@giandeejay Good to find that someone found my github page how to build a spinner and also trackball using an AtMega32U4 MCU (MicroController Unit). I also did some Youtube demos of the devices. Original hack was JoeW but his build diverged from mine since 2019. I did multiple versions of code with and without buttons (joystick or mouse). Even a MiSTeR version with adjustable sensitivity. There were multiple build versions like on thingiverse. I know someone in Europe had multiple language translation of my version howto. I was even so popular the Chinese did a knot-off of my design at retroarcadecrafts and alibabba/aliexpress.