#define LDR A0
#define LED 8

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:
  int Nilai_LDR = analogRead(A0);
  Serial.print("Hambatan LDR : ");
  Serial.println(Nilai_LDR);
  delay(500);

  if(Nilai_LDR <= 500){
    digitalWrite(LED, HIGH);
  }
  else {
    digitalWrite(LED, LOW);
  }
}