Heltec Wireless Tracker support

src/helpers/HeltecV3Board.h

@@ -3,6 +3,7 @@
 #include <Arduino.h>
 
 // LoRa radio module pins for Heltec V3
+// Also for Heltec Wireless Tracker
 #define  P_LORA_DIO_1   14
 #define  P_LORA_NSS      8
 #define  P_LORA_RESET   RADIOLIB_NC
@@ -13,10 +14,12 @@
 
 // built-ins
 #define  PIN_VBAT_READ    1
-#define  PIN_ADC_CTRL    37
+#ifndef PIN_ADC_CTRL              // set in platformio.ini for Heltec Wireless Tracker (2)
+  #define  PIN_ADC_CTRL    37
+#endif
 #define  PIN_ADC_CTRL_ACTIVE    LOW
 #define  PIN_ADC_CTRL_INACTIVE  HIGH
-#define  PIN_LED_BUILTIN 35
+//#define  PIN_LED_BUILTIN 35
 #define  PIN_VEXT_EN     36
 
 #include "ESP32Board.h"