These are some great DIY projects that you can do for cheap.

Most contemporary portable electronics, including laptops, smartphones and smart watches, are powered by batteries that need ...

The device, which pulls moisture from the atmosphere to form its electrolyte, could power wearable health monitors ...

A battery that "talks" does not use words—it communicates through data. Researchers at Kiel University have demonstrated how ...

This noise generator has an adjustable bandwidth and a consistent amplitude no matter what bandwidth is selected. When working on a recent Design Idea for an adjustable filter, I wanted to use an ...

Laser-based sensor developed by KAUST researchers to detect early signs of lithium-ion battery thermal runaway. Credit: KAUST / Professor Aamir Farooq A Saudi Arabian university research team has ...

Generally, LiFePO4 (LFP) batteries are quite safe and stable, but it’s still possible for something to go wrong, even ...

This project demonstrates the implementation of a compact embedded system capable of continuously monitoring GPS coordinates ...

The ESP32 keeps finding new jobs in my house.

University of California, Irvine researchers have invented a wearable, wireless, battery-free, bioelectronic sensor to monitor users' health by analyzing molecular biomarkers in human sweat. The ...

The Galaxy S26 Ultra launched in March 2026 to strong sales and warranted praise for its Privacy Display. Its camera hardware, however, was another aperture ...

Galaxy Watch 4 and Watch 4 Classic users report bad battery life and broken sensors after updating to the latest One UI 8 Watch update. There are reports of the always-on display not functioning as ...