OpenMarine

Playing with version 0.11.4a here.

BME280 sensor working perfectly - thanks

This may be operator error as I have never managed to make it work before but I can't seem to get the magnetic heading passed to any NMEA sentence (HDM of HDG). 

I can see the heading correctly in Signal K diagnostic but in NMEA all I get is a heading of between 4 and 6 that varies very little.

I'm using the NMEA sentence builder. 

Is this some angle conversion in radians or something? 

Chris

NMEA builder needs revision but it seems that your problem is about units. Signal k uses radian for heading you can convert to degree in NMEA builder but I don't know if this is working now.

(2017-05-12, 05:03 PM)Sailoog Wrote: [ -> ]NMEA builder needs revision but it seems that your problem is about units. Signal k uses radian for heading you can convert to degree in NMEA builder but I don't know if this is working now.

I tried to generate NMEA HDM by converting radians into degrees with OP v0.11.4 and it works fine.

(2017-05-13, 09:52 AM)ellgia Wrote: [ -> ]

(2017-05-12, 05:03 PM)Sailoog Wrote: [ -> ]NMEA builder needs revision but it seems that your problem is about units. Signal k uses radian for heading you can convert to degree in NMEA builder but I don't know if this is working now.

I tried to generate NMEA HDM by converting radians into degrees with OP v0.11.4 and it works fine.

Yes it does, I tried the same. Strangely though when I look at Signal K diagnostics it shows the heading degrees...

No does anybody have a recipe for generating a NMEA HDG message ... where does variation and deviation come from and are they also radians?