Despite their limited use for testing wall chargers and power banks, USB inline testers let you compare power sources. In three videos, we take you through their features, and we also try an inline ...

UncleStem tested his fully-assembled giga Arduino using, obviously, some custom-made giant LEDs and resistors that fit onto ...

Discover how to build a simple device that converts light into electricity using LEDs and diodes. This step-by-step guide ...

A small portable device featuring timer, clock, and calendar functions, equipped with a simple and functional interface and a truly long battery life.

Making a servo tester using an Attiny85 micro chip, Attiny45 also works for this project. This diy servo tester is as good as ...

When life gives you lemons, make lemonade.” At least, that was my thought process when I received this MTH Premier Norfolk & ...

A blast from the Elektor archives: this clever 1998 battery tester uses a simple LED display to reveal a battery’s true condition under load — even below 1 V. Built from standard components and no ...

This system uses a colour-changing LED (RGB LED/tri-colour LED) that switches to a new colour every 5 seconds. Simultaneously, the colour name is displayed on an OLED mini screen (SSD1306). This ...

I don’t know about you, but although I like reading about electronics in a theoretical sort of way, there’s nothing I enjoy more than the hands-on building of something and then watching that thing ...

Forward-looking: Downscaling has long been the driving force in technological progress – from boosting computing power through smaller transistors to advancing display technology with micro-LEDs. Now, ...

8086 Consultancy has designed a simple board called the Pico Indicator to add LEDs to the GPIO and power pins of the Raspberry Pi Pico and other boards with the same pinout. In the past, we’ve seen ...