SparkFun Electronics Forum

I have a Razor 9DoF with the ATSAM21 ARM M0 processor.
How do you set up the external serial port? I want to connect the GPS Mouse.
The M0 device has extra UART peripherals and I want to use the pins marked as Rx and Tx.
How do you do this?
All other examples use software UARTS.

Check out:

• The end of this section in the hookup guide: https://learn.sparkfun.com/tutorials/9d ... no-library
• The comments section of the hookup guide: https://learn.sparkfun.com/tutorials/9d ... de/discuss