#define LDR_PIN 2
//LiquidCrystal_I2C lcd(0x27, 20, 4);
void setup() {
  pinMode(LDR_PIN, INPUT);
  Serial.begin(115200);
  //lcd.init();
  //lcd.backlight();
}
void loop() {
  //lcd.setCursor(2, 0);
  Serial.print("Room: ");
  if (digitalRead(LDR_PIN) == LOW) {
    Serial.println("Light!");
  } else {
    Serial.println("Dark ");
  }
  delay(100);
}