[PD] PIR sensors

[Derek Holzer]

The home light switches have two parts, usually two separate boards. One 
is the sensor, which in my experience even has the inputs and outputs 
labeled on the sensor board (or at worse on the relay board), and the 
other is a relay to switch the mains voltage to the light on and off. 
The sensor board is self sufficient, runs on +5 or +9 volts probably, 
while the relay board is designed to have 110/220 VAC running through 
it. Easily separated with wire snips. I've never seen anything easier to 
hack in my life. Hook it up to power and ground, point it at something 
and it gives + volts or ground out the output wire. You could power it 
from an Arduino board and run the output back to the input, and from 
there do just about anything with it.

best,
d.

Ben Carney wrote:
> Not that i know much about sensors or electronics, but i believe this 
> would be a bit harder to implement, the modules that come out of  home 
> lights have a set of resistors and other small bit built into a small 
> circuit.
> 
> that is a really good price, however!
> 
> On Wed, Apr 9, 2008 at 10:38 AM, Martin Peach <martin.peach at sympatico.ca 
> <mailto:martin.peach at sympatico.ca>> wrote:
> 
>     You can also get the sensor on its own here:
>     http://www.electronics123.com/s.nl/it.A/id.101/.f
> 
>     Martin
> 
> 
> 
>         From: "Ben Carney" <bfcarney at gmail.com <mailto:bfcarney at gmail.com>>
>         To: jaime.oliver2 at gmail.com <mailto:jaime.oliver2 at gmail.com>,
>         pd-list at iem.at <mailto:pd-list at iem.at>
>         Subject: Re: [PD] PIR sensors
>         Date: Wed, 9 Apr 2008 10:25:00 -0500
> 
> 
>         hello there jaime,
> 
>           I have just recently bought 15 I.R. sensors for an
>         installaition I  am
>         working on.
>           I found two for around the $5-$6 range
> 
> 
> 
>         http://www.dealextreme.com/details.dx/sku.7330
> 
>         http://www.dealextreme.com/details.dx/sku.10082
> 
>         i went with the first link because it is a rabbit, of course.
> 
>         shouyld get them in a week or two.
> 
>         i know a bit about hackingt them(not too hard to do it seems)
> 
>         let me know how this project comes along as we might end up
>         being a valuable
>         resource to one another.
> 
>         --
> 
>         Ben C.
> 
> 
> 
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> 
> 
> 
> 
> -- 
> 
> Ben C.
> 
> 
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-- 
derek holzer ::: http://www.umatic.nl ::: http://blog.myspace.com/macumbista
---Oblique Strategy # 50:
"Distort time"