It is likely that many of us will at some time have experimented with motion detectors. Our Arduinos, Raspberry Pis, Beaglebones or whatever will have been hooked up to ultrasonic or PIR boards which ...

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 ...

A new sensor has been developed by engineers that is made of a special rubber layer between two strips of copper that act like radio antennas; the rubber is an insulator. Pressure squeezes the ...

Engineered with a polarization filter that allows only light received from a specially designed reflector to be recognized by the detector, the Series OPDM 12 retro-reflective laser sensors eliminate ...