2023-12-06, 09:11 PM
(2023-12-06, 08:09 PM)Techstyle Wrote:(2023-12-03, 01:16 PM)Jodel Wrote:(2023-11-29, 04:17 AM)SCarns Wrote: If OpenCPN calculates it, it should be able to send it back out to signalk through NMEA over TCP/IP. There's also a bunch of other ways to calculate it, like in some sort of SK plug-in. I thought the derived-data plugin calculated it, but it doesn't at this time. You could always use Node-Red to calculate it inside of SignalK using ETA and current time to calculate TTG.
As far as I know, KIP only displays data, you'll need to come up with TTG some other way. Derive-data does calculate ETA.
Hi,
Thanks for the help. I am not sure if there is a NMEA sentence for Time to Go or for ETA. I'll check out the derived data plugin. That seems useful.
I suppose for manipulating data there is no escaping Node Red
I'll have to give it some time and learn how to use it properly.
Thanks again, Jodel
Derived Data does calculate it and sends out a SignalK value for navigation.courseGreatCircle.nextPoint.estimatedTimeOfArrival
Brilliant. When I get back to the boat again I will install the derived data plug-in and experiment. Thanks