Let's use Arduino to make a light that turns on automatically only when someone approaches and turns off after a while.This time, we will use a PIR motion sensor that detects changes in infrared rays ...

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 ...

I recently had to build an infrared close proximity sensor that could tell if something was dropped in a parcel delivery drop box. After some searching, I ended up using a microcontroller and a piece ...

We’re in the middle of remodeling the exterior of our house. It had wood painted wood siding and it’s currently (I can hear the contractors hammering right now…) getting vinyl siding. As luck would ...