#include <LiquidCrystal_I2C.h>
#define LDR_PIN 2
int const LED= 8;
 
LiquidCrystal_I2C lcd(0x27, 20, 4);
 
void setup() {
  pinMode(LED, OUTPUT);
  pinMode(LDR_PIN, INPUT);
  lcd.init();
  lcd.backlight();
}
 
void loop() {
  lcd.setCursor(2, 0);
  lcd.print("Room: ");
  if (digitalRead(LDR_PIN) == LOW) {
      lcd.print("Terang!");
      digitalWrite(LED, LOW);
  } else {
    lcd.print("Gelap  ");
    digitalWrite(LED, HIGH);
  }
  delay(100);
}