[Jens] wanted a subscriber counter for his YouTube channel. He could have gone with a simple OLED, LCD, or LED display, but he wanted something more tactile and interesting. So he built a mechanical 7 ...

The project illustrates a Charlieplexing of a group of 7-segment LED displays which is similar to the Charlieplexing of discrete LEDs but with some changes since all the LED segments have a common pin ...

In a previous article, we explored the behavior of an LED diode as a small light source. We have seen how important a protection resistor is to light up this component. In this article, we will ...

Old lab equipment was often built to last, and can give decades of service when treated properly. It’s often so loved that when one part fails, it’s considered well worth repairing rather than ...

Screens dominate our lives, and we're looking at them more and more. Between the screens on phones, TVs, computers, and even fridges, you probably rely on looking at a screen for many aspects of your ...

Casio is celebrating its 50th anniversary with a new gold-colored ring watch The CRW-001G-9JR features a 7-segment LCD display and is waterproof Priced at ¥22,000 JPY (approx. $150 USD), it’s ...