2020-12-13, 03:35 PM
Openplotter has moved to use Signal K between Op and OpenCPN and it works perfectly .
Consequently OpenCPN doesn't receive any more an NMEA flow, (but a Signal K flow), and cannot populate the NMEA debug window we used to check the proper acquisition of GNSS signals.
We are now limited to check the 'GPS status window' indicator, or the 'Satelite in view' value in the dashboard ...
But I noticed among the possible connections was one called GPSD . GPSD is the utility allowing to share a serial port by multiple users, coming with a number of clients allowing to display, from command line, the GNSS information. Three of those clients are interesting to evaluate the way our GNSS pucks operate :
In the picture,both connections are visible :
OK, I admit the ergonomic is quite rustic, and there are some typo (Non instead of Lon) but the information brought by these utilities can be highly precious !
Here below, the connections windows, xgps, cgps, gpsmon :
Consequently OpenCPN doesn't receive any more an NMEA flow, (but a Signal K flow), and cannot populate the NMEA debug window we used to check the proper acquisition of GNSS signals.
We are now limited to check the 'GPS status window' indicator, or the 'Satelite in view' value in the dashboard ...
But I noticed among the possible connections was one called GPSD . GPSD is the utility allowing to share a serial port by multiple users, coming with a number of clients allowing to display, from command line, the GNSS information. Three of those clients are interesting to evaluate the way our GNSS pucks operate :
- gpsmon see attached screen captures
- cgps "
- xgps "
In the picture,both connections are visible :
- : Networt, input, Sigal K, localhost, port 3000, priority 1
- : Network, input, GPSD, localhost, port 2947, priority 0
- 1st Advantage : the NMEA debiug window is back !
- 2nd, 3rd & 4th advantages : the GPSD-clients are there to, as close as a command line !
- sudo apt install python-gi-cairo
OK, I admit the ergonomic is quite rustic, and there are some typo (Non instead of Lon) but the information brought by these utilities can be highly precious !
Here below, the connections windows, xgps, cgps, gpsmon :