[sci.electronics] Motion Sensor

tmiller@BINAH.CC.BRANDEIS.EDU (10/24/90)

Recently someone was asking where they could obtain a cheap motion
sensor.  One source was an outdoor light which I find kind of messy
for little projects.  I found a kit at HeathKit for $25 which comes with
the sensor, a small circuit board, and works from a 9V battery.  

Of course you have to assemble it, but it comes with all the parts
and diagrams as well as a nice description of how it works.  The
pre-drilled and printed circuit board is 4" X 3" and the sensor mounts
directly on it.
							Todd M. Miller