pub fn parse_vhw(sentence: NmeaSentence<'_>) -> Result<VhwData, Error<'_>>Expand description
Parse VHW message
$GPVHW,100.5,T,105.5,M,10.5,N,19.4,K*4F
- 100.5 Heading True
- T
- 105.5 Heading Magnetic
- M
- 10.5 Speed relative to water, knots
- N
- 19.4 Speed relative to water, km/hr
- K
Each is considered as a pair of a float value and a single character,
and if the float value exists but the single character is not correct, it is treated as None.
For example, if 1 is “100.5” and 2 is not “T”, then heading_true is None.