[SOLVED] Problems with 1wire sensors

[e-sailing]

VWR - Relative Wind Speed and Angle
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$--VWR,x.x,a,x.x,N,x.x,M,x.x,K*hh<CR><LF>
Field Number:

1. Wind direction magnitude in degrees
   
2. Wind direction Left/Right of bow
   
3. Speed
   
4. N = Knots
   
5. Speed
   
6. M = Meters Per Second
   
7. Speed
   
8. K = Kilometers Per Hour
   
9. Checksum
   

Especially the left/right of bow, how do you make that?

Tips?

NMEA0183 generator has its limits. You are right it isn't able to create this sentence. VWT is already outdated but VWR isn't, MWV works.
It also can't convert Kelvin to Farenheit.

Are you sure ST2000+ will use NMEA as wind direction system? Or does it only work with wind from seatalk. I would check this before put much effort in creating this sentence.