HOME APPLIANCE CONTROL USING

GSM TECHNOLOGY

Guided by :-Prof. Subhransu Sekhar panda(ECE department)

Team Members :-

Chinmoy kanta jena Chinmaya singh Kamalakanta behera Jyotiprakash mishra Krushna chandra sahoo

Reasons for choosing this project :-

Objective of this project is to control our home appliance from remote area.

There are many home wireless based devices for controlling processes, but they are more expensive.

So here we are using all the basic components that are used in our daily life like cell phones, Sim card, GSM modem etc which make our project cheaper and very simple to use.

Project details :- Aim of the ‘project ‘ Is to develop a system based on

Embedded micro controller ,which is used for controlling various appliances at home using GSM network and which provides a security feature.

The major hardware interfaces to micro controller are LCD display and a modem(GSM).Also the appliances are interfaced to the micro controller that are to be controlled.

A serial driver IC is used for serial data transmission.

Block diagram :-

Appliance 1

AT89C51

Micro Controlle

r

Display Unit

Power supply unit

GSM

modemRelay2

Relay 1

Appliance 2

RELAY

DRIVER

Serial driver

POWER SUPPLY CKT.

LED

LED

1k

- +

IN4007 * 4

GND

9-0-9Vac/1Amp

1000uF/35V

7812

POWER SUPPLY

+5V

+12V230VAC

50Hz 2.2k

7805transformer

RELAY :

• A relay is used to isolate one electrical circuit from another.

• It allows a low current control circuit to make or break an electrically isolated high current circuit path.

LCD DISPLAY

Enable (E)-This line allows access to the display through R/W and RS lines. When this line is low, the LCD is disabled and ignores signals from R/W and RS. When (E) line is high, the LCD checks the state of the two control lines and responds accordingly.Read/Write (R/W)-This line determines the direction of data between the LCD and microcontroller. When it is low, data is written to the LCD. When it is high, data is read from the LCD.Register select (RS)-With the help of this line, the LCD interprets the type of data on data lines. When it is low, an instruction is being written to the LCD. When it is high, a character is being written to the LCD.

8051 Microcontroller

8051 microcontroller

Features of 8051i.     RAM – 128 Bytes (Data memory)ii.     ROM – 4Kbytes (ROM signify the on – chip program space)iii. 32 I/O lines.iv.     Serial Port – Using UART makes it simpler to interface for serial communication.v.    Two 16 bit Timer/ Countervi.     Input/output Pins – 4 Ports of 8 bits each on a single chip.vii. Harvard Architecture – It has 16 bit Address busviii.    8051 can execute 1 million one-cycle instructions per second with a clock

frequency of 12MHz.

GSM MODEM

GSM modem

GSM is the most popular standard for mobile phones in the world. It is based on TDMA (time division multiple access) technology.

We are using the SIMCOM 300, a GSM modem . This is a powerful GSM/GPRS Terminal with self-contained unit.

This has standard connector interfaces and has an integral SIM card reader. The modem has a RJ9 connector through which a speaker and microphone can be connected allowing audio calls being established, but this feature is not utilized in this project as only data transfer is needed.

Software used :-

Windows 2000 & onwards version

Embedded c

Keil software (Programming language for the communication between the Micro controller and the GSM modem)

Proteus software(simulation)

Hardware used :- AT89C51 microcontroller

Relay circuit

Relay drive

Serial communication RS 232 protocol

GSM modem

LCD

Lab setup:-Setup is in such a way that it contains proper atmosphere

and safe instrumentation.

The GSM module was properly aligned with microcontroller.

Soldering has been firmly done to reduce loose connection and short circuit.

All safety measures are taken to prevent electric hazard.

A pc with all the software

Measuring instrument

Application :-

Appliance control

Control of doors and windows shutters

Home entertainment system

Security system

Advantages:-

simple and easy to access

Accessed from remote area

Low power consumption

Taking measures to reduce the electricity bill.

portability

Future enhancement :-It can be used as

• Controlling speed of fan• Controlling room

temperature• Recording our favorite TV

program when we are outside from our home.

It can be used for security

proposes • burglary• gas detection• smoke detection

conclusion:-

This document presents a mobile controlled and user-friendly approach to the available home automation system. This system can easily be implemented because of its wireless communication standards.

Till now, we have researched the literatures for all the topics that include GSM automation system using SMS. Then we have to built the main control program, hardware and the warning system via GSM network (with SMS).

Bibliography :-Microcontroller ( theroy and application ) By Ajay V Deshmukh The tata McGraw-Hill companies

“The 8051 Microcontroller and Embedded systems” by Muhammad Ali Mazidi and Janice Gillispie Mazidi , Pearson Education

Circuitstoday.com

Edaboard.com

Vegarobokit.com

Electronics.com

Developershome.com

Seminarproject.com

THANK U

ALL …..!!