How to make a Home automated with the help of Arduino

PROJECT  ON

HOME AUTOMATION

Requirement: - Arduino kit, jumble wires, 5v dc power supply, relay switches, ac power supply, Bluetooth module

Software used:- Arduino program based on C language, java

Introduction:- Home automation involves introducing a degree of computerized or automatic control to certain electrical and electronics system in a building. These lighting, temperature control, etc.., this paper demonstrate a simple home automation system which contains a remote mobile host controller and several client module (home appliances). The client modules communicate with host controllers through a wireless device such as a Bluetooth enabled mobile phone, in this case, an android based smart phone.

Circuit diagram:-

Program:-

  #define led 13

//The default baud rate of HC-05 module is 9600. The void setup code:

  char command;

String string;

  void setup()

{

Serial.begin(9600);

 pinMode(led, OUTPUT);

}

void loop()

{

if (Serial.available() > 0)

  {string = "";}   

   while(Serial.available() > 0)

    {

     command = ((byte)Serial.read());

     if(command == ':')

     {

  break;

     }

     else

      {

        string += command;

     }

      delay(1);

  }

    if(string == "1")

    {

      LEDOn();

    }  

    if(string =="2")

    {

      LEDOff();

    }

 }

//There are two functions in the code. Actually their names says everything.

    void LEDOn()

    {

          digitalWrite(led, HIGH);

    }

   void LEDOff()

    {

      digitalWrite(led, LOW);

    }

Description:-

Ardiuno- Arduino/Genuino Uno is a microcontroller board based on the ATmega328P. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz quartz crystal, a USB connection, a power jack, an ICSP header and a reset button. It contains everything needed to support the microcontroller simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.

Relay- A relay is an electrically operated switch.Relays are used where it is necessary to control a circuit by a low-power signal.Relays protect electrical circuits from overload or faults.

Bluetooth module- HC-05 is a Bluetooth Smart module targeted for low-power sensors and accessories. It integrates all features required for a Bluetooth Smart application.It is powered directly from a standard 3V coin cell battery or a pair of AAA batteries. In the lowest power sleep mode it merely consumes 500 nA and will wake up within a few hundred microseconds.

Application:- Yet there is an increasing demand for smart homes, where appliances react automatically to changing environmental conditions and can be easily controlled through one common device.This wireless technology is especially useful in home environment, where there exists hardly any infrastructure to interconnect intelligent appliances.

Advantages:- The main advantage of “Home Automation through Android Mobile” is that the “Physically Challenged and Disabled People” .Replace television, air conditioner, room lights, fans etc., remotes for sleep mode, Smart Home.

Conclusion:- Home Automation is undeniably a resource which can make a home environment automated. People can control their electrical devices via these Home Automation devices and set up controlling actions through Mobile. In future this product may have high potential for marketing.