2024-08-19, 12:24 AM
Ahh yes, that would be an issue. I think in theory you might actually be able to get the SAMD to speak UART over those pins by mapping them to SERCOM5 instead of the USB peripheral, but I don't think that's a super good idea (since you'd lose the regular USB interface). Still, slow-speed USB is a lot more achievable than you might think with very cheap microcontrollers!