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

const int photoresistorPin = A0;
const int indicatorPin = 13;
#define Buzz 2

LiquidCrystal_I2C lcd(0x27, 20, 4); // Set the LCD I2C address and dimensions

void setup() {
  lcd.begin(20, 4);
  lcd.backlight(); // Turn on the LCD backlight
  pinMode(indicatorPin, OUTPUT);
  pinMode(Buzz, OUTPUT);
  noTone(Buzz);
}

void loop() {
  int sensorValue = analogRead(photoresistorPin);
  
  // Adjust the threshold value based on your environment and sensor characteristics
  int threshold = 500;
  
  if (sensorValue > threshold) {
    digitalWrite(indicatorPin, HIGH); // Turn on the LED indicator
    lcd.setCursor(0, 0);
    lcd.print("Light: Bright");
    tone(Buzz,500);
    delay(500);
  } else {
    digitalWrite(indicatorPin, LOW); // Turn off the LED indicator
    lcd.setCursor(0, 0);
    lcd.print("Light: Dim   ");
    noTone(Buzz);
  }
  
  lcd.setCursor(0, 1);
  lcd.print("Sensor Value: ");
  lcd.print(sensorValue);
  
  delay(500);
}