You could try one of these, it's cheaper and already does what you want: http://www.hvwtech.com/products_view.asp?ProductID=270 You can also get just the PIR detector (it looks like a transistor with a window on top) and wire it up with a couple of op-amps to have an analog sensor.
Martin
Jaime Oliver wrote:
Hello all,
I was wondering if any of you had any experience hacking motion detectors, the kind that is used in stores to make a sound when you enter or in lights that turn on when you pass by... the key of course is that it should have a digital (on/off spirit). So far i have understood that they are called 'PIR motion switch'. I am looking to not do so much work (building and testing a sensor), but to get one i can hack & hook to a board and get 1's and 0's so any comment is great and I'll probably need 10-12 so the cheapest the better (they seem to be in a lot of lights so they should be cheap!!)
I am looking for something similar to this:
http://www.amazon.com/Ziotek-Sensor-Plug/dp/B000BSLTNI/ref=sr_1_19?ie=UTF8&a... http://www.amazon.com/Ziotek-Sensor-Plug/dp/B000BSLTNI/ref=sr_1_19?ie=UTF8&s=hi&qid=1207729271&sr=1-19
i suppose these should work too:
http://cgi.ebay.com/MOTION-DETECTOR-SENSOR-ALARM-CHIME-CUSTOMER-ALERT-NEW_W0...
http://www.thewholesalediscountstore.com/Shop/Control/Product/fp/SFV/32461/v...
hope you are all doing well,
best,
Jaime
-- Jaime E Oliver LR
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