NMEA 0183 wind vanes

As I say if you can find a better one that is not supported by the code I can look at adding it in. For such a project you definitely need the right thing. Those 3D ones from gill instruments look very nice, I believe that is what SailDrone uses.

Thanks, I’ll have a look. They look heavy. Clearly, you want to minimise weight up high.

Really excited that there is an active sailboat community!

I contacted www.r-p-r.co.uk who supply the LCJ Captuers CV7 anemometers in the UK. They confirmed with the manufacturer that the CV7-OEM module (100g) is IP67 rated. Their UK retail price for the CV7 is nearly the same as the Calypso wired model, but I think you may get the Calypso for less from Europe.

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Look at the amazing wind vane build by Odox, mholden and Byggasaker in the recent posts (Especially post 746) in Sailboat Support

About protocols, there is this SignalK-protocol witch is open source.
https://signalk.org/.