const int led = 9;
const int sensor = A2;
int nilai = 0;
int hasil = LOW;

void setup() {
  pinMode(sensor, INPUT);
  pinMode(led, OUTPUT);
  Serial.begin(9600);

}

void loop() {
  // put your main code here, to run repeatedly:
  nilai = analogRead(sensor);
  if (nilai<524) {
    hasil = HIGH;
  } else {
    hasil = LOW;
  }
  digitalWrite(led, hasil);
  Serial.println(nilai);

}