FYI, Arduino Uno does not work

[btmurrell]

The README states "Arduino(ish)" should work, but since the Uno does not have Serial1, Serial3 etc., it does not work. Might be worth stating in the readme there is no Uno support.

[Hyperdimensionals]

I believe you can change those to the standard no-number Serial, or use the SoftwareSerial library to use other pins for serial communication.