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Author Topic: GSM modem application  (Read 3766 times)
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arash_tah
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« on: August 18, 2008, 10:14:44 10:14 »

Hi every body I am going to design remote control and monitoring system using gsm modem and embedded system.

I don't know how to start and how to do that
Could any one give an idea or upload a project in this area?
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lillbear
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« Reply #1 on: August 18, 2008, 11:12:41 11:12 »

Hi maybe you shoud use search... suprise yourself  Grin
but for a start here is one link http://www.sonsivri.com/forum/index.php?topic=14154.0

yours
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arash_tah
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« Reply #2 on: August 18, 2008, 04:27:20 16:27 »

Tanx lillbear
I have seen that. but I want a project based on GSM modem module not mobile phone
they are better and more reliable with industrial applications
focus on this area and give some hint in this field
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Silent_Thunder
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« Reply #3 on: August 21, 2008, 08:58:01 08:58 »

Hi
using GSM modem is easy, all of them use serial interface with customizable baud rate, so all u have to do is designing your hardware with serial interface.
and all u have to learn is the AT commands that corespond to the modem u gonna use
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falcon _bd
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« Reply #4 on: August 22, 2008, 01:19:27 01:19 »

I already complete my final project same as your idea. my project was "Energy meter reading and control device through sms. " I used ericsson module GM 22, pic 16f876, and pic basic . GM22 is very old model. you can use benq M32,  sim340, telit or nokia 12i.
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arash_tah
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« Reply #5 on: August 24, 2008, 06:12:54 06:12 »

tanx silent_thuder
tanx falcon_bd
I want some details about AT command and their usage I am very new in this area
dear falcom I am sure u are a very clever and talented student .I would be gretful if u share your experiance of using gsm modem in detail
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Silent_Thunder
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« Reply #6 on: August 24, 2008, 01:08:08 13:08 »

hi arash_tah 
The following site contains all the basic AT commands and their explaination
http://modemhelp.net/basicatcommand.shtml
but when you decide what modem you gonna use, you have to revise the commands because there is some differances between the standerd command set and every manufacturer's command set.
these commands are sent in ascii mode over the serial connection.

Regards
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arash_tah
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« Reply #7 on: August 26, 2008, 11:26:56 11:26 »

Hi Silent_Thunder "Nice ID"
Tanx so much for your Messages in reply to my questions you are realy helpful. I will ask u some other questions in future and I would be gretful if u answer me.
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Codeman
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« Reply #8 on: August 26, 2008, 03:11:19 15:11 »

Hi,

I have some experience with GSM applications. When you choose your modem take care. When I first buy one, because it was cheaper I dind't buy it with TCP/IP stack. Later I need to update a remote website using a micro and it was very difficult (I dind't do it at all). For a few extra bucks be sure to buy one with embedded TCP/IP stack.

Good luck

Joaquim
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sohel
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« Reply #9 on: August 26, 2008, 03:22:45 15:22 »

dear falcom I am sure u are a very clever and talented student .I would be gretful if u share your experiance of using gsm modem in detail

the art of PBP and proton. u may find here a lot of sample with pbp or proton. try ur self
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A Thousand Miles Journey Start With a Single Step<br />http://www.youtube.com/user/masud58
arash_tah
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« Reply #10 on: August 27, 2008, 09:04:55 09:04 »

HI dear sohel
Sorry I don't understand
do U mentione me to visit a web site?
if so please give the address
Do u have any experiance of using gsm modem ?
I would be greatful if u share them with me
Tanx in advanced
best 4 u

Posted on: August 27, 2008, 08:58:44 08:58 - Automerged

Tanx Codeman for your recommendation . I will be careful when I want to buy a gsm modem u are very good boy because u share  your valuable experiance with me.
best regard
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Silent_Thunder
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« Reply #11 on: August 27, 2008, 09:17:32 09:17 »

Hi arash_tah
It will be my pleasure to answer all ur questions, just start working and if u face any problem don't hasitate to ask, we are all here to help each other as we could

and dear sohel, what ur post mean, is it relative to our subject in here, or it is just to increase ur post count HuhHuh?? no offence.

Regards All
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sohel
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« Reply #12 on: August 27, 2008, 10:55:36 10:55 »

u should asked for topology not for user code. here some sample for u .  and also mind ur coment.
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