cb8982	nrf52 ble uart should work	2025-02-12 17:44:06 +01:00
Scott Powell	824f8c1349	* companion radio for RAK (USB) now fixed. (thanks to Bernd Giesecke) * experimental NRF52 impl of SerialBLEInterface, and experimental RAK BLE companion radio target	2025-02-12 18:40:00 +11:00
Scott Powell	55531993bd	* companion radio: _SELF_INFO frames now include current adv_lat, and adv_lon	2025-02-11 16:02:35 +11:00
Scott Powell	9013d99265	* new target/envs: Heltec_v2_repeater, Heltec_v2_companion_radio_usb	2025-02-11 15:50:10 +11:00
Scott Powell	1bab9c861c	* new target/env: Heltec_v2_terminal_chat	2025-02-11 12:36:26 +11:00
Scott Powell	eb7fec6f1d	* companion radio: new command frames: CMD_SET_ADVERT_LATLON, CMD_REMOVE_CONTACT	2025-02-11 12:02:27 +11:00
Scott Powell	5d4a5dce36	Merge branch 'main' into rx_delay # Conflicts: # examples/simple_repeater/main.cpp # examples/simple_room_server/main.cpp	2025-02-10 20:13:09 +11:00
Scott Powell	42f2c1ece5	* new "set guest.password .." CLI command	2025-02-10 16:36:14 +11:00
Scott Powell	b85e43e0ae	Merge branch 'main' into rx_delay	2025-02-10 11:08:42 +11:00
ripplebizandGitHub	8ab1d495e2	Merge pull request #17 from Garrisonsan/patch-1 Update README.md regarding building for RAK devices	2025-02-10 11:06:23 +11:00
GarrisonsanandGitHub	0ab6aadf7c	Update README.md Added small section under RAK compatibility for info on how to convert hex to uf2, with link to Microsoft GitHub uf2conv python script. Cleaned up how links display in that section.	2025-02-09 16:24:04 -06:00
Scott Powell	082be00ade	Merge branch 'main' into rx_delay # Conflicts: # examples/companion_radio/main.cpp # examples/simple_secure_chat/main.cpp	2025-02-09 13:06:01 +11:00
Scott Powell	5e599f143c	* companion radio: removed need for reboot after setting radio params or tx power	2025-02-09 09:58:56 +11:00
Scott Powell	53a55f3a13	* TIMEOUT estimate adjusted * companion radio: new CMD_RESET_PATH	2025-02-08 20:57:35 +11:00
Scott Powell	cd7a8d0411	* repeater: min/max advert.interval changes	2025-02-08 19:57:10 +11:00
Scott Powell	4f3bd4b57c	Merge branch 'main' into rx_delay # Conflicts: # examples/simple_repeater/main.cpp # examples/simple_room_server/main.cpp	2025-02-08 12:04:17 +11:00
Scott Powell	5fb83c9bf7	* repeater and room server: new CLI command: "set advert.interval {mins}"	2025-02-08 11:44:09 +11:00
Scott Powell	50421ad405	Merge branch 'main' into rx_delay	2025-02-06 22:57:07 +11:00
Scott Powell	5395214ef2	* companion radio: new RESP_CODE_NO_MORE_MESSAGES response	2025-02-06 22:39:33 +11:00
Scott Powell	5824c9a6c0	* bug fix for rxdelay 0	2025-02-06 11:16:17 +11:00
Scott Powell	55f14d968f	Merge branch 'main' into rx_delay	2025-02-06 10:54:52 +11:00
Scott Powell	cc0ba10cf1	* RAK battery ADC multiplier tweak	2025-02-06 08:44:06 +11:00
Scott Powell	8b69f09ddf	* companion radio: CMD_SET_RADIO_PARAMS fix	2025-02-05 22:04:25 +11:00
Scott Powell	b428ecf31f	* new CLI command: "set txdelay ..."	2025-02-05 12:36:32 +11:00
Scott Powell	ab11421c92	Merge branch 'main' into rx_delay	2025-02-05 12:09:27 +11:00
Scott Powell	4e8d6de7d7	* companion radio: CMD_GET_DEVICE_TIME now responds with RESP_CODE_CURR_TIME(9) instead of RESP_CODE_OK	2025-02-05 11:13:39 +11:00
Scott Powell	f4229bb185	* companion radio bug fix	2025-02-05 10:42:40 +11:00
Scott Powell	8c9144f785	* added companion radio targets for T3S3 board	2025-02-04 22:09:46 +11:00
Scott Powell	61b09e9445	Merge branch 'main' into rx_delay # Conflicts: # examples/simple_repeater/main.cpp # examples/simple_room_server/main.cpp	2025-02-04 20:53:27 +11:00
Scott Powell	6cef056488	* companion radio: offline messages queue	2025-02-04 19:40:30 +11:00
Scott Powell	aaeccd121c	* repeater and room server, new "set repeat {on\|off}" CLI command	2025-02-04 18:27:13 +11:00
Scott Powell	4b8d704455	Merge branch 'main' into rx_delay	2025-02-04 16:03:32 +11:00
Scott Powell	51ab76ecc4	* Room server: added "start ota" CLI command	2025-02-04 16:03:17 +11:00
Scott Powell	cc3cf18573	* new "set rxdelay ..." CLI command	2025-02-04 15:35:36 +11:00
Scott Powell	a93412216a	* new packet score function	2025-02-04 15:00:28 +11:00
Scott Powell	0f66210478	* ver bumps * RAK battery experiment	2025-02-04 13:40:54 +11:00
Scott Powell	7da0a5f7ec	* new RX delays based on SNR	2025-02-04 12:35:53 +11:00
Scott Powell	29e62b9ce2	* IdentityStore::save() was failing on RAK. * Repeater: CLI 'erase' command added.	2025-02-04 01:35:04 +11:00
Scott Powell	a0bb332ce5	* companion radio: new CMD_SET_RADIO_TX_POWER frame, RESP_CODE_SELF_INFO responses now include tx_power_dbm and MAX_LORA_TX_POWER	2025-02-03 21:06:08 +11:00
Scott Powell	7f15205e29	* 'help' updated.	2025-02-03 14:21:19 +11:00
Scott Powell	466caebd9a	* Terminal Chat: "set ..." commands, save to "node_prefs" file, consistent with the other firmwares	2025-02-03 13:56:57 +11:00
Scott Powell	7b31fc8ef9	* refactor: new helpers/nrf52 dir * RAK, startOTAUpdate()	2025-02-03 12:53:38 +11:00
Scott Powell	79f2d65a64	* BUG FIX: Initial key generation	2025-02-02 11:03:23 +11:00
Scott Powell	78fe83f065	* RAK batt read (hopefully) fixed	2025-02-02 09:44:59 +11:00
Scott Powell	c7f9fa95e1	* repeater and room server: added "set tx .." CLI command	2025-02-02 08:45:18 +11:00
Scott Powell	01fc05f496	* releasePacket() missing	2025-02-01 23:10:56 +11:00
Scott Powell	33bee48d38	* Terminal Chat: new commands "card" and "import"	2025-02-01 21:45:34 +11:00
Scott Powell	e877b135e8	* Repeater: timing changes for self-advert	2025-02-01 19:06:39 +11:00
Scott Powell	5523daad9d	* companion radio: RESP_CODE_END_OF_CONTACTS change	2025-02-01 17:04:26 +11:00
Scott Powell	ef45cb3ae0	* readme tweak	2025-02-01 14:31:19 +11:00
Scott Powell	f9fa913d9e	* companion radio CMD_SET_RADIO_PARAMS	2025-02-01 12:43:06 +11:00
Scott Powell	7ed2b17b35	* added LLCC68 module support	2025-01-31 12:46:33 +11:00
Scott Powell	6e708dc0ec	* oops, default LORA_FREQ revert	2025-01-31 11:51:30 +11:00
Scott Powell	16b81d2a6c	* new target/envs: LilyGo_T3S3_sx1262, _repeater and _terminal_chat	2025-01-31 11:46:19 +11:00
Scott Powell	cef23fa7d9	* ver bump	2025-01-31 00:47:26 +11:00
Scott Powell	ac8b7b31fe	* Room server: keep_alive changes	2025-01-31 00:02:29 +11:00
Scott Powell	8d0a17bc39	* Room server: no more "[posted]" replies from server	2025-01-30 20:09:00 +11:00
Scott Powell	78e307c495	* new Packet::writeTo(), readFrom() methods. (for saving snapshots of packets)	2025-01-30 18:34:18 +11:00
ripplebizandGitHub	bc655c8797	Update README.md	2025-01-30 15:10:05 +11:00
Scott Powell	9af5adb861	* BaseChatMesh::sendMessage(), new est_timeout (OUT) param	2025-01-30 14:03:31 +11:00
Scott Powell	f94d5f7423	* ver bumps	2025-01-30 13:46:04 +11:00
Scott Powell	659e66e3d1	* reset push_failures on successfully recv	2025-01-29 20:45:55 +11:00
Scott Powell	77a7656b99	* companion_radio: CMD_SEND_TXT_MSG format change	2025-01-29 14:06:46 +11:00
Scott Powell	f46263a263	* ContactInfo, added gps_lat, gps_lon * companion_radio: now also save gps_lat, gps_lon * BaseChatMesh: now parses gps_lat, gps_lon out of Advertisement	2025-01-29 13:56:39 +11:00
Scott Powell	2e3d2d13b2	* room_server: login response now with a 'keep alive' interval suggestion * room_server: new Request payload sub-type: REQ_TYPE_KEEP_ALIVE -> RESP_SERVER_KEEP_ALIVE	2025-01-29 13:14:42 +11:00
Scott Powell	4f0acbd8da	* companion_radio_usb: encoding in ArduinoSerialInterface changed to 16-bit frame lengths * MAX_FRAME_SIZE now 172 (to fit max 160 byte text msg)	2025-01-29 10:12:22 +11:00
Scott Powell	e53f0d0725	* refactored BaseChatMesh::sendMessage(), added timestamp param	2025-01-29 02:11:46 +11:00
Scott Powell	fe306a311e	* new "contacts2" file format	2025-01-29 00:51:52 +11:00
Scott Powell	dc11fe85cb	* new env: RAK_4631_companion_radio_usb	2025-01-29 00:02:05 +11:00
Scott Powell	cd81878e92	* added helpers/ArduinoSerialInterface, for the 'companion radio' * .ini, target envs: Heltec_v3_companion_radio_usb & Heltec_v3_companion_radio_ble	2025-01-28 23:26:55 +11:00
Scott Powell	d9dc76f197	* new helper for ESP32: SerialBLEInterface * Some refactoring in BaseChatMesh and Terminal Chat * new companion_radio example	2025-01-28 20:30:15 +11:00
Scott Powell	52f9c358b7	* repeater: extra CLI commands * room server: now loads/saves prefs, same CLI commands as repeater ("set ...")	2025-01-28 00:00:14 +11:00
Scott Powell	6fc21b815d	* HeltecV3 targets, now flash built-in LED on LoRa TX	2025-01-27 12:53:34 +11:00
Scott Powell	37a6c230ad	* new repeater CLI commands: "set af", "set name", "set lat", "set lon", "password"	2025-01-27 11:13:37 +11:00
Scott Powell	9a9b4fca82	* version bumps	2025-01-27 00:42:42 +11:00
Scott Powell	6c00653272	* TxtDataHelpers.h, with standard TXT sub-types * Terminal chat: added "time <epoch-secs>" * repeater: now recognises either TXT_TYPE_PLAIN or TXT_TYPE_CLI_DATA for CLI commands * Room server: now uses TXT_TYPE_SIGNED_PLAIN (for push/outbound), recognises TXT_TYPE_PLAIN (to add a Post), and TXT_TYPE_CLI_DATA for CLI command	2025-01-26 22:56:38 +11:00
Scott Powell	40c3dfa20b	* fixes for various targets (BaseChatMesh not compiling for non-terminal chat targets)	2025-01-26 15:40:32 +11:00
Scott Powell	a3ce65c770	* new env: Xiao_S3_WIO_terminal_chat	2025-01-26 14:48:17 +11:00
Scott Powell	42af720b02	* fix for RAK terminal chat	2025-01-26 07:00:56 +11:00
Scott Powell	6d5e69ae04	* support for GroupChannels in BaseChatMesh, and terminal chat	2025-01-26 00:46:36 +11:00
Scott Powell	e58d866949	* merge-bin.py script	2025-01-25 23:09:09 +11:00
Scott Powell	00a9e93754	* simple_secure_chat now with a proper CLI * new: BaseChatMesh class, for abstract chat client	2025-01-25 22:03:25 +11:00
Scott Powell	a3b7701bc0	* added 'ver' command to CLI (repeater and room server)	2025-01-24 22:00:13 +11:00
Scott Powell	e78aa66d57	* Bug fix: hasName(), missing return :-( * refactored methods to AdvertDataHelper.cpp	2025-01-24 19:45:45 +11:00
Scott Powell	068aeee87f	* Refactor: new AdvertDataHelpers.h	2025-01-24 11:41:37 +11:00
Scott Powell	2d34ac58ee	* room_server: crash fix, now detects timeouts on push post, if 3 timeouts on same client, then evicts/logs out	2025-01-23 21:24:23 +11:00
Scott Powell	b8a5c3369f	* NEW: simple_room_server	2025-01-23 16:07:44 +11:00
Scott Powell	f5f978a398	* CAD detect fixed	2025-01-22 21:48:18 +11:00
Scott Powell	932d845922	* fix for duplicate msgId's in repeater CLI view	2025-01-22 20:53:43 +11:00
Scott Powell	d69d2be722	* repeater: some refactors/clean ups, and (for ESP32) now using ESP32RTCClock which can keep time across a "reboot" command.	2025-01-22 19:47:53 +11:00
Scott Powell	22e87836db	* Mesh.cpp: optimisation to not retransmit packets handled by this node * simple_repeater: now supports a remote CLI	2025-01-22 12:11:43 +11:00
Scott Powell	6d10fab4f3	* commenting out CAD detect, for now	2025-01-21 22:35:20 +11:00
Scott Powell	47567b003f	* new targets: RAK_4631_chat_alice, and _bob	2025-01-21 21:36:44 +11:00
Scott Powell	96724cd26a	* onPeerPathRecv() refactored: 'reciprocal path' now handled in Mesh class, not in application layer	2025-01-21 18:39:55 +11:00
Scott Powell	de27dfacb6	* basic CAD before TX, for sx126x wrappers	2025-01-21 13:37:32 +11:00
Scott Powell	e838f405a7	* sx126x TX power boost for RAK target	2025-01-20 23:32:02 +11:00
Scott Powell	c9579a7b7c	* Notes for RAK support	2025-01-20 22:03:31 +11:00
Scott Powell	515285e3c9	* new target: RAK_4631_Repeater	2025-01-20 20:22:40 +11:00
Scott Powell	eb685db693	* readme update	2025-01-20 10:30:52 +11:00
Scott Powell	e4ec9aec0b	* tidy ups	2025-01-20 10:20:42 +11:00
Scott Powell	919e6d380c	* extra debug diagnostics for repeater	2025-01-19 20:22:02 +11:00
Scott Powell	88f21d9aa4	* new target env: Xiao S3 WIO repeater	2025-01-19 16:44:25 +11:00
Scott Powell	07ad40cac0	* repeater: build config: ADVERT_NAME, ADVERT_LAT, ADVERT_LON	2025-01-19 08:24:42 +11:00
Scott Powell	382b73f6c5	* Dispatcher: more stats added	2025-01-19 00:36:59 +11:00
Scott Powell	67b0dfa868	* configurable REPEATER_NAME	2025-01-18 22:52:34 +11:00
Scott Powell	f1ab110ae1	* new targets: Xiao_C3_repeater_sx1262, _sx1268	2025-01-18 21:45:47 +11:00
Scott Powell	4bf7d7d58f	* chat sample updated to auto-add Chat node advertisements	2025-01-17 02:12:58 +11:00
Scott Powell	9b09545379	* new advertisement app_data format	2025-01-16 22:26:01 +11:00
Scott Powell	86f11d08aa	* LocalIdentity:: writeTo( array ) and readFrom (array )	2025-01-16 01:59:11 +11:00
Scott Powell	ec92bfa6b1	* Refactor: Mesh::onPeer ... methods added 'secret' param. (is whatever getPeerSharedSecret() returned)	2025-01-15 20:52:13 +11:00
Scott Powell	cd92308c41	* simple_secure_chat: round trip time diagnostics, plus better timeout estimations	2025-01-15 18:47:25 +11:00
Scott Powell	57b7fc45b8	* simple_repeater CLI: basic commands (reboot, advert)	2025-01-15 17:14:08 +11:00
Scott Powell	20cd756c88	* Radio:: getLastSNR(), getLastRSSI() * MESH_PACKET_LOGGING	2025-01-15 17:02:49 +11:00
Scott Powell	cc5f21ab09	* more options for setting radio params via .ini file	2025-01-15 02:14:52 +11:00
Scott Powell	daa157cf49	* minor fixes	2025-01-15 00:39:32 +11:00
Scott Powell	a05b951018	* removed unused Destination class	2025-01-14 20:13:20 +11:00
Scott Powell	c44f124616	* new 'flags' byte added to PAYLOAD_TYPE_TXT_MSG	2025-01-14 13:11:34 +11:00
Scott Powell	20fccac2b7	* refactored the hasSeen(Packet) stuff.	2025-01-14 06:43:03 +11:00
Scott Powell	8983584dd8	* added getTransmitDelay(), applied to Flood mode retransmissions.	2025-01-13 20:45:01 +11:00
Scott Powell	d06532d6f1	* simple_secure_chat: bug fixes	2025-01-13 16:57:01 +11:00
Scott Powell	d291c6d31e	* zeroing of path_len now in sendFlood()	2025-01-13 15:09:03 +11:00
Scott Powell	2faff914f6	* separated PAYLOAD_TYPE_ANON_REQ, to new createAnonDatagram(), with extra 'sender' param. So, caller can use 'self_id' or ephemeral key	2025-01-13 15:01:15 +11:00
Scott Powell	6c7efdd0f6	Initial commit	2025-01-13 14:07:48 +11:00
				`@@ -1 +0,0 @@`
				!function(e,r){"function"==typeof define&&define.amd?define(r):"object"==typeof exports?module.exports=r():r()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. Please include / require Lunr before this script.");if(void 0===e.stemmerSupport)throw new Error("Lunr stemmer support is not present. Please include / require Lunr stemmer support before this script.");e.hi=function(){this.pipeline.reset(),this.pipeline.add(e.hi.trimmer,e.hi.stopWordFilter,e.hi.stemmer),this.searchPipeline&&(this.searchPipeline.reset(),this.searchPipeline.add(e.hi.stemmer))},e.hi.wordCharacters="ऀ-ःऄ-एऐ-टठ-यर-िी-ॏॐ-य़ॠ-९॰-ॿa-zA-Zａ-ｚＡ-Ｚ0-9０-９",e.hi.trimmer=e.trimmerSupport.generateTrimmer(e.hi.wordCharacters),e.Pipeline.registerFunction(e.hi.trimmer,"trimmer-hi"),e.hi.stopWordFilter=e.generateStopWordFilter("अत अपना अपनी अपने अभी अंदर आदि आप इत्यादि इन इनका इन्हीं इन्हें इन्हों इस इसका इसकी इसके इसमें इसी इसे उन उनका उनकी उनके उनको उन्हीं उन्हें उन्हों उस उसके उसी उसे एक एवं एस ऐसे और कई कर करता करते करना करने करें कहते कहा का काफ़ी कि कितना किन्हें किन्हों किया किर किस किसी किसे की कुछ कुल के को कोई कौन कौनसा गया घर जब जहाँ जा जितना जिन जिन्हें जिन्हों जिस जिसे जीधर जैसा जैसे जो तक तब तरह तिन तिन्हें तिन्हों तिस तिसे तो था थी थे दबारा दिया दुसरा दूसरे दो द्वारा न नके नहीं ना निहायत नीचे ने पर पहले पूरा पे फिर बनी बही बहुत बाद बाला बिलकुल भी भीतर मगर मानो मे में यदि यह यहाँ यही या यिह ये रखें रहा रहे ऱ्वासा लिए लिये लेकिन व वग़ैरह वर्ग वह वहाँ वहीं वाले वुह वे वो सकता सकते सबसे सभी साथ साबुत साभ सारा से सो संग ही हुआ हुई हुए है हैं हो होता होती होते होना होने".split(" ")),e.hi.stemmer=function(){return function(e){return"function"==typeof e.update?e.update(function(e){return e}):e}}();var r=e.wordcut;r.init(),e.hi.tokenizer=function(i){if(!arguments.length\|\|null==i\|\|void 0==i)return[];if(Array.isArray(i))return i.map(function(r){return isLunr2?new e.Token(r.toLowerCase()):r.toLowerCase()});var t=i.toString().toLowerCase().replace(/^\s+/,"");return r.cut(t).split("\|")},e.Pipeline.registerFunction(e.hi.stemmer,"stemmer-hi"),e.Pipeline.registerFunction(e.hi.stopWordFilter,"stopWordFilter-hi")}});
				`@@ -1 +0,0 @@`
				!function(e,t){"function"==typeof define&&define.amd?define(t):"object"==typeof exports?module.exports=t():t()(e.lunr)}(this,function(){return function(e){e.multiLanguage=function(){for(var t=Array.prototype.slice.call(arguments),i=t.join("-"),r="",n=[],s=[],p=0;p<t.length;++p)"en"==t[p]?(r+="\\w",n.unshift(e.stopWordFilter),n.push(e.stemmer),s.push(e.stemmer)):(r+=e[t[p]].wordCharacters,e[t[p]].stopWordFilter&&n.unshift(e[t[p]].stopWordFilter),e[t[p]].stemmer&&(n.push(e[t[p]].stemmer),s.push(e[t[p]].stemmer)));var o=e.trimmerSupport.generateTrimmer(r);return e.Pipeline.registerFunction(o,"lunr-multi-trimmer-"+i),n.unshift(o),function(){this.pipeline.reset(),this.pipeline.add.apply(this.pipeline,n),this.searchPipeline&&(this.searchPipeline.reset(),this.searchPipeline.add.apply(this.searchPipeline,s))}}}});
				`@@ -1 +0,0 @@`
				!function(r,t){"function"==typeof define&&define.amd?define(t):"object"==typeof exports?module.exports=t():t()(r.lunr)}(this,function(){return function(r){r.stemmerSupport={Among:function(r,t,i,s){if(this.toCharArray=function(r){for(var t=r.length,i=new Array(t),s=0;s<t;s++)i[s]=r.charCodeAt(s);return i},!r&&""!=r\|\|!t&&0!=t\|\|!i)throw"Bad Among initialisation: s:"+r+", substring_i: "+t+", result: "+i;this.s_size=r.length,this.s=this.toCharArray(r),this.substring_i=t,this.result=i,this.method=s},SnowballProgram:function(){var r;return{bra:0,ket:0,limit:0,cursor:0,limit_backward:0,setCurrent:function(t){r=t,this.cursor=0,this.limit=t.length,this.limit_backward=0,this.bra=this.cursor,this.ket=this.limit},getCurrent:function(){var t=r;return r=null,t},in_grouping:function(t,i,s){if(this.cursor<this.limit){var e=r.charCodeAt(this.cursor);if(e<=s&&e>=i&&(e-=i,t[e>>3]&1<<(7&e)))return this.cursor++,!0}return!1},in_grouping_b:function(t,i,s){if(this.cursor>this.limit_backward){var e=r.charCodeAt(this.cursor-1);if(e<=s&&e>=i&&(e-=i,t[e>>3]&1<<(7&e)))return this.cursor--,!0}return!1},out_grouping:function(t,i,s){if(this.cursor<this.limit){var e=r.charCodeAt(this.cursor);if(e>s\|\|e<i)return this.cursor++,!0;if(e-=i,!(t[e>>3]&1<<(7&e)))return this.cursor++,!0}return!1},out_grouping_b:function(t,i,s){if(this.cursor>this.limit_backward){var e=r.charCodeAt(this.cursor-1);if(e>s\|\|e<i)return this.cursor--,!0;if(e-=i,!(t[e>>3]&1<<(7&e)))return this.cursor--,!0}return!1},eq_s:function(t,i){if(this.limit-this.cursor<t)return!1;for(var s=0;s<t;s++)if(r.charCodeAt(this.cursor+s)!=i.charCodeAt(s))return!1;return this.cursor+=t,!0},eq_s_b:function(t,i){if(this.cursor-this.limit_backward<t)return!1;for(var s=0;s<t;s++)if(r.charCodeAt(this.cursor-t+s)!=i.charCodeAt(s))return!1;return this.cursor-=t,!0},find_among:function(t,i){for(var s=0,e=i,n=this.cursor,u=this.limit,o=0,h=0,c=!1;;){for(var a=s+(e-s>>1),f=0,l=o<h?o:h,_=t[a],m=l;m<_.s_size;m++){if(n+l==u){f=-1;break}if(f=r.charCodeAt(n+l)-_.s[m])break;l++}if(f<0?(e=a,h=l):(s=a,o=l),e-s<=1){if(s>0\|\|e==s\|\|c)break;c=!0}}for(;;){var _=t[s];if(o>=_.s_size){if(this.cursor=n+_.s_size,!_.method)return _.result;var b=_.method();if(this.cursor=n+_.s_size,b)return _.result}if((s=_.substring_i)<0)return 0}},find_among_b:function(t,i){for(var s=0,e=i,n=this.cursor,u=this.limit_backward,o=0,h=0,c=!1;;){for(var a=s+(e-s>>1),f=0,l=o<h?o:h,_=t[a],m=_.s_size-1-l;m>=0;m--){if(n-l==u){f=-1;break}if(f=r.charCodeAt(n-1-l)-_.s[m])break;l++}if(f<0?(e=a,h=l):(s=a,o=l),e-s<=1){if(s>0\|\|e==s\|\|c)break;c=!0}}for(;;){var _=t[s];if(o>=_.s_size){if(this.cursor=n-_.s_size,!_.method)return _.result;var b=_.method();if(this.cursor=n-_.s_size,b)return _.result}if((s=_.substring_i)<0)return 0}},replace_s:function(t,i,s){var e=s.length-(i-t),n=r.substring(0,t),u=r.substring(i);return r=n+s+u,this.limit+=e,this.cursor>=i?this.cursor+=e:this.cursor>t&&(this.cursor=t),e},slice_check:function(){if(this.bra<0\|\|this.bra>this.ket\|\|this.ket>this.limit\|\|this.limit>r.length)throw"faulty slice operation"},slice_from:function(r){this.slice_check(),this.replace_s(this.bra,this.ket,r)},slice_del:function(){this.slice_from("")},insert:function(r,t,i){var s=this.replace_s(r,t,i);r<=this.bra&&(this.bra+=s),r<=this.ket&&(this.ket+=s)},slice_to:function(){return this.slice_check(),r.substring(this.bra,this.ket)},eq_v_b:function(r){return this.eq_s_b(r.length,r)}}}},r.trimmerSupport={generateTrimmer:function(r){var t=new RegExp("^[^"+r+"]+"),i=new RegExp("[^"+r+"]+$");return function(r){return"function"==typeof r.update?r.update(function(r){return r.replace(t,"").replace(i,"")}):r.replace(t,"").replace(i,"")}}}}});
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