From 8191c0901bebd50a25ac6b0ed708235647efab45 Mon Sep 17 00:00:00 2001
From: Scott Powell <sqij@protonmail.com>
Date: Wed, 25 Jun 2025 14:34:27 +1000
Subject: [PATCH] * new variant board: Tenstar C3

---
 variants/tenstar_c3/platformio.ini | 65 ++++++++++++++++++++++++++++++
 variants/tenstar_c3/target.cpp     | 48 ++++++++++++++++++++++
 variants/tenstar_c3/target.h       | 21 ++++++++++
 3 files changed, 134 insertions(+)
 create mode 100644 variants/tenstar_c3/platformio.ini
 create mode 100644 variants/tenstar_c3/target.cpp
 create mode 100644 variants/tenstar_c3/target.h

diff --git a/variants/tenstar_c3/platformio.ini b/variants/tenstar_c3/platformio.ini
new file mode 100644
index 00000000..226f47e4
--- /dev/null
+++ b/variants/tenstar_c3/platformio.ini
@@ -0,0 +1,65 @@
+[Tenstar_esp32_C3]
+extends = esp32_base
+board = esp32-c3-devkitm-1
+build_flags =
+  ${esp32_base.build_flags}
+  -I variants/tenstar_c3
+  -D ESP32_CPU_FREQ=80
+  -D LORA_TX_BOOST_PIN=4
+;  -D P_LORA_TX_LED=?
+  -D PIN_VBAT_READ=1
+  -D P_LORA_MISO=9
+  -D P_LORA_SCLK=8
+  -D P_LORA_MOSI=7
+  -D P_LORA_DIO_1=2
+  -D P_LORA_NSS=6
+  -D P_LORA_RESET=RADIOLIB_NC
+  -D P_LORA_BUSY=3
+;  -D PIN_BOARD_SDA=18
+;  -D PIN_BOARD_SCL=19
+  -D SX126X_DIO2_AS_RF_SWITCH=true
+  -D SX126X_DIO3_TCXO_VOLTAGE=1.8
+  -D SX126X_CURRENT_LIMIT=140
+build_src_filter = ${esp32_base.build_src_filter}
+  +<../variants/tenstar_c3>
+
+[env:Tenstar_C3_Repeater_sx1262]
+extends = Tenstar_esp32_C3
+build_src_filter = ${Tenstar_esp32_C3.build_src_filter}
+  +<../examples/simple_repeater/main.cpp>
+build_flags =
+  ${Tenstar_esp32_C3.build_flags}
+  -D RADIO_CLASS=CustomSX1262
+  -D WRAPPER_CLASS=CustomSX1262Wrapper
+  -D SX126X_RX_BOOSTED_GAIN=1
+  -D LORA_TX_POWER=22
+  -D ADVERT_NAME='"Tenstar C3 Repeater"'
+  -D ADVERT_LAT=0.0
+  -D ADVERT_LON=0.0
+  -D ADMIN_PASSWORD='"password"'
+  -D MAX_NEIGHBOURS=8
+;  -D MESH_PACKET_LOGGING=1
+;  -D MESH_DEBUG=1
+lib_deps =
+  ${Tenstar_esp32_C3.lib_deps}
+  ${esp32_ota.lib_deps}
+
+[env:Tenstar_C3_Repeater_sx1268]
+extends = Tenstar_esp32_C3
+build_src_filter = ${Tenstar_esp32_C3.build_src_filter}
+  +<../examples/simple_repeater/main.cpp>
+build_flags =
+  ${Tenstar_esp32_C3.build_flags}
+  -D RADIO_CLASS=CustomSX1268
+  -D WRAPPER_CLASS=CustomSX1268Wrapper
+  -D LORA_TX_POWER=22
+  -D ADVERT_NAME='"Tenstar C3 Repeater"'
+  -D ADVERT_LAT=0.0
+  -D ADVERT_LON=0.0
+  -D ADMIN_PASSWORD='"password"'
+  -D MAX_NEIGHBOURS=8
+ ; -D MESH_PACKET_LOGGING=1
+ ; -D MESH_DEBUG=1
+lib_deps =
+  ${Tenstar_esp32_C3.lib_deps}
+  ${esp32_ota.lib_deps}
diff --git a/variants/tenstar_c3/target.cpp b/variants/tenstar_c3/target.cpp
new file mode 100644
index 00000000..a29780f0
--- /dev/null
+++ b/variants/tenstar_c3/target.cpp
@@ -0,0 +1,48 @@
+#include <Arduino.h>
+#include "target.h"
+
+XiaoC3Board board;
+
+#if defined(P_LORA_SCLK)
+  static 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
+
+WRAPPER_CLASS radio_driver(radio, board);
+
+ESP32RTCClock fallback_clock;
+AutoDiscoverRTCClock rtc_clock(fallback_clock);
+SensorManager sensors;
+
+bool radio_init() {
+  fallback_clock.begin();
+  rtc_clock.begin(Wire);
+
+#if defined(P_LORA_SCLK)
+  return radio.std_init(&spi);
+#else
+  return radio.std_init();
+#endif
+}
+
+uint32_t radio_get_rng_seed() {
+  return radio.random(0x7FFFFFFF);
+}
+
+void radio_set_params(float freq, float bw, uint8_t sf, uint8_t cr) {
+  radio.setFrequency(freq);
+  radio.setSpreadingFactor(sf);
+  radio.setBandwidth(bw);
+  radio.setCodingRate(cr);
+}
+
+void radio_set_tx_power(uint8_t dbm) {
+  radio.setOutputPower(dbm);
+}
+
+mesh::LocalIdentity radio_new_identity() {
+  RadioNoiseListener rng(radio);
+  return mesh::LocalIdentity(&rng);  // create new random identity
+}
diff --git a/variants/tenstar_c3/target.h b/variants/tenstar_c3/target.h
new file mode 100644
index 00000000..0aea87dd
--- /dev/null
+++ b/variants/tenstar_c3/target.h
@@ -0,0 +1,21 @@
+#pragma once
+
+#define RADIOLIB_STATIC_ONLY 1
+#include <RadioLib.h>
+#include <helpers/RadioLibWrappers.h>
+#include <helpers/XiaoC3Board.h>
+#include <helpers/CustomSX1262Wrapper.h>
+#include <helpers/CustomSX1268Wrapper.h>
+#include <helpers/AutoDiscoverRTCClock.h>
+#include <helpers/SensorManager.h>
+
+extern XiaoC3Board board;
+extern WRAPPER_CLASS radio_driver;
+extern AutoDiscoverRTCClock rtc_clock;
+extern SensorManager sensors;
+
+bool radio_init();
+uint32_t radio_get_rng_seed();
+void radio_set_params(float freq, float bw, uint8_t sf, uint8_t cr);
+void radio_set_tx_power(uint8_t dbm);
+mesh::LocalIdentity radio_new_identity();