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Telephone dialer

 
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hassan1980



Joined: 15 Jan 2005
Posts: 210
Helped: 3


Post22 Jun 2006 17:20   Telephone dialer

Did anyone build a standalone telephone dialer for burglar alarm without using computer.
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edsoncan



Joined: 02 Mar 2005
Posts: 9
Helped: 1


Post23 Jun 2006 16:37   Re: Telephone dialer

I builded with HT9200(Holtek) and a QY4(freescale) - it's very easy.
Edson

Added after 3 hours 5 minutes:

Hi Hassan
This schematic was make by tango II dos, because the project is very old.
Edson
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rosarioantony



Joined: 04 Aug 2005
Posts: 68
Helped: 5


Post24 Jun 2006 17:53   Re: Telephone dialer

u can do it using DTMF transceiver IC CM8880 or CM8888
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mos



Joined: 16 Sep 2006
Posts: 14


Post19 Sep 2006 23:10   Telephone dialer

see this shematic

<img src="http://images.elektroda.net/66_1158699455.gif">

Added after 49 seconds:



Added after 5 minutes:

see this site . too.

http://users.tpg.com.au/users/talking/DialAlarm-1-Page1.html
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sensor_ua



Joined: 11 Oct 2006
Posts: 19
Helped: 1


Post11 Oct 2006 19:08   Telephone dialer

Please - http://assets.zarlink.com/AN/msan_108.pdf
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sabeti_1990



Joined: 16 Nov 2007
Posts: 65
Helped: 4


Post05 Jul 2008 8:56   Re: Telephone dialer

in which way u vant this
handle or with microcontroler
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