Arduino Bluetooth ON/OFF controll

Using HC-06 module.

Arduino code

I threw this circuit togeather in 10min and it works ok.

Arduino code:

void setup()

{

// set digital pin to control as an output

pinMode(13, OUTPUT);

// set the data rate for the SoftwareSerial port

Serial.begin(9600);

// Send test message to other device

Serial.println("Hello from Arduino");

}

char a; // stores incoming character from other device

void loop()

{

if (Serial.available())

{

a=(Serial.read());

if (a=='1')

{

digitalWrite(13, HIGH);

Serial.println("LED on");

}

if (a=='2')

{

digitalWrite(13, LOW);

Serial.println("LED off");

}

// you can add more "if" statements with other characters to add more commands

}

}