Blinky/src/main.cpp

#include <Homie.h>
#include <ArduinoOTA.h>

//D4 auf ground macht led leuchten

#define PIN_LED D4

HomieNode knobNode("blinky", "blinky", "commands");

void setup() {
  Serial.begin(115200);
  Serial << endl << endl;

  pinMode(PIN_LED, OUTPUT);

  Homie_setFirmware("blinky", "0.1.0");

  Homie.setup();
  ArduinoOTA.setHostname(Homie.getConfiguration().deviceId);
  ArduinoOTA.onStart([]() {
    Homie.getLogger() << "Arduino OTA angefragt" << endl;
  });
  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();
  }
}