GSM call alarm is a device that will call a destination number via Siemens or Ericsson GSM phone (19200 bps RS232). It has 1 sensor input and another input - state (stanje). If state input is = 0V than the device is "active" and it monitors the sensor input. The device is deactivated when state pin is connected to Vcc (+). Sensor input is triggered by 0V.
In project file for download, you will find a JPG image that describes how to program the number you whish to be called when alarm occures. I hope you will find some use for this device, as I did - for my car.
Author (sent by): Trax
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Date: 20-02-2005
Lokalna verzija ove stranice: GSM call alarm
Siemens C45 SHOULD work great! Steal it from your aunt :) And C25 should NOT work though.
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ok i will try and on ebay.. hehe thanx... siemens are hard to find in my hometown than sony
erc.. but knew lately that my girlfriend has a C25, and my Aunt has a C45. are they compatible
also? hope so... hehehe THANK YOU VERY MUCH trax! You're a blessing...
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Well, what I would really advise you to do is to get an old Siemens S25 or C35/M35 from eBay,
or you can try that 4,91* crystal and get back with results :)
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trax, may i ask again? There is no 5Mhz Crystal Oscillator available in my hometown.. i've
search every electronic shops and no luck. they have only 4, 4.5, 4.9152, 8 , 10, and 16 Mhz
Crystal Oscillators.
Is it ok if I use 4.9152 Mhz with the Sony Ericsson phone? what can you advise?
Thanx trax...
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Ok I'll Try....Thanx trax... I very much appreciate ur help... Thank You Very Much...
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You should be able to use any model with internal modem such as Ericsson T28 for example. I
really can't say, you must try it yourself!
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may i ask, if what particular Sony ericsson phone is compatible with this project... I badly
needed ur help.. thank you very much....
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What about Sony Ercsson (K750i)? Did someone already tray with Sony Ericsson? Can i expect
positive result? Thank you in advance!
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If you want to use Ericsson phone instead of Siemens, you must use 5 MHz crystal instead of 10
MHz !
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