BluetoothAutomation-Arduino and HC05

 #include <SoftwareSerial.h>   //including library for Software Serial communication

SoftwareSerial mySerial (2, 3);    //(RX, TX)

//defining all the pins of Arduino

#define s1 10

#define s2 11

#define s3 12

#define s4 13

void setup()

{


  //setting all the pins

  pinMode(s1, OUTPUT);

  pinMode(s2, OUTPUT);

  pinMode(s3, OUTPUT);

  pinMode(s4, OUTPUT);

  //defining baudrate

  Serial.begin(9600);

  mySerial.begin(9600);

}


void loop()

{

  if (mySerial.available() == 1)  //if communication is going on

  {

    char val = mySerial.read();   //Read the data recieved

    Serial.println("Recieved data is " + (String) val);

    if (val == 'A')

    {

      digitalWrite(s1, HIGH);

      Serial.println("Switch 1 is ON");

    }

    if (val == 'a')

    {

      digitalWrite(s1, LOW);

      Serial.println("Switch 1 is OFF");

    }

    if (val == 'B')

    {

      digitalWrite(s2, HIGH);

      Serial.println("Switch 2 is ON");

    }

    if (val == 'b')

    {

      digitalWrite(s2, LOW);

      Serial.println("Switch 2 is OFF");

    }

    if (val == 'C')

    {

      digitalWrite(s3, HIGH);

      Serial.println("Switch 3 is ON");

    }

    if (val == 'c')

    {

      digitalWrite(s3, LOW);

      Serial.println("Switch 3 is OFF");

    }

    if (val == 'D')

    {

      digitalWrite(s4, HIGH);

      Serial.println("Switch 4 is ON");

    }

    if (val == 'd')

    {

      digitalWrite(s4, LOW);

      Serial.println("Switch 4 is OFF");

    }

    if (val == 'E')

    {

//digitalWrite(s5, HIGH);

      Serial.println("Switch 5 is ON");

    }

    if (val == 'e')

    {

//digitalWrite(s5, LOW);

      Serial.println("Switch 5 is OFF");

    }

    if (val == 'F')

    {

 //digitalWrite(s6, HIGH);

      Serial.println("Switch 6 is ON");

    }

    if (val == 'f')

    {

 //digitalWrite(s6, LOW);

      Serial.println("Switch 6 is OFF");

    }


    if (val == 'G')

    {

//digitalWrite(s7, HIGH);

      Serial.println("Switch 7 is ON");

    }

    if (val == 'g')

    {

 //digitalWrite(s7, LOW);

      Serial.println("Switch 7 is OFF");

    }

    if (val == 'H')

    {

      //digitalWrite(s8, HIGH);

      Serial.println("Switch 8 is ON");

    }

    if (val == 'h')

    {

 //digitalWrite(s8, LOW);

      Serial.println("Switch 8 is OFF");

    }

    if (val == 'I')

    {

 //digitalWrite(s9, HIGH);

      Serial.println("Switch 9 is ON");

    }

    if (val == 'i')

    {

//digitalWrite(s9, LOW);

      Serial.println("Switch 9 is OFF");

    }

  }

}

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