This is an older thread but I have the same issue. Here's a photo my motor controller (build by Sean).
My actuator provides potentiometer feedback. I assume this goes to the pins/holes labeled rudder. The box with the round surfaces makes me think those are for 0 and 10k Ohm ends (rheostat) and the square one for the center of the pot. This would also make sense for the End stop which uses the same convention but confirmation would be nice.
I couldn't find any documentation on the PCB.
![[Image: AP1GczPHIpOgaxVlX_D64q3keL9XVhvjua3o4HBL...29-s-no-gm]](https://lh3.googleusercontent.com/pw/AP1GczPHIpOgaxVlX_D64q3keL9XVhvjua3o4HBL7I-EMsht2EC8wFRDe4v8Y5J0oNIp03vT4d0VtMdoNrW4-HQiHUVy7a_LPytBoCdpoiZrqRyskKHOhrUZf9dCRq6MH_eICE5uZZJA7x72y4KbX9eyPbY3gg=w847-h1129-s-no-gm)
I think I found my answer here:
https://forum.openmarine.net/showthread....9#pid26079
My actuator provides potentiometer feedback. I assume this goes to the pins/holes labeled rudder. The box with the round surfaces makes me think those are for 0 and 10k Ohm ends (rheostat) and the square one for the center of the pot. This would also make sense for the End stop which uses the same convention but confirmation would be nice.
I couldn't find any documentation on the PCB.
I think I found my answer here:
https://forum.openmarine.net/showthread....9#pid26079