Lichtsensor

Schaltplan Lichtsensor


int led = 13;

void setup() {
  digitalWrite(led, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  int val = analogRead(0);
  if(val < 400) {
    digitalWrite(led, HIGH);
    Serial.println(val);
  } else {
    digitalWrite(led, LOW);
  }
}