Part of a large project, this is the heart of the system, the matrix board
Something that @LOOKMUMNOCOMPUTER might be interested in
Link to download page https://sparkys.tech/index.php?page=matrix_sequencer
Tech site: https://sparkys.tech
Website: http://sparky-projects.co.uk
Forum: http://sparky-projects.proboards.com
Discord: https://discord.gg/yPHpW2j