#include "BluetoothSerial.h"
BluetoothSerial SerialBT; // crate a veriable named SerialBT
#include < LiquidCrystal_I2C.h >
LiquidCrystal_I2C lcd(0x27, 16, 2);
#include "ESP32Servo.h"
Servo myservo; // crate a veriable named myservo
const int buzzerPin = 23; // crate a veriable named buzzerPin
int trigPin = 26; // crate a veriable named trigPin
int echoPin = 25; // crate a veriable named echoPin
long duration; // crate a veriable named duration
long distance; // crate a veriable named distance
char command; // crate a veriable named command
const int irSensor = 27;
int irReading; // crate a veriable named irReading