Submitted By:-VIVEK PORWAL

BBDNITM,LUCKNOW

ROLL.:-1305421125

Home Automation gives you access to control

devices in your home from a mobile device anywhere

in the world.

Lighting, appliances, electrical outlets, heating and

cooling systems– are hooked up to a remotely

controllable network.

Provide improved convenience, comfort, energy,

efficiency and security.

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 project presents a possible solution

whereby the user controls devices by using

their existing mobile phone ,where control is

communicated to the Microcontroller from

a mobile phone through its Bluetooth

interface.

Saves time

Saves money(long run)

Self maintenance

Security

Makes life easier

1. ANDROID PHONE

2. MICROCONTROLLER (ATM89S52)

3. BLUETOOTH (HC-05 MODULE)

4. RELAY

5. RELAY IC (ULN2003)

6. TRANSFORMER (220V/12V)

7. VOLTAGE REGULATOR IC 7805

8. DIODE BRIDGE

9. LED’S AND BULB’S

10. RESISTOR,CAPICTOR AND CONNCETING WIRES

11. SUPPLY BOARD

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 voltage regulator.

In the lowest power sleep mode it merely consumes 500 nA and will wake up within a few hundred microseconds.

It is preferable to use Bluetooth because now a days people have their smart phones with them all the time, since the smart phones have Bluetooth facility in them, thus it's better to use Bluetooth rather than using RF remotes or IR remotes. Have you ever seen people carrying remotes???

Using Bluetooth has many of its own advantages :1.It's secure.2.Easy to use.3.It works in short distance range(i.e. upto 10mtrs.)4.Anyone can find free Bluetooth apps on android and many more.

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.

First Bluetooth module connected to the android phone by the Bluetooth.

Android phone already have a application to provide the interference between mobile and the Bluetooth module.

By using the application ,the mobile send the command signal to microcontroller by the Bluetooth.

Bluetooth and relay IC is connect to the microcontroller by its pins.

The relay is connected to the load by its pins.

When microcontroller receives the command from mobile ,it operate the load.

This wireless technology is especially useful in home environment, where there exists hardly any infrastructure to interconnect intelligent appliances.

It could be suitably used for home automation in a cost-effective manner. Operating over unlicensed, universally available frequency of 2.4 GHz, it can link digital devices within a range of 10 m (expandable to 100 m, by increasing the transmitted power) at the speed of 1 Mbps.

Building upon this theme; we propose a home automation system based on Bluetooth technology.

The overall system should be fast enough to realize the true power of wireless technology.

Yet there is an increasingdemand for smart homes,where appliances reactautomatically to changingenvironmental conditions andcan be easily controlledthrough one common device.

This wireless technology isespecially useful in homeenvironment, where there existshardly any infrastructure tointerconnect intelligentappliances.

The main advantage of “Home Automation

through Android Mobile” is that the “Physically

Challenged and Disabled People” .

Replace television, air conditioner etc., remotes for

sleep mode.

Smart Home.

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.

Switchgear and Protection “P.S.Bimbra”;for

brief study of topic.

Google and Wikipedia for searching regards

topic.

www.electronicshub.org ;for explanation of

components.

www.circuitsgallery.com ;for circuit study.

ANY

QUERIESOR

SUGGESTIONS