NMEA WaterSpeedAndAngle incorrectly formats angles with a degree sign

[ahopper]

Describe the bug

The NMEA string produced by WaterSpeedAndAngle has degree signs in it eg. $ECVHW,,T,45.5 °,M,24.0,N,44.4,K,*F7

Steps to reproduce

// put sample code here
WaterSpeedAndAngle vhw = new WaterSpeedAndAngle(null, UnitsNet.Angle.FromDegrees(45.5), UnitsNet.Speed.FromKnots(44.4));

var s = vhw.ToNmeaMessage();

Expected behavior

s should be $ECVHW,,T,45.5,M,24.0,N,44.4,K,*F7

Actual behavior

$ECVHW,,T,45.5 °,M,24.0,N,44.4,K,*F7

it is caused by
https://github.com/dotnet/iot/blob/ae707ec89735bdac46346cb15b2296adf23b5079/src/devices/Nmea0183/Sentences/WaterSpeedAndAngle.cs#L124C16-L127C1

this fixes it

   // It seems that angles should always be written 0..360.
   string normalizedT = HeadingTrue.HasValue ? HeadingTrue.Value.Normalize(true).Degrees.ToString("F1", CultureInfo.InvariantCulture) : string.Empty;
   string normalizedM = HeadingMagnetic.HasValue ? HeadingMagnetic.Value.Normalize(true).Degrees.ToString("F1", CultureInfo.InvariantCulture) : string.Empty;

Versions used

[pgrawehr]

Thanks for reporting, that is indeed a bug. I apparently never used the angle values of this message (and I'm not sure any equipment does, since the log sensor usually doesn't have an embedded compass).
I'll fix it with the next round of updates in that binding.

[raffaeler]

@pgrawehr I assigned this to you. Feel free to change this if I misunderstood.