MAX7219 housing

Completely back to the basics case for a MAX7219 module with square board

Meant to fit a MAX7219 module along with an Arduino Pro Mini and a voltage regulator, it fits all that with relative ease. The finished and assembled products are sold [in this shop page](https://risingmotorsport.com/product/kokoro-beat/). I do take a cut from sales but that's mainly from the printing and assembly stage, still a great way to support me and get something in return.