gsm based home automation using avr

Project Definition / Specification GSM BASED HOME AUTOMATION USING AVR USING AVR

Confidential

ABSTRACTABSTRACT

For

GSM BASED HOME AUTOMATION USING AVRGSM BASED HOME AUTOMATION USING AVR

Project Definition / Specification GSM BASED HOME AUTOMATION USING AVR GSM BASED HOME AUTOMATION USING AVR

Confidential - 1 -


Confidential

PROJECT DEFINITION / SPECIFICATION

PROJECT TYPE

Microcontroller(ATMEGA16)hardware design with software

development (Device Driver) .

PROJECT DESCRIPTION

This Project “GSM BASED HOME AUTOMATION USING AVR

MICROCONTROLLER” is used to control the devices in home as well as in

industries, Banks, and also in Remote areas. Conventionally, wireless-controlled

appliances use RF circuits, which have the drawbacks of limited working range,

limited frequency range and limited control. Use of a mobile phone for device

control can overcome these limitations. It provides the advantages of robust

control, working range as large as the coverage area of the service provider, no

interference with other controllers and up to twelve controls.

In this project, we control home appliances either AC Device or DC

Device controlled by a mobile phone that makes a call to the mobile phone

attached to the control board. In the course of a call, if any button is pressed, a

tone corresponding to the button pressed is heard at the other end of the call.

This tone is called ‘dual-tone multiple-frequency’ (DTMF) tone. The controller

perceives this DTMF tone with the help of the phone stacked in the control board

and operate.


Confidential - 2 -


Confidential

BLOCK DIAGRAM

PROJECT OUTLINE

A brief introduction to internal architecture of microcontroller.

An over view of programming of microcontroller.

An overview on C language.

An overview on mechanical arrangement.

DTMF interfacing with microcontroller.


Confidential - 3 -

AVRController

DRIVERUNIT

DTMFDECODER

DEVICE 2

RELAYSDEVICE 3

RELAYSDEVICE 4

RELAYS

DEVICE 1


Confidential

INTERFACES USED

Serial communication used for downloading the hex code.

DTMF circuit interface.

L293D interfacing

RELAY interfacing.

SOFTWARES USED

A Cross compiler for compiling and linking the code written for ATmega16.

Serial communication software for downloading code to ATmega16.

Operating system: Windows XP.


Confidential - 4 -

gsm based home automation using avr

Documents