XDA Developers on MSN

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

LED matrix display comes in. There are plenty of LED-based displays out there like this one, but the problem is that many of them are proprietary, may not support your own self-hosted solutions, or ...
Hackaday

LED Matrix And A Phototransistor Make A Reverse Camera

A digital camera has an array of sensors that captures light reflected or transmitted onto it. This build is something closer to a reverse camera – a single sensor that makes images on a matrix of ...
EDN

How-to design LED signage and LED matrix displays, Part 3

Part 1 of this three-part series introduced the technical and engineering steps necessary to design an LED display system from individual LED lamps. Part 2 provided the remaining steps needed to ...
EDN

Arduino 8×8 LED Matrix

8×8 LED Matrix modules are now widely available, and fortunately they are easy to use with our favorite Arduino microcontroller. 8×8 LED Matrix module have many applications in real life, such as ...