* HeltecV3 targets, now flash built-in LED on LoRa TX

examples/simple_repeater/main.cpp

@@ -453,7 +453,7 @@ public:
         savePrefs();
         strcpy(reply, "OK");
       } else {
-        sprintf(reply, "unknown config: %s", &command[4]);
+        sprintf(reply, "unknown config: %s", config);
       }
     } else if (memcmp(command, "ver", 3) == 0) {
       strcpy(reply, FIRMWARE_VER_TEXT);

platformio.ini

@@ -47,6 +47,7 @@ build_flags =
   -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!
@@ -80,7 +81,7 @@ 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="\"Test Room\""
+  -D ADVERT_NAME="\"Heltec Room\""
   -D ADVERT_LAT=-37.0
   -D ADVERT_LON=145.0
   -D ADMIN_PASSWORD="\"password\""

src/helpers/HeltecV3Board.h

@@ -42,6 +42,11 @@ public:
     adcAttachPin(PIN_VBAT_READ);
     analogReadResolution(10);
     pinMode(PIN_ADC_CTRL, OUTPUT);
+
+  #ifdef P_LORA_TX_LED
+    pinMode(P_LORA_TX_LED, OUTPUT);
+    digitalWrite(P_LORA_TX_LED, LOW);
+  #endif
   }
 
   void enterDeepSleep(uint32_t secs, int pin_wake_btn = -1) {
@@ -67,6 +72,15 @@ public:
     esp_deep_sleep_start();   // CPU halts here and never returns!
   }
 
+#if defined(P_LORA_TX_LED)
+  void onBeforeTransmit() override {
+    digitalWrite(P_LORA_TX_LED, HIGH);   // turn TX LED on
+  }
+  void onAfterTransmit() override {
+    digitalWrite(P_LORA_TX_LED, LOW);   // turn TX LED off
+  }
+#endif
+
   uint16_t getBattMilliVolts() override {
     digitalWrite(PIN_ADC_CTRL, PIN_ADC_CTRL_ACTIVE);