const int relay1 = 5;
const int LDR1 = 2;

int nilaiLDR1 = 0;


void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(relay1, OUTPUT);
  pinMode(LDR1, INPUT);


}

void loop() {
  bool sensor = digitalRead(LDR1);

  if (sensor) {
    digitalWrite(relay1, HIGH);
    Serial.println("Sensor = 1, Relay Menyala");
  } else {
    digitalWrite(relay1, LOW);
    Serial.println("Sensor = 1, Relay Mati");
  }
}