#define pinLDR 2

void setup() {
  // put your setup code here, to run once:
  pinMode(pinLDR, INPUT);
  Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
  if(digitalRead(pinLDR) == LOW) {
    Serial.println("Ada cahaya!");
  } else {
    Serial.println("Gelap Coy");
  }
  delay(100);
}