LED Matrix PCB

In my last post I showed some configurable LED panels I designed using OpenSCAD. For the LEDs I used a neopixel ring I picked up a while back from Adafruit.

I figured that instead of buying these panels from Adafruit, I could design my own with as many LEDs or in whatever form factor I want.

Design

Simple 5x5 LED matrix:

The panels can be chained together using the input and output ports

Well it doesn’t get much more simple then that, does it?

PCB Layout

The PCB is also very simple. I debated on where to put the pads for the ports. At the moment they are on the bottom.

In the future I’ll consider adding mounting holes.

Testing

Testing with my Arduino UNO