comment [65]
- From bzirapli on 01-03-2010 at 15:15:00
sensor and on / off How to input to be connected.
IP: n/a
/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.
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
Tags: alarm, call, gsm, siemens. +add your tag
501_gsm_call_alarm_c.rar
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comment [66]
- From trax on 01-03-2010 at 15:27:04
Connect it to a sensor you are planing on using. "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."
IP: n/a
comment [64]
- From trax on 01-03-2010 at 15:07:01
I don't know if it will work with A60 or A70, you must try it!
IP: n/a
comment [63]
- From bzirapli on 01-03-2010 at 14:52:42
senzor i za uključivanje / isključivanje Kako će veze. hvala.
IP: n/a
comment [62]
- From higsound on 12-02-2010 at 14:13:14
Thank you very much, it just stars work after adding the resistor of 4k7.The project is very
useful. Thanks a lot.
IP: n/a
comment [61]
- From trax on 12-02-2010 at 13:14:10
Actually, download the circuit from here http://www.elektronika.ba/666/tiny-gsm-alarm-system/
and see how GSM is connected to PIC (see the resistors and their values).
IP: n/a
comment [60]
- From trax on 12-02-2010 at 13:13:01
If the phone keeps loosing network coverage, try putting a resistor of 4k7 on GSM RX line!
IP: n/a
comment [59]
- From higsound on 12-02-2010 at 12:09:42
hi, Trax. Thanks you for the great idea, but I have a problem with the device.
I make everything exactly like it you write it, but the problem is the phone coverage - the
telephone is searching for network cell at every 15 sec. If something hapenned during this
time, the phone /seimens C35i/ will not be ably to dial my nomber to notice me about alert. I
used the newest version of software /hex fail- dailing only once/. Any idea what can i do to
make it work?
IP: n/a
comment [57]
- From Petar on 20-10-2009 at 12:30:40
Please tell me where I can find out a schematic diagram for GSM alarm.
Sincerelly your Petar
IP: 88.85.120.140
