#define potensiometer A0
int ADC_OUT;
int merah = 13;
int kuning = 9;
int putih = 4;
void setup() {
  Serial.begin(9600);
  pinMode (potensiometer, INPUT);
  pinMode(merah, OUTPUT);
  pinMode(kuning, OUTPUT);
  pinMode(putih, OUTPUT);
}
void loop() {
 ADC_OUT = analogRead(potensiometer);
 Serial.println(ADC_OUT);
 if((ADC_OUT >= 0)&&(ADC_OUT <=300)){
  digitalWrite(putih, HIGH);
  digitalWrite(kuning, LOW);
  digitalWrite(merah,LOW);
 }
else if((ADC_OUT >300)&&(ADC_OUT <=600)){
  digitalWrite(kuning, HIGH);
  digitalWrite(putih, LOW);
  digitalWrite(merah,LOW);
 }
else if((ADC_OUT >600)&&(ADC_OUT <=1023)){
  digitalWrite(merah, HIGH);
  digitalWrite(putih, LOW);
  digitalWrite(kuning,LOW);
 }
 else {
  digitalWrite(putih, LOW);
  digitalWrite(kuning, LOW);
  digitalWrite(merah, LOW);
 }
 delay(5000);
}