Many people have a motion detector light mounted outside of their home. The early models didn’t have any settings — with no way to adjust the sensitivity or how long the light would stay on after it ...

Is there a spot around the outside of your home that is just a little dark? Do you go there and wish that you had a motion detector light that would come on when you walked outside and then went off?

Dear Ken: I have a light switch that’s behind the bedroom door when you open it. Could I rewire it to be outside of this room so you turn it on before you walk in? Jack You could, but why not try a ...

We have a motion detector light in our backyard that comes on, hopefully, when motion is detected. It is mostly activated by squirrels and raccoons, but as the days are growing shorter, our dogs also ...

Let me introduce another simple microcontroller-based do-it-yourself circuit that detects motion and excites a light source in a flash. The “snooper” here is an ordinary passive infrared (PIR) motion ...