#include <IRremote.hpp>  // Use the latest IRremote library
#include <Servo.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>

const int irReceiverPin = 11;
const int servoPin = 9;
const int ledPin = 10;

const unsigned long irCode1 = 0xCF30FF00;  // Updated Remote control code 1 (0 degrees)
const unsigned long irCode3 = 0x857AFF00;  // Updated Remote control code 3 (180 degrees)

int currentAngle = 90;  // Initialize servo angle to 90 degrees (neutral position)

LiquidCrystal_I2C lcd(0x27, 16, 2);  // LCD display with address 0x27 and 16x2 size
Servo servo;  // Servo motor control

IRrecv irrecv(irReceiverPin);  // Declare the IR receiver
IRData results;  // Variable to store the IR results

void setup() {
  Serial.begin(9600);
  irrecv.begin(irReceiverPin);  // Start the receiver
  servo.attach(servoPin);  // Attach the servo to the specified pin
  servo.write(currentAngle);  // Set the initial servo position
  lcd.init();  // Initialize the LCD
  lcd.backlight();  // Turn on the LCD backlight
  pinMode(ledPin, OUTPUT);  // Set the LED pin as output
  digitalWrite(ledPin, LOW);  // Turn off the LED at the start
  updateLCD();  // Display the initial angle
}

void loop() {
  if (irrecv.decode()) {  // Check if an IR signal is received
    Serial.println(irrecv.decodedIRData.decodedRawData, HEX);  // Print the IR code in HEX

    // Perform actions based on the received IR code
    if (irrecv.decodedIRData.decodedRawData == irCode1) {
      servo.write(0);  // Move the servo to 0 degrees
      currentAngle = 0;
      digitalWrite(ledPin, LOW);  // Turn off the LED
      delay(500);  // Short delay for debounce
    } else if (irrecv.decodedIRData.decodedRawData == irCode3) {
      servo.write(180);  // Move the servo to 180 degrees
      currentAngle = 180;
      digitalWrite(ledPin, HIGH);  // Turn on the LED
      delay(500);  // Short delay for debounce
    }

    updateLCD();  // Update the LCD with the new angle
    irrecv.resume();  // Resume the receiver for the next signal
  }
}

// Function to update the LCD display with the current servo angle
void updateLCD() {
  lcd.clear();  // Clear the LCD screen
  lcd.setCursor(0, 0);
  lcd.print("Angle: ");
  lcd.print(currentAngle);  // Display the current angle
  lcd.print(" degrees");
}