Heltec boards sensor and low power features update (#4418)

* Update sensor drive and low power features.

* Update ST7789 TFT control logic.

* Update Heltec nRF board low power features.

* Update the GPS UART port pointer

src/main.cpp

@@ -319,6 +319,14 @@ void setup()
     digitalWrite(RESET_OLED, 1);
 #endif
 
+#ifdef SENSOR_POWER_CTRL_PIN
+    pinMode(SENSOR_POWER_CTRL_PIN,OUTPUT);
+    digitalWrite(SENSOR_POWER_CTRL_PIN,SENSOR_POWER_ON);
+#endif
+
+#ifdef SENSOR_GPS_CONFLICT
+    bool sensor_detected=false;
+#endif
 #ifdef PERIPHERAL_WARMUP_MS
     // Some peripherals may require additional time to stabilize after power is connected
     // e.g. I2C on Heltec Vision Master
@@ -458,6 +466,9 @@ void setup()
         LOG_INFO("No I2C devices found\n");
     } else {
         LOG_INFO("%i I2C devices found\n", i2cCount);
+#ifdef SENSOR_GPS_CONFLICT
+         sensor_detected=true;
+#endif
     }
 
 #ifdef ARCH_ESP32
@@ -703,6 +714,10 @@ void setup()
 
 #if !MESHTASTIC_EXCLUDE_GPS
     // If we're taking on the repeater role, ignore GPS
+#ifdef SENSOR_GPS_CONFLICT
+     if(sensor_detected==false)
+     {
+#endif
     if (HAS_GPS) {
         if (config.device.role != meshtastic_Config_DeviceConfig_Role_REPEATER &&
             config.position.gps_mode != meshtastic_Config_PositionConfig_GpsMode_NOT_PRESENT) {
@@ -714,6 +729,10 @@ void setup()
             }
         }
     }
+#ifdef SENSOR_GPS_CONFLICT
+    }
+#endif
+
 #endif
 
     nodeStatus->observe(&nodeDB->newStatus);