#include <BluetoothSerial.h>
BluetoothSerial ESP_BT;
const int pinLed=2;
int incoming;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  ESP_BT.begin("ESP32_LED_CONTROL");
  Serial.println("Bluetooth Device is Ready to Pair");
  pinMode(pinLed, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  if (ESP_BT.available()) {
    incoming=ESP_BT.read();
    Serial.print("Recaived");
    if (incoming==49) {
      digitalWrite(pinLed, HIGH);
      ESP_BT.println("Led turned ON");
    }
    if (incoming==48) {
      digitalWrite(pinLed, LOW);
      ESP_BT.println("Led turned OFF");
    }
  }
}