diff --git a/src/hal/lopy.h b/src/hal/lopy.h
index 55699366..be36175b 100644
--- a/src/hal/lopy.h
+++ b/src/hal/lopy.h
@@ -12,9 +12,7 @@
 #define HAS_LED NOT_A_PIN // LoPy4 has no on board mono LED, we use on board RGB LED
 #define HAS_RGB_LED (0)  // WS2812B RGB LED on GPIO0
 
-// Pins for LORA chip SPI interface come from board file, we need some
-// additional definitions for LMIC
-#define LORA_IRQ  (23)
+// Note: Pins for LORA chip SPI interface come from board file pins_arduino.h
 
 // select WIFI antenna (internal = onboard / external = u.fl socket)
 #define HAS_ANTENNA_SWITCH  (16)      // pin for switching wifi antenna
diff --git a/src/hal/lopy4.h b/src/hal/lopy4.h
index 242fe275..badd4f8b 100644
--- a/src/hal/lopy4.h
+++ b/src/hal/lopy4.h
@@ -21,11 +21,7 @@
 #define HAS_RGB_LED (0)  // WS2812B RGB LED on GPIO0 (P2)
 #define BOARD_HAS_PSRAM // use extra 4MB extern RAM
 
-// Pins for LORA chip SPI interface come from board file, we need some
-// additional definitions for LMIC
-#define LORA_IRQ  (23)
-#define LORA_RST NOT_A_PIN
-#define SS 18
+// Note: Pins for LORA chip SPI interface come from board file pins_arduino.h
 
 // select WIFI antenna (internal = onboard / external = u.fl socket)
 #define HAS_ANTENNA_SWITCH  (21) // pin for switching wifi antenna (P12)