I have a PIR (passive infrared) sensor on a motion detector circuit that I am playing around with, and am looking for a way to "map" the area that this sensor reaches. Is there an inexpensive circuit to build, or something to buy (preferred) that I can do this with? I want to be able to "see" (figuratively speaking that is), the cone, how far out it goes, etc, with this circuit. Any help would be greatly appreciated!
16 years ago