DTMF relay

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r3dlin3

Member - Posts: 9

Joined: November 22, 2005

Location: Canada

Posted: December 17, 2005 at 7:41 AM / IP Logged

Hey guys, I got a question and I hope you can answer it.

A long time ago I viewed on someone’s blog how they build a DTMF relay that they hooked up to there phone to do a few things.

I’m wondering if anyone knows how to build a DTMF relay circuit?

My reason for this is that I have a spare phone, actually my work phone that sits in my car 24/7 anyhow. If I could get this relay I could call my work phone (it’s got a phone filter to auto answer on for my personal phone. And forward all other incoming to VM or my personal phone) and if I hit any number it would trigger a relay to remote start, roll up windows, arm, disarm etc.

Any help with this would be great.

thanx

geepherder

Platinum - Posts: 3,668

This member consistently provides reliable information

Joined: October 27, 2003

Posted: December 17, 2005 at 8:34 AM / IP Logged

I found this on Google:

http://www.boondog.com/%5Ctutorials%5Cdtmf%5Cdtmf.htm

My ex once told me I have a perfect face for radio.

r3dlin3

Member - Posts: 9

Joined: November 22, 2005

Location: Canada

Posted: December 17, 2005 at 8:46 AM / IP Logged

thanx :)

techguy688

Copper - Posts: 55

Joined: November 07, 2004

Location: United States

Posted: December 26, 2005 at 3:48 PM / IP Logged

This is a DTMF board that will work.

http://www.dschmidt.com/dtmf.html

DTMF Activated Relay (part # DTMFRLYB-T)

Just because you've done something for a long time doesn't mean you're any good at it.

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DTMF relay

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