This is the connection scheme of the Davis anemometer for Arduino. If you want to use it in Raspberry YOU MUST USE 3.3V INSTEAD OF 5V:
You can connect "Wind speed" to any GPIO of your raspberry and use the next version of openplotter-gpio app to set a signal k key for wind speed. You should use the pull-up resistor too.
"Wind Direction" is a little bit complex because that is an analogue output (0-3.3V) and Raspberry has not analogue inputs. You have to use an analogue to digital converter. If you use the ADS1115 chip you can set wind direction using the openplotter-i2c app.
This is all ready in the MacArthur HAT, just plug and play.
You can connect "Wind speed" to any GPIO of your raspberry and use the next version of openplotter-gpio app to set a signal k key for wind speed. You should use the pull-up resistor too.
"Wind Direction" is a little bit complex because that is an analogue output (0-3.3V) and Raspberry has not analogue inputs. You have to use an analogue to digital converter. If you use the ADS1115 chip you can set wind direction using the openplotter-i2c app.
This is all ready in the MacArthur HAT, just plug and play.