/Projects/GSM call alarm

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.

pica

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.

picb

Author (sent by): Trax

Download counter: 28,870

Rating: (2.94, votes 6136)

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Date: 20-02-2005

Lokalna verzija ove stranice: GSM call alarm

501_gsm_call_alarm_c.rar

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comment [19]

  • From trax on 08-02-2009 at 10:56:49

I guess you will not need more than 30mA but I am not sure...
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comment [18]

  • From on 08-02-2009 at 06:24:19

ok trax, i will try it.. hehe thank you very much... (= May I ask if how much milliamperes do i need for the 12V input? thanx again...(=
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comment [17]

  • From trax on 07-02-2009 at 10:24:51

Well I guess you will have to test it out :)
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comment [16]

  • From on 07-02-2009 at 06:09:58

ei trax, my aunt will not give me the C45... ahaha i have found one but it is not on the list.. A Siemens MC60.. :(
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comment [15]

  • From trax on 07-02-2009 at 04:38:33

Assuming that all sensors give GND (0V) on their output when active, you can connect them all into one point with 1N4007 diodes! So, you will need 6 diodes for that, and that's it. Here is the simplest PIC16F84 programmer hardware: http://www.elektronika.ba/111/funky-pic16f84-programmer/
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comment [14]

Thanks a lot for your attention it is ok now, but where to find a PIC programmer hardware,or i have to ask to any shops or services.Yes i have car alarm, but, can i try to collect all 6 sensors form car alarm to some electrical circuit with inputs and to have one output for gsm call alarm,you know how,OR CIRCUIT, to activate output if any of them is activate.If you know some scheme for that? Thanks again i will go in shop today to by all parts for this device. Have a nice day.Bay.
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comment [13]

  • From trax on 06-02-2009 at 18:00:09

This device should be connected to existing car-alarms sensors, such as shock-sensor. You enter your number a second before you burn the HEX file into PIC16F84 microcontroller. You can see how to do that in "uputstvo.jpg" file, found in RAR file for download. To burn the HEX program into the PIC you need IC-Prog software and PIC programmer hardware. You don't connect this alarm to RS232 port, you connect it to the phone's TX, RX and GND pins. Really simple...
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comment [12]

Hi i think this is good device, my car is 6 time crashed on parking, this is good solution for me, but i have uncleared thinks?What is sensor, and how to enter my number to PIC16F84A-20/P and how to program.Do i have to make something to siemens phones or what, and how to connect gsm call alarm to RS232 port and which software do i use to program PIC16F84A-20/P.Thanks a lot. Bye
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comment [11]

  • From on 04-02-2009 at 18:03:07

wow... ok trax.. thank you very much for the great info! and i will forcefully steal it from aunt..hahaha Thank You Very Much for Your help... God Bless You,,, (:
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comment [10]

  • From trax on 04-02-2009 at 17:40:46

Here is a list of Siemens phones that should work: A60, C35, C45, C55, C60, S25, S55, SL55, ME45, ME45, M50, S45, CF62, and Ericsson phones: T10s, T18, T28 but they will need 5 MHz crystal.
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