Blink functionality

src/main.cpp

@@ -23,7 +23,16 @@ void setup() {
   ArduinoOTA.begin();
 }
 
+long lastmillis = 0;
+bool stateled = false;
+
 void loop() {
   Homie.loop();
   ArduinoOTA.handle();
+  if ((lastmillis+500)<millis()){
+    Homie.getLogger() << "Switching" << endl;
+    stateled = !stateled;
+    digitalWrite(PIN_LED, stateled?HIGH:LOW);
+    lastmillis = millis();
+  }
 }