“Charlieplexing” as a method of multiplexing LED displays has recently attracted a lot of attention because it allows you, with N I/Olines, to control N×(N–1) LEDs (reference 1 through reference 5).

Many options exist to drive seven-segment LED displays, but most are limited to low output currents. The approach described here uses one 74ALS374 or 74AS374 octal latch, wired as a shift register, ...

Devon-based LED chip-maker Plessey is to focus entirely on micro-LED-based micro-displays, and has ceased launching new lighting LEDs. “The business strategy is 100% micro-LED applications: augmented ...

This is a simple 0 to 9 counter circuit constructed using Arduino! Here, a common cathode 7-segment LED display is connected to Arduino for displaying the digits. The code (Arduino sketch) allows push ...

Around these parts, we generally celebrate clever hacks that let you do more with less. So if somebody wrote in to tell us how they used multiplexing to drive the front panel of their latest gadget ...

Explore the OLED vs Mini LED debate and discover the best gaming displays of 2026. Learn how next‑gen screen technology ...