diff --git a/examples/knx-demo/knx-demo.ino b/examples/knx-demo/knx-demo.ino
index fae29b3..278287c 100644
--- a/examples/knx-demo/knx-demo.ino
+++ b/examples/knx-demo/knx-demo.ino
@@ -1,5 +1,6 @@
 #include <knx.h>
 
+#include <WiFiManager.h>
 
 // create named references for easy access to group objects
 #define goCurrent knx.getGroupObject(1)
@@ -71,6 +72,15 @@ void setup()
         SerialDBG.print("Aenderung senden: "); SerialDBG.println(knx.paramByte(3));
         SerialDBG.print("Abgleich: "); SerialDBG.println(knx.paramByte(4));
     }
+	
+	// GPIO (?) of the ESP8266, in which case this is determined by the board selection
+	knx.ledPin(LED_BUILTIN);
+	// GPIO (?) of the ESP8266, the value depends on the circuit used on the board of the led
+	//                          if "0" or "low" then the output switches to gnd, at "1" or "high" the output switches to vcc
+	//                          if the next line is commented out then the default is: output switches to gnd
+	//knx.ledPinActiveOn(HIGH);
+	// GPIO (14) of the ESP8266, in which case it is the connector pin D5 on WeMos D1 R2
+	knx.buttonPin(14);
 
     // start the framework. Will get wifi first.
     knx.start();