Push-Pull USB Arcade Spinner

Here is a push-pull spinner that I designed for my full-sized MAME arcade machine. See it in action here https://youtu.be/APumu_h8S0E. The spinner and micro-controller setup are based on a build I found on YouTube by Joe W. https://youtu.be/RsdFCMazzgI.

This works great for a lot of spinner based games in place of a top-fire joystick button. Pressing the spinner down and pulling it up will trigger joystick button responses, keyboard key presses, or mouse button presses, depending on which sketch is used. In the game, ".50 Caliber", I have Push mapped to Fire and Pull mapped to Grenade. In "Discs of Tron", it's used for aiming high or low. And it’s also a great regular spinner, too. “Tempest” is no fun with a joystick!

The spinner itself is made from a 2-phase, 5VDC incremental rotary encoder wired to an Arduino Pro Micro, which the system sees as either a mouse, mouse and keyboard, or mouse and game controller, depending on the Arduino sketch used. The Arduino sketches are avai