What happens when you combine an Arduino-based microcontroller with a palm-sized aluminum box and clicky buttons? A fidget ...

Some kind of continuity beeper has been a standard piece of gear since the dawn of electronics. Sure, you probably have an ...

Neopixels and other forms of addressable LEDs have taken the maker world by storm. They make it trivial to add a ton of controllable, glowing LEDs to any project. [Arnov Sharma] has made a great ...

Discover how to build a simple wireless power transfer system at home using readily available components like enameled copper wire, an LED, a 2N2222A transistor, and a 9V battery. This step-by-step ...

New year, new TV? That's a great plan! It might be tempting to wait for the new 2026 models, which will be announced in the coming days and weeks, but it's never a good idea to buy a TV when it first ...

Abstract: This article proposes a brushless multiexcitation generator (MEG) using parallel magnetic circuits for dc power system with enhanced output power capability. The multiexcitation sources ...

Abstract: This paper presents an electrolytic-capacitor-less LED driver. The driver is made up by the integration of two converters in parallel. The first converter is a Buck-boost used to deliver ...