Many devices use multi-digit seven-segment LED indicators with dynamic indication. Usually they are connected to the ports of the microcontroller or to specialized driver ICs, such as the MAX7219.

In just the past two years I have seen many innovations sent to my house to have a look at and bring my findings to you. Of course, they have had great success with their new chassis and cooling ...

If you are experiencing issues with your ASUS PC, you can troubleshoot the problem by viewing the status of the Q-LED indicators. This article shows how to troubleshoot ASUS motherboard with Q-LED ...

On Wednesday, Apple released the first beta of iOS 17.1 to developers, as the company promised to bring some new features later this year. We’ve already covered most of what’s new in the iOS 17.1 beta ...

Skoda continues to tease its facelifted Superb, with only a few days remaining until the model’s debut in Bratislava on May 23. This latest teaser focuses on the refreshed Superb’s lighting system, ...

This LED DC voltage indicator circuit is a voltmeter, rather than simply a battery tester. As such it may measure voltages as low as 3V. It utilizes venerable LM741 operational amplifiers applied as ...