SMS remote control

Hello everyone.

I am planning to make my final project about Home Automation system. The idea is by sending a specific SMS message with any mobile phone i can control features at home such as light, Ac and windows.
The format of the message must be only '1' or '0'. '1' to enable, or '0' to disable the device. The message must have only 8 numbers, '1' or '0' .
A mobile must be connected to the circuit as shown in the attachment file. I am thinking to use 8051 microcontroller and I will use assembly language in programming.
I need help on how can I start the code I mean the flow of the code ?? Also any guidelines should I follow when starting writing the code??
I really need help in my initial step with the code. I will be very appreciated and grateful to you

fliz i guess there is already a thread going on this discussion why dont u join that?

I joined the discussion but you told me to create my own thread to ask you ..

Any way i really need help, i don't know how to start my code:(

The format of the message must be only '1' or '0'. '1' to enable, or '0' to disable the device. The message must have only 8 numbers, '1' or '0' .
A mobile must be connected to the circuit as shown in the attachment file.

Fliz

There are a lot of "musts" there.
Are these limitations you have been given ?

The basic flow chart would be something like...


Wait for message SMS message to arrive.
When it does, move it to the 8051.
Parse the message to identify which item to switch, and whether on or off.
switch item on or off.
go back to waiting.

Basically four major routines.

hello how to move that mess to 8051 micro controller plz do respond..........
and wat is the format of the mess that was received and can it be red by 8051 micro controller...........

you need to send AT Commands to phone

to read sms send AT+CMGR=index is location of sms to read.if its 1 then command will be
AT+CMGR=1

you can fix this location. after reading sms just delete sms using
AT+CMGD=1

this way you new sms will always come at location 1. this will simplify your work too.

I have already designed the device.
But i am not using SMS,istead of using DTMF

best wishes,
matthew.

@matthew
hey why dont you share your work with world??
be admired for your work, dont let it go waste in closet

Hi ajay,
Iam happy to share my designs using mobile phone.
i checked it, it is working good.


thanks,
matthew.

where is the hex file of this project.?