XIAO USB Port and Serial Port

I have a question about the USB Type-C port communicating with computer will conflict with the UART Serial Port in use, and cause the program upload failure, just like Arduino uno?

AND the second question is can I use SoftwareSerial to make more UART serial port?

Thank you!

I have a question about the USB Type-C port communicating with computer will conflict with the UART Serial Port in use, and cause the program upload failure, just like Arduino uno?

What are the specific problems? Can you describe it in detail?

AND the second question is can I use SoftwareSerial to make more UART serial port?

Yes

To Baozhu: Thank you! Your simple “Yes” made me inspect the libraries - and there is a “SoftwareSerial”.

Hi, I have the same question.

I intend to buy the Xiao, xiao shield and Grove 485.

Can the UART port be used as the same time as the USB port?

Yes, I’m using it at the moment: USB for debug output, Serial1 for talking to an ESP01.
But I never tried software serial…