Do you have a need to photographically document the doings of warm-blooded animals? If so, a game camera from the nearest hunting supplier is probably your best bet. But if you don’t need the ...

It’s really hard to overstate how awesome ESP8266 development boards like the Wemos D1 Mini really are. For literally a couple of dollars you can get a decently powerful Wi-Fi enabled microcontroller ...

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.

Looks like this is the best forum for this, but if it's not, I'm happy to move it...<BR><BR>I'd like to put a motion sensor in a basement, and all I need to do is record if it's triggered overnight.

Moderately priced Passive Infrared PIR Sensor modules are now widely available. By using these readymade and pre-configured PIR sensors, even an average electronics hobbyist can construct his/her own ...

CNET’s expert staff reviews and rates dozens of new products and services each month, building on more than a quarter century of expertise. Editors' note, Dec 14: You can find all of our coverage ...