NMEA implementation for Arduino.
Example output:
$POV,P,1018.35*39..
$test*16..
$POV,P,951.78*05..
$POV,P,951.84*06..
Check out .github/workflows/main.yml to see how
the NMEA values are tested for correctness by running this sketch in an emulator
using the avr8js Arduino emulator library by
Wokwi.