Hello,
I have put a Trinket M0 into my Switch.
Flash Trinket with : Version_2_trinket_rebug_both_straps.uf2
and after with : Trinket_Method3.UF2
(without renaming files)
I remove USB port and LED.
I put the Trinket with 3V, GND, USB+, USB- (blue, black, green, yelow)
I have modify Joycon...