2024-03-12, 08:06 PM
Hi folks!
I want to change some NMEA 0183 data and I did it with Node-RED. Know I am thinking about using Signal K but I am not sure if it is possible to modify data. I saw this thread:
https://forum.openmarine.net/showthread.php?tid=3809
But there is no answer to the question which was raised at the beginning.
I need to change a NMEA0183 MWV sentence and convert it to a NMEA0183 VWR sentence. Both contain wind information.
VWR is "relative wind angle". MWV is "wind angle" which seems to carry both, true and relative wind angles. In my case it is the relative wind angle but my autopilot only accepts VWR.
So, it is a simple conversion in this case. I can do it with Node-RED, I need to calculate a new checksum and send it out again. Okay.
But can Signal K modify sentences?
I am also thinking about writing a plug-in for this special scenario. But before starting with that, I thought there might be something already which I can use.
Best regards, Malte
I want to change some NMEA 0183 data and I did it with Node-RED. Know I am thinking about using Signal K but I am not sure if it is possible to modify data. I saw this thread:
https://forum.openmarine.net/showthread.php?tid=3809
But there is no answer to the question which was raised at the beginning.
I need to change a NMEA0183 MWV sentence and convert it to a NMEA0183 VWR sentence. Both contain wind information.
VWR is "relative wind angle". MWV is "wind angle" which seems to carry both, true and relative wind angles. In my case it is the relative wind angle but my autopilot only accepts VWR.
So, it is a simple conversion in this case. I can do it with Node-RED, I need to calculate a new checksum and send it out again. Okay.
But can Signal K modify sentences?
I am also thinking about writing a plug-in for this special scenario. But before starting with that, I thought there might be something already which I can use.
Best regards, Malte