int sensorPin = A0;
int ledPin = LED_BUILTIN;
int sensorWert = 0;

void setup() {
  pinMode(ledPin, OUTPUT);
}

void loop() {
  sensorWert = analogRead(sensorPin);
  digitalWrite(ledPin, HIGH);
  delay(sensorWert);
  digitalWrite(ledPin, LOW);
  delay(sensorWert);
}