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
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
Download counter: 16,537
Rate: 

(2.89, votes 895)
Date: 20-02-2005
Lokalna verzija ove stranice: GSM call alarm
Tags: alarm, call, gsm, siemens. +add your tag
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
sensor and on / off How to input to be connected.
IP: n/a
I don't know if it will work with A60 or A70, you must try it!
IP: n/a
senzor i za uključivanje / isključivanje Kako će veze. hvala.
IP: n/a
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
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
If the phone keeps loosing network coverage, try putting a resistor of 4k7 on GSM RX line!
IP: n/a
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
Please tell me where I can find out a schematic diagram for GSM alarm.
Sincerelly your Petar
IP: 88.85.120.140
switch fm antenna sensor radio senzor detektor counter alarm audio tv gsm svjetlo antena prijemnik light receiver pic detector mhz bubica predajnik sms prekidac amplifier bug pojacalo telefon brava transmitter
There are currently 20 visitors online. Check them out!