#define merah 12
#define biru 14
#define kuning 13
#define sensor 27

void setup() {
  Serial.begin(9600);
  pinMode(sensor, INPUT);
  pinMode(merah, OUTPUT);
  pinMode(kuning, OUTPUT);
  pinMode(biru, OUTPUT);
}
void loop() {
  int val = analogRead(sensor);
  if(val >= 100 && val < 400){
    digitalWrite(merah, HIGH);
    Serial.println("Stairway Lighting");
    delay(500);
  }else if(val >= 400 && val < 1000){
    digitalWrite(biru, HIGH);
    Serial.println("Office lighting");
    delay(500);
  }else if(val > 1000){
    digitalWrite(kuning, HIGH);
    Serial.println("Overcast day");
    delay(500);
  }else{
    Serial.println("Gelap Bang");
    delay(500);
  }
  Serial.println(val);
  digitalWrite(merah, LOW);
  digitalWrite(kuning, LOW);
  digitalWrite(biru, LOW);
}