void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("LEd volgt drukknop");

  pinMode(21, OUTPUT);
  pinMode(32, INPUT_PULLDOWN);

  //Serial.println(INPUT_PULLDOWN);
  //Serial.println(INPUT_PULLUP);
}

void loop() {
  // put your main code here, to run repeatedly:
  
  digitalWrite(21, digitalRead(32));

}