A gangly-looking motion detector floodlight is fine for scaring off a backyard intruder, but it doesn't look good on your ...

Arduino Motion Detection With A Bit Of Wire. 55 Comments . by: Jenny List. May 23, 2016. Title: ... This makes a DIY omnidirectional motion detection sensor cheaper than a PIR. Report comment. Reply.

We’re still not sure exactly how [connornishijima]’s motion detector works, though many readers offered plausible explanations in the comments the last time we covered it. It works well… ...