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From: cmaccarl@polyslo.CalPoly.EDU (C. A. MacCarley)
Newsgroups: sci.electronics
Subject: Passive IR motion detector circuit
Message-ID: <1990Jan4.074355.22768@polyslo.CalPoly.EDU>
Date: 4 Jan 90 07:43:55 GMT
Reply-To: cmaccarl@polyslo.CalPoly.EDU (C. A. MacCarley)
Organization: EL/EE Dept. Cal Poly, SLO
Lines: 6

I'm looking for info on circuits used for passive IR motion detection,
like the kind used in automatic security lights.  I'd bet that a 
schematic for this kind of thing has turned up in one of the electronics
mags.  Any references?  Thanks.

cam