diff --git a/src/hal/eboxtube.h b/src/hal/eboxtube.h
index 86a69d7d..e95b6940 100644
--- a/src/hal/eboxtube.h
+++ b/src/hal/eboxtube.h
@@ -14,7 +14,8 @@
 #define CFG_sx1276_radio 1
 
 #define HAS_LED (22)     // Green LED on board
-#define HAS_RGB_LED SmartLed rgb_led(LED_WS2812, 1, GPIO_NUM_2) // WS2812B RGB LED on board
+#define RGB_LED_COUNT 1 // we have 1 LED
+#define HAS_RGB_LED SmartLed rgb_led(LED_WS2812, RGB_LED_COUNT, GPIO_NUM_2) // WS2812B RGB LED on board
 #define HAS_BUTTON (0)   // button "FLASH" on board
 #define DISABLE_BROWNOUT 1      // comment out if you want to keep brownout feature
 
diff --git a/src/hal/lopy4.h b/src/hal/lopy4.h
index e0736229..4e625dfa 100644
--- a/src/hal/lopy4.h
+++ b/src/hal/lopy4.h
@@ -21,7 +21,8 @@
 
 #define CFG_sx1276_radio 1
 #define HAS_LED NOT_A_PIN // LoPy4 has no on board mono LED, we use on board RGB LED
-#define HAS_RGB_LED SmartLed rgb_led(LED_WS2812, 1, GPIO_NUM_0) // WS2812B RGB LED on GPIO0 (P2)
+#define RGB_LED_COUNT 1 // we have 1 LEDs
+#define HAS_RGB_LED SmartLed rgb_led(LED_WS2812, RGB_LED_COUNT, GPIO_NUM_0) // WS2812B RGB LED on GPIO0 (P2)
 #define BOARD_HAS_PSRAM // use extra 4MB extern RAM
 
 // Note: Pins for LORA chip SPI interface come from board file pins_arduino.h
diff --git a/src/hal/m5fire.h b/src/hal/m5fire.h
index 969c05ee..0e53a8a1 100644
--- a/src/hal/m5fire.h
+++ b/src/hal/m5fire.h
@@ -39,6 +39,7 @@
 
 #define HAS_LED NOT_A_PIN // no on board LED (?)
 #define RGB_LED_COUNT 10
+
 #define HAS_RGB_LED SmartLed rgb_led(LED_SK6812, RGB_LED_COUNT, GPIO_NUM_15) // LED_SK6812 RGB LED on GPIO15
 #define HAS_BUTTON (39) // on board button A
 
diff --git a/src/hal/ttgov1.h b/src/hal/ttgov1.h
index 448327e4..bdf42be6 100644
--- a/src/hal/ttgov1.h
+++ b/src/hal/ttgov1.h
@@ -37,6 +37,6 @@
 // Pins for LORA chip SPI interface come from board file, we need some
 // additional definitions for LMIC
 #define LORA_IO1  (33)
-#define LORA_IO2  LMIC_UNUSED_PIN
+#define LORA_IO2  (32)  // ref.:  https://www.thethingsnetwork.org/forum/t/big-esp32-sx127x-topic-part-3/18436
 
 #endif
diff --git a/src/led.cpp b/src/led.cpp
index 64d33d2e..4936eff4 100644
--- a/src/led.cpp
+++ b/src/led.cpp
@@ -63,6 +63,7 @@ RGBColor rgb_hsl2rgb(float h, float s, float l) {
 }
 
 void rgb_set_color(uint16_t hue) {
+  int i = RGB_LED_COUNT;
   if (hue == COLOR_NONE) {
     // set Off
     for (int i = 0; i < RGB_LED_COUNT; i++)