Setting up a system with Seatalk instruments

[Elmumu]

hello folks

I'm new here. Just boat my sailboat a month ago, and going the DIY route with the navigation system. I have an old Raymarine installation, consisting of a St30 bidata speedo / depth , an anemometer, and a autohelm st4000 pilot.

My goal is to feed all of them in Openplotter. Question is, is it possible to link the seatalk bus to a multiplexer and get all the data correctly in openplotter ? I know this is some really old stuff, but all the instruments are working so why replace them.

Help would be much appreciated

Thanks