license "refactor" :)

README.md

@@ -243,8 +243,13 @@ zephcore/
 
 ## License
 
-Same license as the upstream MeshCore project.
+MIT License — see [`zephcore/LICENSE`](zephcore/LICENSE). Same license as the
+upstream MeshCore project, which this work relies heavily on (see the
+[official meshcore repo](https://github.com/meshcore-dev/MeshCore/)).
+
+A few vendored dependencies carry their own (compatible) licenses — see the
+notice at the bottom of `LICENSE` for details (Monocypher, Zephyr patches).
 
 ![aXa0YNLq_700w_0](https://github.com/user-attachments/assets/ddce17fd-7b83-4dc7-999f-0519593fcc3d)
 
-(FYI this is sarcasm, the whole project is 99,9% claude and cursor backed, relying heavily on the [official meshcore repo](https://github.com/meshcore-dev/MeshCore/) and the work they do in it)
+(FYI the whole project is 99,9% claude and cursor backed, relying heavily on the [official meshcore repo](https://github.com/meshcore-dev/MeshCore/) and the work they do in it)

zephcore/CMakeLists.txt

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: Apache-2.0
+# SPDX-License-Identifier: MIT
 
 cmake_minimum_required(VERSION 3.20.0)
 

zephcore/Kconfig

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: Apache-2.0
+# SPDX-License-Identifier: MIT
 
 source "$(ZEPHYR_BASE)/Kconfig.zephyr"
 

zephcore/Kconfig.psram

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: Apache-2.0
+# SPDX-License-Identifier: MIT
 #
 # DT-driven PSRAM auto-enable for ESP32 boards.
 #

zephcore/LICENSE

@@ -0,0 +1,32 @@
+MIT License
+
+Copyright (c) 2025-2026 ZephCore contributors
+
+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.
+
+---
+
+This repository vendors third-party code under separate, compatible licenses:
+
+- `lib/monocypher/` — Monocypher, by Loup Vaillant. Dual-licensed
+  BSD-2-Clause OR CC0-1.0 (see file headers).
+- `patches/zephyr/*.patch` — diffs against Zephyr RTOS (Apache-2.0). The
+  patches are applied to, and remain part of, the separately-licensed Zephyr
+  source tree fetched via `west update`; they are not distributed as
+  standalone files under this project's MIT license.

zephcore/adapters/ble/ZephyrBLE.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephCore BLE Adapter — NUS service, advertising, security, TX/RX
  *
  * Security: SMP pairing with SC + MITM + Bonding, DisplayOnly IO (app_passkey).

zephcore/adapters/ble/ZephyrBLE.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephCore BLE Adapter — NUS service, advertising, security, TX/RX
  */
 #pragma once

zephcore/adapters/board/ZephyrBoard.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  */
 
 #include "ZephyrBoard.h"

zephcore/adapters/board/ZephyrBoard.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Zephyr MainBoard base - nRF52840 DK and generic
  */
 

zephcore/adapters/clock/ZephyrMillisecondClock.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  */
 
 #include "ZephyrMillisecondClock.h"

zephcore/adapters/clock/ZephyrMillisecondClock.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Zephyr implementation of MillisecondClock
  */
 

zephcore/adapters/clock/ZephyrRTCClock.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  */
 
 #include "ZephyrRTCClock.h"

zephcore/adapters/clock/ZephyrRTCClock.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Zephyr software RTC - boot-relative time with settable offset
  */
 

zephcore/adapters/clock/ZephyrRTCDiscover.c

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  *
  * Compact raw-I2C hardware-RTC auto-discovery. See ZephyrRTCDiscover.h.
  *

zephcore/adapters/clock/ZephyrRTCDiscover.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  *
  * Boot-time hardware-RTC auto-discovery (compact raw-I2C reader).
  *

zephcore/adapters/datastore/ZephyrDataStore.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Zephyr DataStore - LittleFS-backed persistence with optional QSPI flash
  *
  * All platforms use DTS-automounted /lfs.

zephcore/adapters/datastore/ZephyrDataStore.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Zephyr DataStore - LittleFS-backed persistence with optional QSPI flash
  *
  * All platforms use DTS-automounted /lfs for identity, prefs, contacts.

zephcore/adapters/gps/ZephyrGPSManager.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Zephyr GPS Manager - GNSS power management, fix acquisition, constellation config
  *
  * Event-driven state machine with no polling loops:

zephcore/adapters/gps/ZephyrGPSManager.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Zephyr GPS Manager - GNSS power management, fix acquisition, constellation config
  *
  * Event-driven state machine: OFF → ACQUIRING → STANDBY → ACQUIRING → ...

zephcore/adapters/mqtt/ZephyrMQTTPublisher.c

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephyrMQTTPublisher — MQTT client thread for the Observer role.
  *
  * Thread flow:

zephcore/adapters/mqtt/ZephyrMQTTPublisher.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephyrMQTTPublisher — MQTT client thread for the Observer role.
  *
  * Dedicated thread: waits for WiFi ready, resolves broker hostname,

zephcore/adapters/ota/wifi_ota.c

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * WiFi OTA Firmware Update
  *
  * Starts a WiFi AP + HTTP server for browser-based firmware upload.

zephcore/adapters/ota/wifi_ota.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * WiFi OTA Firmware Update — Public API
  *
  * Starts a WiFi AP + HTTP server for browser-based firmware upload.

zephcore/adapters/radio/LR1110Radio.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * LR1110 hardware hooks for LoRaRadioBase.
  */
 

zephcore/adapters/radio/LR1110Radio.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephCore Radio adapter for LR1110/LR1120/LR1121 using Zephyr LoRa driver
  *
  * Thin wrapper around LoRaRadioBase — only hardware-specific hooks.

zephcore/adapters/radio/LR2021Radio.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * LR2021 hardware hooks for LoRaRadioBase.
  */
 

zephcore/adapters/radio/LR2021Radio.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephCore Radio adapter for LR2021 using Zephyr LoRa driver
  *
  * Thin wrapper around LoRaRadioBase — only hardware-specific hooks.

zephcore/adapters/radio/LoRaRadioBase.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * LoRa radio base class — shared algorithms for all radio adapters.
  */
 

zephcore/adapters/radio/LoRaRadioBase.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * LoRa radio base class — shared state and algorithms.
  * Subclasses implement hw*() primitives only.
  */

zephcore/adapters/radio/SX126xRadio.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * SX126x hardware hooks for LoRaRadioBase — native Zephyr driver.
  */
 

zephcore/adapters/radio/SX126xRadio.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephCore Radio adapter for SX126x (SX1261/SX1262/SX1268) using native Zephyr driver
  */
 

zephcore/adapters/radio/SX127xRadio.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * SX127x hardware hooks for LoRaRadioBase — Zephyr loramac-node driver.
  *
  * The SX127x driver (loramac-node/sx127x.c) exposes only the standard

zephcore/adapters/radio/SX127xRadio.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephCore Radio adapter for SX127x (SX1272/SX1276/SX1278) using Zephyr loramac-node driver.
  *
  * The SX127x loramac-node driver supports the standard Zephyr LoRa API

zephcore/adapters/radio/lr11xx/lr11xx_hal_zephyr.c

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * LR11xx HAL implementation for Zephyr — ZephCore
  */
 

zephcore/adapters/radio/lr11xx/lr11xx_hal_zephyr.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * LR11xx HAL for Zephyr — ZephCore
  */
 

zephcore/adapters/radio/lr20xx/lr20xx_hal_zephyr.c

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * LR20xx HAL implementation for Zephyr - ZephCore
  *
  * Based on Semtech SWDR001 lr20xx_driver and the ZephCore lr11xx HAL.

zephcore/adapters/radio/lr20xx/lr20xx_hal_zephyr.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * LR20xx HAL implementation for Zephyr - ZephCore
  *
  * Zephyr hardware context for the Semtech lr20xx_driver HAL interface.

zephcore/adapters/radio/radio_common.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Shared constants and utilities for all LoRa radio adapters.
  *
  * Anything duplicated between SX126xRadio and LR1110Radio belongs here.

zephcore/adapters/rng/RNG.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * RNG::nextInt - shared implementation
  */
 

zephcore/adapters/rng/ZephyrRNG.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  */
 
 #include "ZephyrRNG.h"

zephcore/adapters/rng/ZephyrRNG.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Zephyr CSPRNG implementation
  */
 

zephcore/adapters/sensors/ZephyrEnvSensors.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Zephyr Environment & Power Sensors
  *
  * Auto-detects available sensors via Zephyr devicetree nodelabels.

zephcore/adapters/sensors/ZephyrEnvSensors.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Zephyr Environment & Power Sensors
  *
  * Environment: temperature, humidity, pressure

zephcore/adapters/sensors/ZephyrSensorManager.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Backward-compatibility shim — includes GPS manager + env sensors.
  * All callers can continue using #include "ZephyrSensorManager.h".
  */

zephcore/adapters/transport/LinuxTCPTransport.c

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephCore TCP companion transport — drop-in replacement for ZephyrBLE.
  *
  * Implements the exact zephcore_ble_* C API from adapters/ble/ZephyrBLE.h

zephcore/adapters/transport/linux_native_setup.c

@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2026 ZephCore
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  *
  * Native-Linux (native_sim) runtime setup.
  *

zephcore/adapters/usb/ZephyrCompanionUSB.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephCore USB CDC Companion Transport
  *
  * V3-framed USB CDC for companion mode. Extracted from main_companion.cpp.

zephcore/adapters/usb/ZephyrCompanionUSB.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephCore USB CDC Companion Transport
  *
  * V3-framed USB CDC for companion mode: ISR, ring buffer, frame parsing,

zephcore/adapters/usb/ZephyrUSBCDC.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephCore — Unified USB CDC ACM init (companion + repeater + observer)
  *
  * See ZephyrUSBCDC.h for the contract. This implementation:

zephcore/adapters/usb/ZephyrUSBCDC.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephCore — Unified USB CDC ACM init (companion + repeater + observer)
  *
  * Owns the USBD device + CDC ACM class registration, the usbd_msg_callback

zephcore/adapters/wifi/ZephyrWiFiStation.c

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephyrWiFiStation — WiFi STA connection manager for the Observer role.
  *
  * Flow:

zephcore/adapters/wifi/ZephyrWiFiStation.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephyrWiFiStation — WiFi STA connection manager for the Observer role.
  *
  * Connects to a WPA2-PSK (or open) network, obtains a DHCP lease, syncs

zephcore/app/CompanionMesh.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * CompanionMesh implementation
  */
 

zephcore/app/CompanionMesh.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * CompanionMesh - ZephCore Companion device application layer
  */
 

zephcore/app/ObserverMesh.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ObserverMesh — listen-only LoRa mesh node implementation.
  */
 

zephcore/app/ObserverMesh.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ObserverMesh — listen-only LoRa mesh node.
  *
  * Extends mesh::Dispatcher directly (no routing, no flooding, no ACL).

zephcore/app/RepeaterDataStore.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * RepeaterDataStore - Filesystem storage for repeater
  */
 

zephcore/app/RepeaterDataStore.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * RepeaterDataStore - Filesystem storage for repeater
  *
  * Uses /lfs/repeater/ prefix to keep data separate from companion.

zephcore/app/RepeaterMesh.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * RepeaterMesh - LoRa mesh repeater implementation
  */
 

zephcore/app/RepeaterMesh.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * RepeaterMesh - LoRa mesh repeater implementation
  *
  * Extends mesh::Mesh with:

zephcore/app/RepeaterRegionCLI.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * RepeaterMesh region-definition CLI — the `region ...` command family and the
  * `region load` continuation-line parser.
  *

zephcore/app/RepeaterUplink.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * RepeaterMesh MQTT uplink — WiFi/MQTT telemetry publishing for repeaters.
  *
  * Split out of RepeaterMesh.cpp for readability. Defines the RepeaterMesh

zephcore/app/RoomServerMesh.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * RoomServerMesh - LoRa mesh shared-room (BBS) server
  *
  * A store-and-forward shared message room. Clients log in with an admin or

zephcore/app/RoomServerMesh.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * RoomServerMesh - LoRa mesh shared-room (BBS) server
  *
  * Extends mesh::Mesh with:

zephcore/app/RoomServerRegionCLI.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * RoomServerMesh region-definition CLI — the `region ...` command family and the
  * `region load` continuation-line parser.
  *

zephcore/app/main_observer.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * ZephCore Observer — listen-only LoRa node with WiFi+MQTT forwarding.
  *
  * Every received LoRa packet is published to an MQTT broker in

zephcore/app/observer_creds.cpp

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  */
 
 #include "observer_creds.h"

zephcore/app/observer_creds.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Observer runtime credentials — stored in LittleFS, configured via serial CLI.
  *
  * All connection parameters are runtime-configurable so no credentials ever

zephcore/boards/common/filesystem.dtsi

@@ -4,7 +4,7 @@
  *
  * Requires board to define: &lfs_partition
  *
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  */
 
 / {

zephcore/boards/common/nrf52_partitions_sdv6.dtsi

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * nRF52840 partition layout — SoftDevice s140 v6 + UF2 bootloader
  *
  * See nrf52_partitions_sdv7.dtsi for full include guide.

zephcore/boards/common/nrf52_partitions_sdv7.dtsi

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * nRF52840 partition layout — SoftDevice s140 v7 + UF2 bootloader
  *
  * ┌──────────────────────────────────────────────────────────────────┐

zephcore/boards/common/nrf52_wakeup.dtsi

@@ -17,7 +17,7 @@
  * Include this in any nRF52 board DTS that defines a 'buttons' gpio-keys node.
  * Boards without buttons (e.g. ikoka_nano, rak4631) should NOT include this.
  *
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  */
 
 &buttons {

zephcore/boards/common/observer.conf

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: Apache-2.0
+# SPDX-License-Identifier: MIT
 # Observer role configuration — listen-only LoRa node with WiFi+MQTT forwarding.
 # All parameters (WiFi SSID/PSK, MQTT host/port/TLS/user/pass, IATA location code)
 # are configured at runtime via serial CLI and stored in LittleFS.

zephcore/boards/common/qspi-ext.dtsi

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * QSPI external flash /ext automount — optional add-on for any platform
  *
  * See nrf52_partitions_sdv7.dtsi for full include guide.

zephcore/boards/common/rtc-i2c.dtsi

@@ -1,6 +1,6 @@
 /*
  * Common I2C Real-Time-Clock descriptors for ZephCore
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  *
  * OPT-IN: include this inside an &i2cN { ... } block ONLY on boards that
  * physically have a battery/cap-backed RTC. Kept separate from

zephcore/boards/common/sensors-i2c.dtsi

@@ -1,6 +1,6 @@
 /*
  * Common I2C Sensor Definitions for ZephCore
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  *
  * Include this file inside an &i2cN { ... } block to define all
  * supported sensor nodes on that bus.  Sensors that are not physically

zephcore/boards/esp32/heltec_wifi_lora32_v3/board.overlay

@@ -1,134 +1,134 @@
-/*
- * SPDX-License-Identifier: Apache-2.0
- * Heltec WiFi LoRa 32 V3 — ZephCore overlay
- *
- * The upstream Zephyr DTS already defines SX1262, SSD1306 OLED, button,
- * LED, battery ADC, Vext/ADC control, I2C0, SPI2, BLE, and WiFi.
- * This overlay adds ZephCore-specific integration on top.
- *
- * LoRa SPI2 pins:  SCLK=9, MOSI=10, MISO=11, NSS=8
- * LoRa control:    DIO1=14, BUSY=13, RESET=12
- * Display I2C0:    SDA=17, SCL=18 (SSD1306 @ 0x3C)
- * Battery ADC:     GPIO1 (ADC1 ch0), enable GPIO37, divider 100K/390K
- * Vext:            GPIO36 (active-LOW, powers OLED) — regulator + vin-supply in overlay
- * Button:          GPIO0
- * LED:             GPIO35
- */
-
-#include <zephyr/dt-bindings/input/input-event-codes.h>
-
-/ {
-	chosen {
-		/* Keep console/shell on UART0 for stable host logging on V3 */
-		zephyr,console = &uart0;
-		zephyr,shell-uart = &uart0;
-	};
-
-	/* Add label to upstream buttons node (defined without one) */
-	buttons: buttons {
-	};
-
-	/* Battery ADC — ZephCore reads via zephyr,user { io-channels }
-	 * Upstream vbatt node uses voltage-divider compatible which ZephCore
-	 * doesn't use. Multiplier: 3300mV full-scale * 5.42x = 17886.
-	 * (5.42x is Arduino's empirical divider factor for V3/V4.) */
-	zephyr,user {
-		io-channels = <&adc1 0>;
-		vbat-mv-multiplier = <17886>;
-	};
-
-	/* Battery ADC enable — GPIO37 (gpio1 pin 5) must be driven to read.
-	 * Upstream has adc_ctrl power-domain-gpio; ZephCore expects a
-	 * regulator-fixed named vbat_enable. */
-	vbat_enable: vbat-enable {
-		compatible = "regulator-fixed";
-		regulator-name = "vbat-enable";
-		enable-gpios = <&gpio1 5 GPIO_ACTIVE_LOW>;
-	};
-
-	/* Vext — GPIO36, active-LOW enables rail (matches Arduino periph_power / MeshCore
-	 * PIN_VEXT_EN). Replaces upstream vext_ctrl power-domain so SSD1306 init works with
-	 * CONFIG_PM_DEVICE=n. */
-	vext_enable: vext-enable {
-		compatible = "regulator-fixed";
-		regulator-name = "vext";
-		enable-gpios = <&gpio1 4 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
-		regulator-boot-on;
-		regulator-always-on;
-	};
-
-	/* Button chain — same mapping as RAK4631 / WisMesh Pocket (rak4631/board.overlay). */
-	user_btn_longpress {
-		compatible = "zephyr,input-longpress";
-		input = <&buttons>;
-		input-codes = <INPUT_KEY_0>;
-		short-codes = <INPUT_KEY_A>;
-		long-codes = <INPUT_KEY_ENTER>;
-		long-delay-ms = <1000>;
-	};
-
-	page_btn_multitap {
-		compatible = "zephcore,input-multi-tap";
-		input-codes = <INPUT_KEY_A>;
-		tap-codes = <INPUT_KEY_1 INPUT_KEY_LEFT>;
-		tap-delay-ms = <400>;
-	};
-};
-
-/* Enable native USB serial for console/CLI */
-&usb_serial {
-	status = "okay";
-};
-
-/* Add RX boosted mode and DIO1 pull-down to LoRa radio.
- * Upstream omits rx-boosted and has no pull-down on DIO1. */
-&lora0 {
-	dio1-gpios = <&gpio0 14 (GPIO_PULL_DOWN | GPIO_ACTIVE_HIGH)>;
-	rx-boosted;
-};
-
-/* Reduce CPU clock from 240 MHz to 160 MHz — saves power, HAL minimum */
-&cpu0 {
-	clock-frequency = <DT_FREQ_M(160)>;
-};
-
-&cpu1 {
-	clock-frequency = <DT_FREQ_M(160)>;
-};
-
-/* I2C sensors — auto-detected at runtime */
-&i2c0 {
-	#include "../../common/sensors-i2c.dtsi"
-
-	ssd1306_128x64: display-controller@3c {
-		/delete-property/ power-domains;
-		vin-supply = <&vext_enable>;
-	};
-};
-
-/*
- * Flash partitions — reclaim unused space from 8MB layout.
- * Delete lpcore slots, storage, scratch, and coredump partitions.
- * Repurpose 0x7A0000 - 0x800000 (384KB) for LittleFS.
- */
-/delete-node/ &slot0_lpcore_partition;
-/delete-node/ &slot1_lpcore_partition;
-/delete-node/ &storage_partition;
-/delete-node/ &scratch_partition;
-/delete-node/ &coredump_partition;
-
-&flash0 {
-	partitions {
-		/* LittleFS 384KB for DataStore + file-based BLE settings */
-		lfs_partition: partition@7a0000 {
-			label = "lfs";
-			reg = <0x7A0000 0x60000>;
-		};
-	};
-};
-
-/* LittleFS auto-mount — standard /lfs mount point */
-#include "../../common/filesystem.dtsi"
-
-/* After SSD1306 no longer references vext_ctrl, remove upstream power-domain node. */
-/delete-node/ &vext_ctrl;
+/*
+ * SPDX-License-Identifier: MIT
+ * Heltec WiFi LoRa 32 V3 — ZephCore overlay
+ *
+ * The upstream Zephyr DTS already defines SX1262, SSD1306 OLED, button,
+ * LED, battery ADC, Vext/ADC control, I2C0, SPI2, BLE, and WiFi.
+ * This overlay adds ZephCore-specific integration on top.
+ *
+ * LoRa SPI2 pins:  SCLK=9, MOSI=10, MISO=11, NSS=8
+ * LoRa control:    DIO1=14, BUSY=13, RESET=12
+ * Display I2C0:    SDA=17, SCL=18 (SSD1306 @ 0x3C)
+ * Battery ADC:     GPIO1 (ADC1 ch0), enable GPIO37, divider 100K/390K
+ * Vext:            GPIO36 (active-LOW, powers OLED) — regulator + vin-supply in overlay
+ * Button:          GPIO0
+ * LED:             GPIO35
+ */
+
+#include <zephyr/dt-bindings/input/input-event-codes.h>
+
+/ {
+	chosen {
+		/* Keep console/shell on UART0 for stable host logging on V3 */
+		zephyr,console = &uart0;
+		zephyr,shell-uart = &uart0;
+	};
+
+	/* Add label to upstream buttons node (defined without one) */
+	buttons: buttons {
+	};
+
+	/* Battery ADC — ZephCore reads via zephyr,user { io-channels }
+	 * Upstream vbatt node uses voltage-divider compatible which ZephCore
+	 * doesn't use. Multiplier: 3300mV full-scale * 5.42x = 17886.
+	 * (5.42x is Arduino's empirical divider factor for V3/V4.) */
+	zephyr,user {
+		io-channels = <&adc1 0>;
+		vbat-mv-multiplier = <17886>;
+	};
+
+	/* Battery ADC enable — GPIO37 (gpio1 pin 5) must be driven to read.
+	 * Upstream has adc_ctrl power-domain-gpio; ZephCore expects a
+	 * regulator-fixed named vbat_enable. */
+	vbat_enable: vbat-enable {
+		compatible = "regulator-fixed";
+		regulator-name = "vbat-enable";
+		enable-gpios = <&gpio1 5 GPIO_ACTIVE_LOW>;
+	};
+
+	/* Vext — GPIO36, active-LOW enables rail (matches Arduino periph_power / MeshCore
+	 * PIN_VEXT_EN). Replaces upstream vext_ctrl power-domain so SSD1306 init works with
+	 * CONFIG_PM_DEVICE=n. */
+	vext_enable: vext-enable {
+		compatible = "regulator-fixed";
+		regulator-name = "vext";
+		enable-gpios = <&gpio1 4 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
+	/* Button chain — same mapping as RAK4631 / WisMesh Pocket (rak4631/board.overlay). */
+	user_btn_longpress {
+		compatible = "zephyr,input-longpress";
+		input = <&buttons>;
+		input-codes = <INPUT_KEY_0>;
+		short-codes = <INPUT_KEY_A>;
+		long-codes = <INPUT_KEY_ENTER>;
+		long-delay-ms = <1000>;
+	};
+
+	page_btn_multitap {
+		compatible = "zephcore,input-multi-tap";
+		input-codes = <INPUT_KEY_A>;
+		tap-codes = <INPUT_KEY_1 INPUT_KEY_LEFT>;
+		tap-delay-ms = <400>;
+	};
+};
+
+/* Enable native USB serial for console/CLI */
+&usb_serial {
+	status = "okay";
+};
+
+/* Add RX boosted mode and DIO1 pull-down to LoRa radio.
+ * Upstream omits rx-boosted and has no pull-down on DIO1. */
+&lora0 {
+	dio1-gpios = <&gpio0 14 (GPIO_PULL_DOWN | GPIO_ACTIVE_HIGH)>;
+	rx-boosted;
+};
+
+/* Reduce CPU clock from 240 MHz to 160 MHz — saves power, HAL minimum */
+&cpu0 {
+	clock-frequency = <DT_FREQ_M(160)>;
+};
+
+&cpu1 {
+	clock-frequency = <DT_FREQ_M(160)>;
+};
+
+/* I2C sensors — auto-detected at runtime */
+&i2c0 {
+	#include "../../common/sensors-i2c.dtsi"
+
+	ssd1306_128x64: display-controller@3c {
+		/delete-property/ power-domains;
+		vin-supply = <&vext_enable>;
+	};
+};
+
+/*
+ * Flash partitions — reclaim unused space from 8MB layout.
+ * Delete lpcore slots, storage, scratch, and coredump partitions.
+ * Repurpose 0x7A0000 - 0x800000 (384KB) for LittleFS.
+ */
+/delete-node/ &slot0_lpcore_partition;
+/delete-node/ &slot1_lpcore_partition;
+/delete-node/ &storage_partition;
+/delete-node/ &scratch_partition;
+/delete-node/ &coredump_partition;
+
+&flash0 {
+	partitions {
+		/* LittleFS 384KB for DataStore + file-based BLE settings */
+		lfs_partition: partition@7a0000 {
+			label = "lfs";
+			reg = <0x7A0000 0x60000>;
+		};
+	};
+};
+
+/* LittleFS auto-mount — standard /lfs mount point */
+#include "../../common/filesystem.dtsi"
+
+/* After SSD1306 no longer references vext_ctrl, remove upstream power-domain node. */
+/delete-node/ &vext_ctrl;

zephcore/boards/esp32/heltec_wifi_lora32_v4/board.overlay

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Heltec WiFi LoRa 32 V4 — ZephCore overlay
  *
  * The DTS already defines: SX1262 (lora0), SSD1306 OLED, button, LED, PWM,

zephcore/boards/esp32/heltec_wifi_lora32_v4/heltec_wifi_lora32_v4-pinctrl.dtsi

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Heltec WiFi LoRa 32 V4 — Pin Control Definitions
  *
  * Pin assignments (identical to V3):

zephcore/boards/esp32/heltec_wifi_lora32_v4/heltec_wifi_lora32_v4_procpu.dts

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Heltec WiFi LoRa 32 V4 — ZephCore procpu DTS
  *
  * Hardware:

zephcore/boards/esp32/heltec_wifi_lora32_v43/board.overlay

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Heltec WiFi LoRa 32 V4.3 — ZephCore overlay
  *
  * The DTS already defines: SX1262 (lora0), SSD1306 OLED, button, LED, PWM,

zephcore/boards/esp32/heltec_wifi_lora32_v43/heltec_wifi_lora32_v43-pinctrl.dtsi

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Heltec WiFi LoRa 32 V4.3 — Pin Control Definitions
  *
  * Pin assignments identical to V4.2 (GPIO5/CTX is plain GPIO, no pinctrl entry needed):

zephcore/boards/esp32/heltec_wifi_lora32_v43/heltec_wifi_lora32_v43_procpu.dts

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Heltec WiFi LoRa 32 V4.3 — ZephCore procpu DTS
  *
  * Hardware:

zephcore/boards/esp32/lilygo_tlora_c6/Kconfig.lilygo_tlora_c6

@@ -1,6 +1,6 @@
 # LilyGo T-LoRa C6 board configuration
 
-# SPDX-License-Identifier: Apache-2.0
+# SPDX-License-Identifier: MIT
 
 config BOARD_LILYGO_TLORA_C6
 	select SOC_ESP32_C6_WROOM_1U_N4

zephcore/boards/esp32/lilygo_tlora_c6/board.cmake

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: Apache-2.0
+# SPDX-License-Identifier: MIT
 
 if(NOT "${OPENOCD}" MATCHES "^${ESPRESSIF_TOOLCHAIN_PATH}/.*")
   set(OPENOCD OPENOCD-NOTFOUND)

zephcore/boards/esp32/lilygo_tlora_c6/board.conf

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: Apache-2.0
+# SPDX-License-Identifier: MIT
 # LilyGo T-LoRa C6 (T3-C6) + SX1262 LoRa
 #
 # Hardware:

zephcore/boards/esp32/lilygo_tlora_c6/board.overlay

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * LilyGo T-LoRa C6 (T3-C6) + SX1262 LoRa
  *
  * Pin mapping (from Arduino MeshCore variants/lilygo_tlora_c6):

zephcore/boards/esp32/lilygo_tlora_c6/lilygo_tlora_c6-pinctrl.dtsi

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * LilyGo T-LoRa C6 — Pin Control Definitions
  *
  * Pin mapping (from Arduino MeshCore variants/lilygo_tlora_c6):

zephcore/boards/esp32/lilygo_tlora_c6/lilygo_tlora_c6_hpcore.dts

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * LilyGo T-LoRa C6 (T3-C6) — ESP32-C6-MINI-1U, 4MB flash
  *
  * Hardware:

zephcore/boards/esp32/station_g2/board.conf

@@ -1,26 +1,26 @@
-# SPDX-License-Identifier: Apache-2.0
-# BQ Station G2 — ZephCore board configuration
-#
-# Hardware:
-#   ESP32-S3 (16MB flash, 8MB PSRAM)
-#   SX1262 + PA on SPI2 (TX power 7 dBm → ~27 dBm with PA)
-#   SH1106 128x64 OLED on I2C0
-#   GPS on UART1
-#   User button on GPIO38
-#
-# Include order: prj.conf → zephcore_common.conf → esp32_common.conf → board.conf
-
-# Board identification
-CONFIG_ZEPHCORE_BOARD_NAME="Station G2"
-CONFIG_BT_DIS_MODEL_NUMBER_STR="BQ Station G2"
-
-# TX power — Station G2 has ~20dB external PA.
-# Default 15 dBm → ~35 dBm output (P1dB point). Not capped — user can raise.
-CONFIG_ZEPHCORE_DEFAULT_TX_POWER_DBM=15
-
-# Flash size — 16MB (override Zephyr default)
-CONFIG_ESPTOOLPY_FLASHSIZE_16MB=y
-
-# PSRAM mode — ESP32-S3R8 is silicon-strapped OPI octal.
-# Enable is auto-detected from DTS by Kconfig.psram; only the mode is set here.
-CONFIG_SPIRAM_MODE_OCT=y
+# SPDX-License-Identifier: MIT
+# BQ Station G2 — ZephCore board configuration
+#
+# Hardware:
+#   ESP32-S3 (16MB flash, 8MB PSRAM)
+#   SX1262 + PA on SPI2 (TX power 7 dBm → ~27 dBm with PA)
+#   SH1106 128x64 OLED on I2C0
+#   GPS on UART1
+#   User button on GPIO38
+#
+# Include order: prj.conf → zephcore_common.conf → esp32_common.conf → board.conf
+
+# Board identification
+CONFIG_ZEPHCORE_BOARD_NAME="Station G2"
+CONFIG_BT_DIS_MODEL_NUMBER_STR="BQ Station G2"
+
+# TX power — Station G2 has ~20dB external PA.
+# Default 15 dBm → ~35 dBm output (P1dB point). Not capped — user can raise.
+CONFIG_ZEPHCORE_DEFAULT_TX_POWER_DBM=15
+
+# Flash size — 16MB (override Zephyr default)
+CONFIG_ESPTOOLPY_FLASHSIZE_16MB=y
+
+# PSRAM mode — ESP32-S3R8 is silicon-strapped OPI octal.
+# Enable is auto-detected from DTS by Kconfig.psram; only the mode is set here.
+CONFIG_SPIRAM_MODE_OCT=y

zephcore/boards/esp32/station_g2/board.overlay

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * BQ Station G2 — ZephCore overlay
  *
  * Adds LoRa radio, display, GPS, button, and filesystem on top of the

zephcore/boards/esp32/station_g2/station_g2-pinctrl.dtsi

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * BQ Station G2 — Pin Control Definitions
  *
  * Pin mapping (from Arduino MeshCore variants/station_g2):

zephcore/boards/esp32/station_g2/station_g2_procpu.dts

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * BQ Station G2 — ESP32-S3, 16MB flash, 8MB PSRAM
  *
  * Hardware:

zephcore/boards/esp32/ttgo_lora32/board.overlay

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * TTGO LoRa32 — ZephCore overlay
  *
  * The upstream Zephyr DTS (ttgo_lora32_esp32_procpu.dts) already defines:

zephcore/boards/esp32/xiao_esp32c3/board.conf

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: Apache-2.0
+# SPDX-License-Identifier: MIT
 # Seeed XIAO ESP32-C3 + SX1262 LoRa
 #
 # Hardware:

zephcore/boards/esp32/xiao_esp32c3/board.overlay

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * XIAO ESP32-C3 + SX1262 LoRa
  *
  * Pin mapping (from Arduino MeshCore variants/xiao_c3):

zephcore/boards/esp32/xiao_esp32c6/board.conf

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: Apache-2.0
+# SPDX-License-Identifier: MIT
 # Seeed XIAO ESP32-C6 + SX1262 LoRa
 #
 # Hardware:

zephcore/boards/esp32/xiao_esp32c6/board.overlay

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * XIAO ESP32-C6 + SX1262 LoRa
  *
  * Pin mapping (from Arduino MeshCore variants/xiao_c6):

zephcore/boards/esp32/xiao_esp32s3/board.conf

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: Apache-2.0
+# SPDX-License-Identifier: MIT
 # Seeed XIAO ESP32-S3 + WIO-SX1262 LoRa
 #
 # Hardware:

zephcore/boards/esp32/xiao_esp32s3/board.overlay

@@ -1,5 +1,5 @@
 /*
- * SPDX-License-Identifier: Apache-2.0
+ * SPDX-License-Identifier: MIT
  * Seeed XIAO ESP32-S3 + WIO-SX1262 LoRa
  *
  * Pin mapping (from Arduino MeshCore variants/xiao_s3_wio):