Based on the Sandy Sims 3x3 MIDI Merge this has been expanded to a 5x5 merge
Updated to a Teensy 4.1 to use the USB Host function
MIDI inputs 1-3 are standard DIN
MIDI input 4 is the USB Host
MIDI input 5 is standard USB MIDI
MIDI outputs 1-4 are standard DIN
MIDI output 5 is standard USB MIDI
It works except for the menus to configure inputs 4/5 these need some work.
Program change filter
Control change filter
Clock filter
3 way splits on each input
5 user memories for configurations