2017-06-01, 06:00 PM
(2017-05-30, 10:04 PM)abarrow Wrote:(2017-01-04, 10:50 PM)pcmm Wrote: getting the raw data in Isn't an issue look here:
http://www.thomasknauf.de/rap/seatalk3.htm
I guess the next step would be for someone to write some code to convert the seatalk strings into NMEA. Not being a coder I don't know how tough that is, but the site above even shows the little bit of circuitry that is needed to get the seatalk bus into RS-232 format.
Since NMEA 0183 is handled by kplex, this isn't really an Openplotter thing, it's more about kplex accepting Seatalk input. It is discussed in the kplex FAQ. It appears that the kplex author isn't very enthusiastic about including Seatalk.
I am using a YAPP ST to USB converter designed by Angus McDoon on the YBW forum some years ago.
I have not been able to contact him, but it's a neat little device
It runs on a PIC microcontroller. I have the design and code and a few PCB's as well.
Tried to make it work on Arduino but no luck because of the odd 9bit format.
Regards, Harry