Put spare boards to work with buttons, knobs, microphones, and displays.

The Arduino Emergency Assistive Device is a simple and low-cost embedded system designed to provide a local emergency alert. The system uses an Arduino UNO, push button, potentiometer, LED, buzzer, ...

There are some projects that seem at first sight to be easy, but anyone who tries them finds a whole heap of unexpected problems and turns to the off-the-shelf device. PCB antennas for example, or ...

While you may not be familiar with the term “busy board”, you’ve almost certainly seen one. It’s the sort of toy with a bunch ...

From power buttons to keyboards and touchscreens, this crossword is all about the controls we use every day. Expect familiar tech words, clever clues and a satisfying challenge that stays fun without ...

M5Stack PaperMono brings ESP32 power to your pocket. Read books, use LoRa communication, and run custom firmware on an ...

How did a man fall from a 47 storey skyscraper and survive?

Smartphones may give us an easy access to a light source, but for seeing objects at a distance or brightening a workspace in places like the attic or under the sink, you need the power and range of a ...

It even lets you randomly pick from a genre, if you're feeling indecisive.

As our beauty editor, I’m often asked by my friends about LED face masks. Do they actually work? The short answer is yes, but there are some caveats. These devices use various wavelengths, with red ...

On "Hacker News," a bulletin board where engineers and entrepreneurs from around the world gather, technical news and ...

Advances in technology have given us more powerful and versatile scripting languages, such as PowerShell and JavaScript. These languages offer broader capabilities and are better suited for modern web ...