#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);

const int ldrPin = A0; // Analog pin connected to the LDR

void setup() {
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0, 0);
  lcd.print("   WELCOME TO    ");
  lcd.setCursor(0, 1);
  lcd.print(" CIRCUIT DIGEST   ");
  delay(2000);
  lcd.clear();
  Serial.begin(9600);
}

void loop() {
  int ldrValue = analogRead(ldrPin);

  lcd.setCursor(0, 0);
  lcd.print("LDR Value: ");
  lcd.print(ldrValue);

  // Set conditions here based on the analog reading
  if (ldrValue > 100 && ldrValue < 250) {
    lcd.setCursor(0, 1);
    lcd.print("Received 1");
    // Perform necessary actions if signal is detected
  } else if (ldrValue > 250 && ldrValue < 500) {
    lcd.setCursor(0, 1);
    lcd.print("Received 2");
  } else if (ldrValue > 500 && ldrValue < 1000) {
    lcd.setCursor(0, 1);
    lcd.print("Received 3");
  } else {
    lcd.setCursor(0, 1);
    lcd.print("No signal");
    // Perform necessary actions if no signal is detected
  }
  
  delay(1000); // Delay for stability
}