This article explains an upgraded smart solid-state AC switch system that uses microwave Doppler radar instead of traditional PIR sensors.

Build festive decorations using Arduino and Raspberry Pi with these five creative holiday projects and video tutorials ...

An hourglass tells you what it is in the name — a glass that you use to measure an hour of time passing by. [EDISON SCIENCE CORNER] has built a digital project that mimics such a thing, with little ...

Optical sensors are a broad class of device for detecting light intensity. This can be just a simple component for notifying when ambient light levels rise above or fall below a prescribed level, or a ...

Chris Wedel is a fan of all things tech and gadgets. Living in rural Kansas with his wife and two young boys makes finding ways to stay online tricky — not to mention making my homestead smarter.

Mycobacterium smegmatis porin A (MspA) modified with nitrilotriacetic acid achieves direct and simultaneous discrimination of rare-earth elements, suggesting the potential use of nanopore sensing in ...