Wind Masthead Transducer Interface

[Techstyle]

Hi All,
I've got a 45' Van de Stadt Agulhas here in South Africa.
My old instruments are mostly all toast.
I'm excited to pursue the OpenPlotter route!

I would appreciate a first pointer towards how to interface a Raymarine Wind Masthead Transducer with the Pi running OpenPlotter?
The Transducer has 5 wire connections:
Red and Black is for power
Green and Blue is for wind direction
Yellow is for wind speed.

Thanks so much!

the link below should help in what you should be seeing:
https://forum.raymarine.com/showthread.php?tid=97

As for how to integrate it - the speed may work from the new GPIO pulses section - but I haven't used this.  the direction is a analogue voltage which may need an analogue to digital converter to get in to the pi.

if you have the ST50/ST60 wind indicator - see if it puts out an Seatalk 1 output (even if the screen itself is not working), this can be read into the Pi with a $3 optocoupler