Wind Masthead Transducer Interface

[aviljoen]

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!