A case for an STM32 "black pill" project

This is a customizable case for an stm32f103c8 "black pill" project, with two momentary buttons, four LEDs, and one cable hole.

The project is a Gamecube controller to USB adapter letting one use Gamecube gamepads and dance pads with a computer or tablet. [Here are full instructions](https://www.instructables.com/id/Gamecube-Controller-USB-Adapter-and-Getting-Starte/) for the project. Here's the [github page](https://github.com/arpruss/gamecube-usb-adapter).