Studied the article, and this is the circuit that worked for me
I purchased a whole pack of resistors but used these ones:
R1 = 1800 ohms (close to plus pole)
R2 = 3300 ohms (close to minus pole)
V out to the PIN 11 and should bring it to around 3.2V (definitely less than 3.3V)
Even though the volt from running WNDVN_CAL ends up with WNDVN_DIR_V_MAX = 4.9V, the flight controller can read it correctly and gets 0, 90, 180, 270 degrees just were it should be. The wind direction is working. So I think it’s some kind of volt reading discrepancy depending on the ground used. I will not bother much with it.
But maybe I should?
Next, I finally received the Bourn unit and that also works.
Unfortunately I got the product 6630 S1D and not the 6630 S0D, this means my unit do not continuously turn around but stops after 360 degrees.
Anyway it does work fine with same R1 and R2 setup as the other unit.
However, it really need a lot of force to turn it around. And to open it to ‘degrease it’ seems very difficult to me without breaking the housing.
Unless anyone ask me, I will skip to get a new S0D version unit, since i will still need to ‘de grease’ that to make it work. I do will try if there is a need though.
Now will try install the Hall non contact sensor in the wind vane housing.