#include <Wire.h> // Include the Wire library for I2C communication
#include <LiquidCrystal_I2C.h>

#define LDR_PIN A0 // Change LDR_PIN to the appropriate analog pin for your LDR

LiquidCrystal_I2C lcd(0x27, 20, 4);

void setup() {
  pinMode(LDR_PIN, INPUT);
  lcd.init();
  lcd.backlight();
  lcd.begin(20, 4); // Initialize LCD screen for 20x4 display
}

void loop() {
  int ldrValue = analogRead(LDR_PIN); // Read LDR value
  lcd.clear(); // Clear the LCD display before printing new values
  lcd.setCursor(0, 0);
  lcd.print("LDR Value: ");
  lcd.print(ldrValue);

  lcd.setCursor(0, 1);
  lcd.print("Room: ");
  if (ldrValue < 500) { // Adjust threshold based on your LDR
    lcd.print("Dark  ");
  } else {
    lcd.print("Light!");
  }
  delay(100); // Adjust delay as necessary
}