Home automation using Arduino and bluetooth

Home automation using Arduino and Bluetooth

Hey readers, in this article we are going to discuss about the home automation technology. You can control your home appliances with your smartphone. All the details of this project are given here. Using this technology you can control your AC as well as DC home appliances wirelessly using the Bluetooth connection.. For more information about this project visit the original post of this project also bookmark TECHATRONIC.COM as all my further projects and tutorials will be pre-uploaded here.

What is Home automation using Arduino and Bluetooth?

In the app, there are many buttons that send some variable (instructions) when we press those specific buttons. Then the Arduino starts to compare the received data with the Database and generates the output signals accordingly. There are relay modules for dealing with AC appliances. By sending the different commands we can operate different appliances. We are using an HC05 Bluetooth module for establishing a connection between the Arduino board and our smartphone.

Bluetooth based home automation Components Required.

• Arduino Uno
• Bluetooth HC-05
• 4- channel Relay
• Jumper Wire
• Breadboard
• Arduino Cable

Home automation using Arduino and Bluetooth circuit diagram:-

Arduino Code for home automation;-

NOTE: Please upload this code to the Arduino.

void setup()
{
Serial.begin(9600); // buart rate
pinMode(12,OUTPUT); // RELAY MODULE
pinMode(11,OUTPUT); // LED
digitalWrite(12,HIGH); // relay module high
}
void loop()
{
if(Serial.available()>0)
{
char data= Serial.read();
Serial.println(data);
if(data=='a')
{
digitalWrite(12,LOW); // RELAY ON
digitalWrite(11,HIGH); // LED ON
Serial.println("RELAY AND LED ON");
}
if(data=='b')
{
digitalWrite(12,HIGH); // RELAY OFF
digitalWrite(11,LOW); // LED OFF
Serial.println("RELAY AND LED OFF");
}
}
}

Download Android Bluetooth control app apk 

How to configure the app with the Bluetooth

• Open your phone Bluetooth setting first
• Pair with the new device
• connect with the HC-05 with 1234 default password

Click on the “Connect to Bluetooth” option in the app

After connected Bluetooth, your app screen will be like the above image now you can control the appliances with your smartphone.

HAPPY LEARNING!