True wind, speed & direction.
All, I know that true wind is calculated, but my question is, is there an existing N2K PNG that can be used, or do I need to use the derived data plugin? I’m setting up a new system with an RPi5 and I could have sworn I had true wind on my old system last year. Data source is Raymarine ITC-5 for speed & wind, and EV1 for heading.
4 Replies
PGN 130306 Wind Data can be used with different references. Have a look here: https://canboat.github.io/canboat/canboat.html
I doubt any of the Raymarine devices send true wind data to N2K, though, so you'd need to use the derived data plugin.
Previous versions of the Lighthouse software on their MFDs sent out true wind data, latest versions do not. That may have been why you saw it before?
Yep, that makes sense. I'm tried a few things yesterday while at the boat and couldn't get it to work. Figured out today that I need
navigation.magneticVariation from somewhere to get it working via the derived data plugin. I had turned off the MFD and AIS when I left the boat, so I don't have any position data when working remotely. I got magnetic variation working temporarily via the simulate paths plugin and now, suddenly, I have true wind data. 😀You can put deviation in defaults. https://github.com/SignalK/signalk-server/wiki/FAQ:-Frequently-Asked-Questions#how-to-add-missing-units-and-static-data-eg-displayname
GitHub
FAQ: Frequently Asked Questions
An implementation of a Signal K central server for boats. - SignalK/signalk-server