ESP32 Bluetooth Home Automation in Telugu | mini engineering works telugu

 ESP32 Bluetooth Home Automation :

ESP32 Bluetooth Home Automation code:

#include "BluetoothSerial.h"

#if !defined(CONFIG_BT_ENABLED) || !defined(CONFIG_BLUEDROID_ENABLED)

#error Bluetooth is not enabled! Please run `make menuconfig` to and enable it

#endif

String res = "";

int re1=13;

BluetoothSerial SerialBT;

void setup() {

  Serial.begin(115200);

  pinMode(re1, OUTPUT);

  SerialBT.begin("ESP32 MEWT "); //Bluetooth device name

  Serial.println("The device started, now you can pair it with bluetooth!");

  digitalWrite(re1,HIGH);

}

void loop()

{

  while (!SerialBT.available()); // Wait Until anything is coming from bluetooth client

  

  while (SerialBT.available()) // Read until the bluetooth client is sending.

  {

    char v= SerialBT.read();

    res = res + v;

    delay(1);

  }

 

  // Assigning Actions on particular conditions

  if (res == "T")

  {

    Serial.println("Connection Established!!!");

  }

  if (res == "A")

  {

    Serial.println("Turning ON 1st led");

    digitalWrite(re1, HIGH);

  }

  if (res == "a")

  {

    Serial.println("Turning OFF 1st led");

    digitalWrite(re1, LOW);

  }

  res = ""; // clearing the string.

}