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8051 interfacing with GPRS modem

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Moderators: Ajay, Junied , abbas1707, Arun Kumar V, pdi33, Shailesh NAYAK, ۞ TPS ۞, shyam, sashijoseph

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Divyang

Thu Apr 03 2008, 06:33AM

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Hi all,

Thanks for taking intereset in my issue.

I did one project with GSM modem interfacing with 8051 microcontroller. I successfully completed send and receive information through SMS. But the issue is the time lag. SMS is not that fast so I thought of switching form GSM to GPRS connectivity.

Now issue is i don't have good knowledge of TCP/IP and don't know how to send string to GPRS modem & how to receive and interprit the GPRS string..

Can anyone help me to come out of the issue...., please advise me for some good reading material for GPRS communication, TCP/IP etc (if at all required for this project )

Thanks you all in advance.

Have good day.

Divyang

Ajay

Thu Apr 03 2008, 09:08AM

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can you please quote which modem you are using?

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Divyang

Fri Apr 04 2008, 01:32AM

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Thanks Ajay for your interest.

My modem is wavecom which supports GPRS also. I am not very sure of the model number as its assembled by a local vender in Mumbai, India. Document given with the modem shows that it supports GPRS too. My sms application working fine on it.

Again thanks for your time and efforts.

Divyang

Ajay

Fri Apr 04 2008, 11:18AM

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then you must take a look at the technical document provided.
I will tell shyam to assist you in this matter. He has been working on GPRS modems. He is little busy with his work so couldnt come online.
Please wait till he come and help you out.

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wavecom gprs gsm

shyam

Fri Apr 04 2008, 08:21PM

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if u r using wavecom!!!
ask your supplier for openAt developer suit..
it is really very easy to send data via GPRS using wavecom and OpenAt.
which company do u work for???

lProgress is not made by early risers or hard workers, but by LAZY people, trying to find easier ways to do the same........

wavecom gprs gsm

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Divyang

Divyang

Tue Apr 08 2008, 05:18AM

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Thanks Ajay & Shyam,

At present I am working for TCS.
My exact issue is that I don't want point to point connection because if more then one remot unit tries to contact to a master unit then they have to be in queue. Instead if they connect to a common interetnet site then I guess no queue required to log online data. "Many data packets can come from many sources at a time and no queue required" this is what I believe, why I want to switch to GPRS.

The question is "Whether my belief is true or not?", "Am I going on correct way for my requirement?"

wavecom gprs gsm

shyam

Tue Apr 08 2008, 06:12AM

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TCS !! i guessed so!!!

ok which module are u using i mean q24plus/q2686 ????

if u are using the OPEN-AT development suit then u can use the WIP functionality ..

once u start reading that document you can procceed ahead!!

lProgress is not made by early risers or hard workers, but by LAZY people, trying to find easier ways to do the same........

shyam

Tue Apr 08 2008, 07:04AM

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where is shailesh !!!!

he is the most appropriate guy to answer ur querries!!!

you can also consider visiting the Wavecom development forum managed by the wavecom people themselves!!

lProgress is not made by early risers or hard workers, but by LAZY people, trying to find easier ways to do the same........

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Divyang

Divyang

Thu Apr 10 2008, 01:46AM

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Thanks Shyam,

At present I don't know which module or model of wavecom will be used in the project. I am preparing project plan for the same. If you have any suggestion then please convey..

shyam

Thu Apr 10 2008, 02:38AM

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it all depends on your application ..

if you want to make it cost effective plus u need less control pins go for q24plus... (can be developed on a 2 sided PCB).. it has in built ARM7 proccessor.
else if u want more controll pins and a better proccessor ARM-9 go for q2686
remember u'll need a 4 -layered pcb plus a lot more money...

u people neednot abt money i guess