From your very first blinking LED to dazzling multi-color sequences, Arduino makes it easy to bring light to life. With just a board, a few LEDs, and some code, you can experiment with patterns, ...

Cheap and cheerful.

Press its flashlight against a black trash bag, wait for the plastic to melt, and post the result like Samsung just shipped a pocket-sized laser cutter. Viral videos showing Samsung phones burning ...

WiFi 6, Bluetooth 5.x LE, and an 802.15.4 radio for Zigbee, Thread, and Matter, as well as two 9-pin headers offering up to ...

Daniel Ansorregui has developed LightInk, an open-source solar-powered E-ink watch inspired by 90s solar digital watches. It ...

If you were to point to a single device responsible for much of Hackaday’s early success, it might be the Arduino Uno. The ...

LED candles are neat, but they’re very suboptimal for wish-making: you can’t blow them out. Unless you take the circuit from ...

Researchers at The University of Osaka, in collaboration with ULVAC, Inc. and Ritsumeikan University, have developed a new ...

It seems like just yesterday that the original Apple Watch hit shelves, and many of the features introduced in 2015 (the Apple Watch's debut year) are still an integral part of the watchOS experience ...

Measuring the speed of a rotating object is a common requirement. Knowing the speed of table and ceiling fans, as well as kitchen appliances such as mixers and grinders, can often be useful. However, ...

registered in the LED subsystem with led_classdev_flash_register function.