diff --git a/platformio.ini b/platformio.ini
index 13a9819c..7cfea7ea 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -12,8 +12,8 @@
 ; ---> SELECT TARGET PLATFORM HERE! <---
 [platformio]
 ;env_default = lolin32lite, heltec, generic
-env_default = generic
-;env_default = heltec
+;env_default = generic
+env_default = heltec
 ;env_default = ttgov1
 ;env_default = ttgov2
 ;env_default = ttgov21
diff --git a/src/hal/ttgobeam.h b/src/hal/ttgobeam.h
index 8984d203..827d9fdc 100644
--- a/src/hal/ttgobeam.h
+++ b/src/hal/ttgobeam.h
@@ -3,10 +3,12 @@
 #define HAS_LORA  1       // comment out if device shall not send data via LoRa
 #define HAS_SPI   1       // comment out if device shall not send data via SPI
 #define CFG_sx1276_radio 1 // HPD13A LoRa SoC
-#define BOARD_HAS_PSRAM // use extra 4MB extern RAM
 
-#define HAS_LED GPIO_NUM_21 // on board green LED_G1
-//#define HAS_BUTTON GPIO_NUM_39 // on board button "BOOT" (next to reset button) !! seems not to work!!
+#define BOARD_HAS_PSRAM // use extra 4MB extern RAM
+#define HAS_LED GPIO_NUM_21 // on board green LED
+
+#define HAS_BUTTON GPIO_NUM_39 // on board button "BOOT" (next to reset button)
+
 #define HAS_BATTERY_PROBE ADC1_GPIO35_CHANNEL // battery probe GPIO pin -> ADC1_CHANNEL_7
 #define BATT_FACTOR 2 // voltage divider 100k/100k on board
 #define HAS_GPS 1 // use on board GPS