2021-12-19, 09:36 PM
(2021-12-16, 07:41 PM)PaddyB Wrote:(2021-12-15, 04:33 PM)PaddyB Wrote: I thought every nmea sentence coming in went straight back out again on port 10110 but apparently not, my wind sensor sends some none standard ones which don't make it.
Hi, been digging a bit deeper, it looks like I was wrong, all nmea sentences received should go straight out again. The wind sentences I was looking at are >
$PLCJ,73C5,4D36,32,6283,8272
Seems the reason they weren't getting sent out is because the checksum is wrong, actually missing. There's a switch in the signalk connections setup to validate the checksum , with that off and opencpn control checksum unticked the messages show up in opencpn nmea debug window.
Could it be your DBK sentence has a wrong checksum? Do you have an actual message copied we could look at?
In my case the DBK sentence has an "A" or a "V" in the first field. This I understand is non-standard. Opencpn seem to ignore it and prints the correct depth on its dashboard if I make the connection directly in opencpn. If I connect to Signal K, its data browser shows zero for depth. I'll take a copy of a Stowe DBK sentence next time I am on the boat.
Somewhat related, I have two NMEA to usb adapters. One works and the other seems not to.
Any recommendations for adapters for both in and out that work well with Openplotter.?
Would a RS 232 to USB be sufficient?
Jodel
Jodel