Always want to play Centipede, Marble Madness, Missile Command and other Arcade legacy games in the 80's like equipment? Atari style Trackball

[DIY-CraigB]

I started building an Arcade Spinner from ideas from YouTube, and was able to play Atari Tempest like in the Arcade.
I always wondered about a Trackball, if it was possible without going top dollar from Ultimarc or SuzoHapp.
I was able to source a 3" Trackball from RetroArcade.us (non P/S 2 model $20-30 cheaper) through Amazon,
and revised my code to work with an Android micro-controller. It was a fun little project.

If there are any other Adventurous Gamers out there and a little handy with their hands, I have a Github page walking you through the process.

https://craigb-spinner.github.io/Arcade-Trackball/

I have various code configurations with 10 Buttons, or stripped down to NO Buttons.
Yes, just the Trackball acting like a USB mouse in MAME. (RetroPie or PC)
I sourced box parts from a local surplus store and century old wood from my parents basement. Electrical/Electronics from local surplus store, and remaining Electronics store and finally Amazon.

The Trackball works great in RetroPie!!!
Game On!

Craig