Your Pi is way more capable then you think it is.

This expandable LED display for a microcontroller in Figure 1 has a simple interface with only 6 data/control wires and can be easily accommodated to a DIY design. The display has static indication.

I’ve seen a lot of Pixel LED projects and know every maker does things differently. I wanted to show you what I am doing for my Pixel LEDs. This post will give you an Arduino Pixel LED Controller ...

If you’ve worked on a project with small LEDs, you know the frustration of determining their polarity. This ingenious LED Probe from [David] packs a lot of useful features into a simple, ...