Read full article: Lost your key? Swap out the lock! Read full article: Florida investigators look into viral video of people in airboat firing on alligator Security screeners at the airport are being ...

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 ...

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 ...