int sensor = A0;     
int nilaisensor = 0;
int PIN = 13;
 
void setup() {
Serial.begin(9600);
  pinMode(PIN, OUTPUT);
}
 
void loop() {
  nilaisensor = analogRead(sensor);
  Serial.print("Data yang terbaca :");
  Serial.println(nilaisensor);

  if(analogRead(sensor) >= 500){
    digitalWrite(PIN, HIGH);
  }
  else{
    digitalWrite(PIN, LOW);
  }
}