Alan,

> Looking thru all my archives....can't seem to find it....but some time ago
(year maybe) someone had posted some info on inexpensive but good
PIR sensors.  Anyone recall that reference

I don't, but you can try some of these links.  The sensor interface is
relatively simple; basically just an amp and a low pass filter.

http://www.nicera.co.jp/pro/ip/pdf/pdfip001.pdf
http://www.nicera.co.jp/pro/ip/html_e/ipe.htm
http://www.archilochus.netfirms.com/images/sensch.gif
http://www.lsicsi.com/pdfs/LS6501LP.pdf#search='LS6501LP'
http://www.mos.co.za/pdf/data/m2012a.pdf#search='M2012B'

I just noticed that www.allelectronics.com is carrying a Nicera
detector (catalog# IRD-10) for $3.95.

You could also try www.mpja.com. When I last looked, they
carried both the RE200B part as well as a module with lens
for about $10.00.  You will probably want the lens as well as the part.

Ken

klumia@adelphia.net

----- Original Message ----- 
From: "alan smith" <micro_eng2@yahoo.com>
To: "Microcontroller discussion list - Public." <piclist@mit.edu>
Sent: Tuesday, July 12, 2005 3:55 PM
Subject: [EE] PIR sensor (looking)


> Looking thru all my archives....can't seem to find it....but some time
ago (year maybe) someone had posted some info on inexpensive
but good PIR sensors.  Anyone recall that reference?
>
>
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