Bluetooth Classic with ESP32

Pada percobaan pertama ini, kita akan mencoba untuk mengirim data menggunakan komunikasi bluetooth sederhana. Adapun simulasi project yang di rangkai yaitu menghidupkan LED dengan inputan data dari handphone menggunakan aplikasi Serial Bluetooth Terminal 1.27.
Kondisi yang ingin ditampilkan yaitu :

• 0  LED turned OFF
• 1  LED turned ON
• 2  LED turned ON-OFF

Selamat Mencoba!

Perangkat yang dibutuhkan :

• ESP32 dengan kabel USB
• LED 
• Resistor
• 2 buah Kabel Jumper
• 1 buah Motherboard

Gambar Rangkaian : 

Code : 

#include "BluetoothSerial.h" //Header File for Serial Bluetooth, will be added by default into Arduino

BluetoothSerial ESP_BT; //Object for Bluetooth

int incoming;

const int pinLED = 14;

void setup() {

  Serial.begin(9600); //Start Serial monitor in 9600

  ESP_BT.begin("ESP32_LED"); //Name of your Bluetooth Signal

  Serial.println("Bluetooth Device is Ready to Pair");

  pinMode (pinLED, OUTPUT);//Specify that LED pin is output

}

void loop() {

 

  if (ESP_BT.available()) //Check if we receive anything from Bluetooth

  {

    incoming = ESP_BT.read(); //Read what we recevive

    Serial.print("Received:"); Serial.println(incoming);

    if (incoming == 49)

        {

        digitalWrite(pinLED, HIGH);

        ESP_BT.println("LED turned ON");

        }

       

    if (incoming == 48)

        {

        digitalWrite(pinLED, LOW);

        ESP_BT.println("LED turned OFF");

        }  

     if (incoming == 50)

        {

        ESP_BT.println("LED turned ON-OFF");

        digitalWrite(pinLED, HIGH);

        delay (1000);

        digitalWrite(pinLED, LOW);

        delay (1000);

        digitalWrite(pinLED, HIGH);

        delay (1000);

        digitalWrite(pinLED, LOW);

        delay (1000);

        digitalWrite(pinLED, HIGH);

        delay (1000);

        digitalWrite(pinLED, LOW);

        delay (1000);

        }     

  }

  delay(20);

}

Tampilan di Serial Bluetooth :