#include <Wire.h>
#include <LiquidCrystal_I2C.h>

// Create an instance of the LCD class
LiquidCrystal_I2C lcd(0x27, 16, 2);

const int ldrPin = A0;  // LDR connected to analog pin A0
const int ledPin = 13;  // LED connected to digital pin 13

void setup() {
  // Initialize the LCD
  lcd.begin(16, 4);
  lcd.print("LIGHT INTENSITY :");
  pinMode(ledPin, OUTPUT);
}

void loop() {
  int ldrValue = analogRead(ldrPin);
  lcd.setCursor(2, 2);  
  lcd.print(ldrValue);

  if (ldrValue < 500) {
    digitalWrite(ledPin, HIGH);  // Turn on the LED if LDR value is below 500
  } else {
    digitalWrite(ledPin, LOW);   // Turn off the LED if LDR value is above 500
  }

  delay(500);  
}