Hühnerklappe automatisch (LDR-Modul)

// Hühnerklappe - Relais Steuerung

#define LED 12
#define LDR 2
#define Relais1 8
#define Relais2 9

int val = 0;

void setup () {

pinMode (LED, OUTPUT);
pinMode (Relais1, OUTPUT);
pinMode (Relais2, OUTPUT);
pinMode (LDR, INPUT);

}

void loop () {

int val = digitalRead (LDR);

if (val == 0) {

       delay (3000);

       digitalWrite (Relais1, HIGH);

       digitalWrite (Relais2, LOW);

       digitalWrite (LED, HIGH);}

else {

       delay (3000);

       digitalWrite (Relais1, LOW);

       digitalWrite (Relais2, HIGH);

       digitalWrite (LED, LOW);}

}