#define TASTER_PIN 5


void setup() {
  // put your setup code here
  pinMode(TASTER_PIN, INPUT_PULLUP);
  pinMode(LED_BUILTIN, OUTPUT);
}

void loop() {
  // put your main code here
if(digitalRead(TASTER_PIN)==LOW){
    //TAster Gedrückt 

  if(digitalRead(LED_BUILTIN)==LOW){

    //LED einschalten
    digitalWrite(LED_BUILTIN, HIGH);
    delay(250);
  }   else {
   //LED ausschalten
   digitalWrite(LED_BUILTIN, LOW);
   delay(250);
 }
  
//warten bis Taster-Pin wieder high
do{
  } while (digitalRead(TASTER_PIN)==LOW);
  //mache nichts 
delay(200);
}
}