Merge pull request #587 from alexbegoon/feature/xiao-c6-external-antenna-support

[Feature] Add external antenna support for XIAO ESP32C6

variants/xiao_c6/XiaoC6Board.cpp

@@ -1,7 +1,7 @@
 #include <Arduino.h>
 #include "target.h"
 
-ESP32Board board;
+XiaoC6Board board;
 
 #if defined(P_LORA_SCLK)
   static SPIClass spi(0);
@@ -47,3 +47,5 @@ mesh::LocalIdentity radio_new_identity() {
   RadioNoiseListener rng(radio);
   return mesh::LocalIdentity(&rng);  // create new random identity
 }
+
+

variants/xiao_c6/XiaoC6Board.h

@@ -0,0 +1,28 @@
+#pragma once
+
+#include <Arduino.h>
+#include <helpers/ESP32Board.h>
+
+class XiaoC6Board : public ESP32Board {
+public:
+  void begin() {
+    ESP32Board::begin();
+
+#ifdef USE_XIAO_ESP32C6_EXTERNAL_ANTENNA
+// Connect an external antenna to your XIAO ESP32C6 otherwise, it may be damaged!
+    pinMode(3, OUTPUT);
+    digitalWrite(3, LOW); // Activate RF switch control
+
+    delay(100);
+
+    pinMode(14, OUTPUT);
+    digitalWrite(14, HIGH); // Use external antenna
+#endif
+  }
+
+  const char* getManufacturerName() const override {
+    return "Xiao C6";
+  }
+};
+
+

variants/xiao_c6/platformio.ini

@@ -28,6 +28,7 @@ build_flags =
   -D DISABLE_WIFI_OTA=1
 build_src_filter = ${esp32c6_base.build_src_filter}
   +<../variants/xiao_c6>
+  +<XiaoC6Board.cpp>
 
 [env:Xiao_C6_Repeater]
 extends = Xiao_C6
@@ -87,6 +88,7 @@ build_flags =
   -D SX126X_DIO3_TCXO_VOLTAGE=1.8
   -D SX126X_CURRENT_LIMIT=140
   -D SX126X_RX_BOOSTED_GAIN=1
+  -D USE_XIAO_ESP32C6_EXTERNAL_ANTENNA=1
 
 [env:Meshimi_Repeater]
 extends = Meshimi

variants/xiao_c6/target.h

@@ -2,13 +2,14 @@
 
 #define RADIOLIB_STATIC_ONLY 1
 #include <RadioLib.h>
+#include <XiaoC6Board.h>
 #include <helpers/radiolib/RadioLibWrappers.h>
 #include <helpers/ESP32Board.h>
 #include <helpers/radiolib/CustomSX1262Wrapper.h>
 #include <helpers/AutoDiscoverRTCClock.h>
 #include <helpers/SensorManager.h>
 
-extern ESP32Board board;
+extern XiaoC6Board board;
 extern WRAPPER_CLASS radio_driver;
 extern AutoDiscoverRTCClock rtc_clock;
 extern SensorManager sensors;