BME680 support (experimental)

src/hal/heltec.h

@@ -3,13 +3,9 @@
 
 #include <stdint.h>
 
-#define HAS_BME 1  // BME680 sensor on I2C bus (SDA=4/SCL=15); comment out if not present
-
 // Hardware related definitions for Heltec LoRa-32 Board
-
 #define HAS_LORA 1       // comment out if device shall not send data via LoRa
 #define CFG_sx1276_radio 1
-
 #define HAS_DISPLAY U8X8_SSD1306_128X64_NONAME_HW_I2C // OLED-Display on board
 #define HAS_LED (25) // white LED on board
 #define HAS_BUTTON (0) // button "PROG" on board