#define TASTERPIN 8 
#define LED_PIN 6 

void setup() {
  Serial.begin(9600); 
  pinMode (TASTERPIN, INPUT_PULLUP);
  pinMode (LED_PIN, OUTPUT);  

}

void loop() {
  bool tasterstatus = digitalRead (TASTERPIN);
  static bool vorherigerTasterstatus =  1; 
  static int zaehlwert = 0 ;
 digitalWrite(LED_PIN, !tasterstatus);
  if (tasterstatus == LOW && vorherigerTasterstatus == HIGH) {
          zaehlwert +=1 ;
          Serial.print ("Zählwert: ");
          Serial.println(zaehlwert);
                           }
  vorherigerTasterstatus = tasterstatus ; 
   delay (50); 

 }