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I built this beautiful LED matrix display with an ESP32 for $30

In the world of smart homes, there are plenty of fantastic devices out there that can integrate well with Home Assistant and your other tools, and while dedicated sensors are great for their ...
Hackaday

Tidy LED Matrix Displays GIFs On Demand

When it comes to LED matrixes, building one is just the first step. Then you have to decide what to display on it. [panjanek] came up with a relatively flexible answer to this question, building an ...
Hackaday

Modded Lightbox Makes For Attractive LED Matrix Display

If you’ve been to a wedding or a downtown coffee shop in the last 10 years, you’ve probably seen those little lightboxes that are so popular these days. They consist of letters placed ...
Electronics Weekly

LED matrix driver, touch matrix driver and RISC-V in one IC

Lumissil Microsystems has introduce a speciallist RISC-V microcontroller for touch-controlled LED-based user interfaces, with optional sound feedback. There are two versions: IS31CS9310 for industrial ...
EDN

Dot-matrix displays use blue LEDs

About the width of a AAA battery, the HCMS-2919 (0.15-in. high characters) and HCMS-2976 (0.2-in.) LED displays are and can enhance the appearance of products with blue display characters that are ...