int LED =8;
int Schalter = A0;
int Werte;
int Helligkeit;

void setup() {
  // put your setup code here, to run once:
pinMode(LED, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
Werte = analogRead(Schalter);
Helligkeit = map(Werte,0,1023,0,255);

analogWrite(LED, Helligkeit);



}