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 ...

Reportedly the first RF power detector with on-chip programmable threshold detection and a four-output sequencer, the RTG9001 has an input frequency range from 0.1 to 2.5 GHz with a dynamic range of ...

Lightning storm detectors have been around for a surprisingly long time. The early designs consisted of a pair of metal bells and a pendulum. When there was a charge applied, for example by connecting ...