int sensorcahaya = A5;
int Led = 10;
int nilai;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(Led, OUTPUT);

}

void loop() {
  // put your main code here, to run repeatedly:
  nilai = analogRead(sensorcahaya );
  Serial.print("Nilai intesitas cahaya :");
  Serial.println(nilai);

  if (nilai > 800){
    digitalWrite(Led, HIGH);
    Serial.print("keadaan gelap, relay menyala ");
  }
  
  else{
  digitalWrite(Led, LOW);
  Serial.println("keadaan terang, relay mati");

  }
  delay (1000);
}