diff --git a/src/knx_facade.cpp b/src/knx_facade.cpp
index 361ab5d..a65f0de 100644
--- a/src/knx_facade.cpp
+++ b/src/knx_facade.cpp
@@ -2,11 +2,11 @@
 #include "knx/bits.h"
 
 // definition for connecting the led of the different boards
-// for example the circuit on WeMos D1 R2 board --> GPIO--RESISTOR--LED--GND
-// for example the circuit on NODE MCU board    --> GPIO--LED--RESISTOR--VDD
+// for example the circuit on WeMos D1 R2 board --> GPIO--RESISTOR--LED--GND (high active)
+// for example the circuit on NODE MCU board    --> GPIO--LED--RESISTOR--VDD (low active)
 
-//#define ESP8266_WEMOS_D1_R2
-#define ESP8266_NODE_MCU
+//#define LED_PIN_HIGH_ACTIVE
+#define LED_PIN_LOW_ACTIVE
 
 #ifdef ARDUINO_ARCH_SAMD
 SamdPlatform platform;
@@ -28,20 +28,20 @@ void buttonUp()
 {
     if (knx.progMode())
     {
-        #ifdef ESP8266_WEMOS_D1_R2
+        #ifdef LED_PIN_HIGH_ACTIVE
 	digitalWrite(knx.ledPin(), HIGH);
 	#endif
-	#ifdef ESP8266_NODE_MCU
+	#ifdef LED_PIN_LOW_ACTIVE
         digitalWrite(knx.ledPin(), LOW);
 	#endif
         knx.progMode(false);
     }
     else
     {
-        #ifdef ESP8266_WEMOS_D1_R2
+        #ifdef LED_PIN_HIGH_ACTIVE
 	digitalWrite(knx.ledPin(), LOW);
 	#endif
-	#ifdef ESP8266_NODE_MCU
+	#ifdef LED_PIN_LOW_ACTIVE
         digitalWrite(knx.ledPin(), HIGH);
 	#endif
         knx.progMode(true);