The Arduino ecosystem is an amazing learning tool, but even those of us who love it admit that even the simplified C Arduino ...

Thus, they entered a heart rate sensor to our 2025 One Hertz Challenge! The build is based around a Wemos D1 mini, a ESP8266 development board.

Researchers report that the colorful patterns in their inexpensive and durable paper-based sensor array changed in the presence of poisonous gases.

Fast-forward a decade, and the world of 3D printing has evolved tremendously. Printers are faster, smarter, and more refined.

The city is racing to put up 277 sensors. Once installed, Chicago will have the most high-quality air monitors in the country, a model that rivals only London, which has more than 400.

I've just come across a no-name non-contact, high-precision 80 GHz mmWave radar sensor for liquid level detection with a 40m ...

Color-changing sensors can monitor health in both houseplants and crops, helping small farms respond to stress by Erin Kayata, Northeastern University edited by Lisa Lock, reviewed by Robert Egan ...

Trump’s Ukraine Pledge: Day One Turns Into 50-Day Ultimatum For Putin ...

Not all poisonous gases have a smell or a color. But a tiny grid of pastel- and candy-colored squares that effectively "sniffs" out hazardous chemicals in the air such as chlorosarin—a highly ...

There are a bunch of little tricks I need to do in order to get through my day without sight. This is just one of them.

The first step is to get the brightness right across the image. Here the shadows are a bit too dark so needed brightening.

Meet “Hidden Gem,” a smoky jade hue that’s equal parts subdued and sophisticated and is Behr’s newly announced 2026 Color of the Year. Touted as the “perfect neutral,” this sultry blue ...