For my ST2000+, it was 4800 baud. If the cable between pi and nmea input is long it could pick up magnetic interference when starting the engine; in that case I'd suggest using shielded cable e.g. ethernet cable, and tying the shield to 0V - only on one side. Please note that the autopilot route plugin was not essential. But it seems to be a slick way to go around the corner.
Having said all that, the reality of sailing by a track is that I don't really use it that often. Clicking those waypoints together on a rolling boat can be a bit of a challenge to start with. In open water you sail straight lines. In narrow, windy creeks you cannot leave the boat alone, and with wind, waves and tide together, don't expect miracles with regard to precision. With a buoy dead ahead of your bow, you don't want to go fiddle with a waypoint.
So, still, if I were you I'd first use the USB to NMEA (RS232) cable and see if it's worth all the trouble for you.
Cheers,
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Yeah I did try group setting, but there was a discrepancy between what I could do at the linux prompt and what opencpn could pull off. But the latter does not allow me much debugging; and I even had to kill it a few times as it got non-responsive.
Having said all that, the reality of sailing by a track is that I don't really use it that often. Clicking those waypoints together on a rolling boat can be a bit of a challenge to start with. In open water you sail straight lines. In narrow, windy creeks you cannot leave the boat alone, and with wind, waves and tide together, don't expect miracles with regard to precision. With a buoy dead ahead of your bow, you don't want to go fiddle with a waypoint.
So, still, if I were you I'd first use the USB to NMEA (RS232) cable and see if it's worth all the trouble for you.
Cheers,
-
(2020-12-01, 12:22 AM)seandepagnier Wrote: normally /dev/ttyAMA0 is in user tty or serial or something like that
check with "ls -l /dev/ttyAMA0" and also see if the user pi is in that group with "groups" You may want to add the user pi to the group.
Yeah I did try group setting, but there was a discrepancy between what I could do at the linux prompt and what opencpn could pull off. But the latter does not allow me much debugging; and I even had to kill it a few times as it got non-responsive.