NOPE9 wrote:
> 
> Hey Umar
> 
> Very nice project.  How did you learn about the T290i being able to  
> supply text messages via a serial link ?
> Olin would be interested to see that async serial is still being used.
> I googled for the T290i and I cannot find any for sale in the USA.  Is  
> the T290i obsolete ?  Or limited to countries
> other than the USA ?   I would like to do this if I can find a phone  
> that has similar capabilities.
> 
> Gus
> 
>>
>>
>> On Oct 9, 2009, at 11:14 AM, Umar Arshad wrote:
>>
>>
>> Hello guys,
>> I've built this GSM security system as my semester project using T290i
>> mobile and controlled my car using it. Please leave your comments  
>> about it.
>> If any one needs help in implementing such a system, I can help.
>>
>> Some of the functions it can perform are:
>> * start and stop the engine (without using the key)
>> * stop the engine if somebody starts it with a key ( by cutting off
>> ignition)
>> * lock and unlock the doors
>> * send a text message to the owner if an intruder is detected (by  
>> monitoring
>> the doors)
>> * switch the heater/air conditioner on and off
>>
>> You can see the complete details, pictures and download project  
>> files and
>> source code from my website.
>> http://arshad-umar.blogspot.com/2009/09/gsm-vehicle-control-and-security-using.html
>> http://arshad-umar.blogspot.com/2009/09/gsm-vehicle-control-and-security-using.html
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> 
Thanks for the comments. Yeah the T290 is quite obsolete, I had one some
time back. I bought its serial cable for retreiving contacts etc, thats how
I found that one could control most of its functions by sending AT
commands(see the manual on my website) via hyperterminal. So I thought, why
not try this stuff with a microcontroller and it worked. I intercepted
hyperterminal's serial communication using a packet sniffer software and
found out how it talked to the phone, and mimiced it using a
microcontroller.
The phone and its serial cable are available at ebay.
regards
Umar Arshad.
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