Arduino Home automation

Using this app with micro controllers (Arduino, Raspberry Pi, AVR, ARM etc), HC-05 Bluetooth Module and Relay Module you can control your home appliances using your smartphone remotely.

Read documentaion : http://unciarobotics.com/project/home-automation-project-with-arduino-using-hc-05/

The basic Arduino code to read data transmitted over Bluetooth is as follows:

const int relay = 2; //pin where Relay is connected

char data; //variable to store data

void setup() {

Serial.begin(9600); //Begin serial communication

pinMode(relay, OUTPUT); //make relay pin as output

}

void loop() {

if (Serial.available() > 0) //if there is data on RX

{

data = Serial.read(); //save it inside variable

if (data == 'a')

{ digitalWrite(relay, HIGH); //Turn ON the Light

Serial.println("Light ON");

}

if (data == 'b')

{ digitalWrite(relay, LOW); //Turn OFF the Light

Serial.println("Light OFF");

}

}

}

}

}

//Copy Paste this code into Arduino IDE and monitor the data on Serial Monitor.