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by jrlambs
Tue Feb 04, 2014 9:42 pm
Forum: Automation, sensing and robotics
Topic: Home Alarm System Retrofit - "Part Deux"
Replies: 26
Views: 27510

Re: Home Alarm System Retrofit - "Part Deux"

Oh, the sensor's that I have that I'm trying to wire up to the pi are Honeywell DT-720B's.

the C/NC wires are listed as "Alarm 500 mA 30 VDC"
the Power wires are listed as "Power 25 mA 7.5-16 VDC"
by jrlambs
Tue Feb 04, 2014 2:52 am
Forum: Automation, sensing and robotics
Topic: Home Alarm System Retrofit - "Part Deux"
Replies: 26
Views: 27510

Re: Home Alarm System Retrofit - "Part Deux"

I've been working on something like this also.. I've wired up the 4 door sensors just fine, but I also have 2 motion sensors.. each have 4 wires.. Red and Black (For Power) and a yellow and green (marked "N.C." and "Common". The power wires I'll probably have to get from an external power source.. p...

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