The presented schematic shows how to build a simple PIR motion sensor. PIR sensors allow motion sensing, it is almost always used to detect whether someone has moved in or out of the sensors range.

Motion sensing is the detection of the change in position of an object relative to its surroundings or vice versa. There are many kinds of motion detector methods: infrared, optics, radio frequency, ...

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 ...

Motion detectors are widely known for their role in home security systems, but their usefulness extends far beyond guarding doors and windows. These compact devices can automate daily tasks, enhance ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. You’ve probably seen them—sensors watching from the corners of ...

A brilliant wireless way to detect presence, the Aqara Presence Multi-Sensor FP300 expands what you can do with routines.

I thought some of these would hold up better ...