Building an Arduino speed detector using IR technology to measure the speed of a moving object is much more cost-effective, ...

But the idea of, say, every Philips Hue light bulb in your home turning into a motion sensor overnight, making it simple to automate control of your lights without sticking white plastic sensors ...

A demo of Ambient Sensing for Zigbee lights shows how smart lights could soon be used as motion sensors with just a firmware update and no additional hardware. Philips Hue products may soon ...

Matter may be the big new thing in the smart home arena, but the old Zigbee protocol still has some tricks up its sleeves, and this one’s pretty cool: The ability to transform Zigbee devices ...

2025 has regrettably already chalked up its first confirmed business closure in the bike trade, with UK manufacturer Light & Motion announcing the move after 35 years in business. In a message to ...

We’re still not sure exactly how [connornishijima]’s motion detector works, though many readers offered plausible explanations in the comments the last time we covered it. It works well enough ...