There’s no shortage of ESP32 development boards out there, with many of them offering some “killer app” feature which may or may not align with whatever it is you’re trying to do. But if you’ve got a ...
A new motion sensor incorporates micromachined thermal transistors to facilitate human presence and motion detection in security systems, home automation equipment, and Internet of Things (IoT) ...
Safehome.org on MSN

How Does a Motion Detector Work?

First developed for World War II, motion detectors have come a long way from the radar that pilots used way back then.