The motion sensor switch circuit can automatically turn on a water sprinkler but you can easily use it as a motion sensor light switch or motion activated alarm too. Before beginning the construction ...

Gesture-controlled gadgets were all the rage at CES back in January. I’m still not convinced it’s a good way to change TV channels, but it can’t hurt to learn how to program for a motion sensor.

Last year, I took a look at some mostly low-cost passive infrared (PIR) motion sensor modules. Then recently, I became more aware of cheap microwave radar motion sensor modules. The popular version of ...

is The Verge’s executive editor. He has covered tech, policy, and online creators for over a decade. Philips Hue has a new accessory that’ll make it even easier to automate the lighting in your home: ...