GSM autodialer for burglar alarm

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agwill

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I have designed and built an alarm for my house and have the need for remote monitoring.

I would like to incorporate an autodialer to phone preset numbers and send sms text messages. I would like to build a GSM module but will settle for a standard phone dialer for starters.

Can anyone recommend a good book or some decent links on the subject.
 
Hi

That alarm must be acknowledged by PIC, then, in accordance with this, send a SMS using AT comand, send in serial mode to cell phone...You can order to phone send a SMS using a preset number stored in list phone, or send a text mode SMS like this

at+cmgs="+1912345678" <CR> ==> "enter" key

wait a time for phone´s answer for a ">" character, then

Alarm 1 - ON <CR>

the phone answer whit a "OK", character than you must check it to sure a sms has been sent

IN hyperterminal you should see the next:

at+cmgs="+1912345678" <CR>
>Alarm 1 - ON <CR>

here a phone´s message indicating than SMS in OK, like CMGS:OK or somethig like that...


Sorry for my bad english

Bye
 
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