const int TASTER_GRUEN = 5;
const int TASTER_BLAU = 4;
const int TASTER_GELB = 3;
const int LED_ROT = 11;
const int LED_CYAN = 10;
const int LED_VIOLETT = 9;

unsigned long VergangeneMillis;
unsigned long AlteMillis = 0;
unsigned long interval = 500;
bool ZustandSeriel = LOW;


void setup() {
  // put your setup code here, to run once:
  pinMode(LED_ROT, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
  VergangeneMillis = millis();

  if (VergangeneMillis - AlteMillis >= interval){
    AlteMillis = VergangeneMillis;
    bool zustandLED_ROT = digitalRead(LED_ROT);
    digitalWrite(LED_ROT, !zustandLED_ROT);
  }


  if (digitalRead(LED_ROT) == HIGH && ZustandSeriel == LOW){
    Serial.println("LED wurde eingeschaltet");
    ZustandSeriel = HIGH;
  }
  else if (digitalRead(LED_ROT) == LOW && ZustandSeriel == HIGH){
    Serial.println("LED wurde ausgeschaltet");
    ZustandSeriel = LOW;
  }

}