As part of building an arcade machine, I decided to buy the Ultimarc I-PAC Ultimate I/O Board.
I built the arcade machine using a Raspberry Pi 4 with RetroPie installed. Although there is already a Linux Library available I thought I would do a refresh to make it a bit simpler for my configuration and to provide a library for the Raspberry hardware.
The library will enable a script (list of commands you want to send to the board) to be executed, to configure the Leds as you want.
If you want to learn more about this utility and how to use it here is the link to the Retropie utility to configure the LEDs on an Ultimarc I-PAC Ultimate I/O Board on github.com
Enjoy !! If you would like to give a donation that would be more than welcome (but very much optional)