ps2x2pico Version 1.0
Thanks to everyone for helping, debugging and testing!
ps2x2pico.uf2
uses the mouse rate set by the host PC
ps2x2pico-100hz.uf2
uses fixed 100 Hz mouse rate, ignores host request
ps2x2pico-200hz.uf2
uses fixed 200 Hz mouse rate, ignores host request