Using Artnet DMX and the ESP32 to Drive Pixels
Contributors:
Englandsaurus
Englandsaurus 
Resources and Going Further
Now that you know how to create your own fixtures, try making some bigger displays of your own and mapping them out in Resolume. Your power supply is the limit!
Using OpenSegment
How to hook up and use the OpenSegment display shield. The OpenSegment is the big brother to the Serial 7-Segment Display. They run on the same firmware, however the OpenSegment is about twice as big.
LED Light Bar Hookup
A quick overview of SparkFun's LED light bars, and some examples to show how to hook them up.
Getting Started with the Teensy
Basic intro to the Teensy line of products, with soldering and programming suggestions.