(2022-02-14, 10:26 AM)drbarritt Wrote: Hi Pieter, I have used one of the pumps from Cactus and it works very well on my yacht. I am using a 10Amp H bnridge PWM controller for it. I had to do a few mods to the Arduino code to drive this. The pump drives a double acting ram that is directly linked to my transom hung rudder. I have a bypass valve across the ram to allow normal tiller steering. This has a switch to detect when it is open that is connected to the Pi and disengages Pypiloy automatically. I also fitted a linear pot in parralel with the ram to give rudder position feedback to the Arduino.
Regards
David
Guys, thanks!!
Next time I will be at the boat I will measure my cylinder size. I guess I wont need a bypass valve in my situation as my current steering is already hydraulic. I do wonder If I need check valves to prevent my steering wheel from spinning instead of moving the cylinder. Will check my Steering wheel pump if it has check vales.
Picture of my steering is attached. It is connected to the crossbar, operating both rudders.
I didn't knew linear pot's exist, so thanks, make things easier. I have quite a lot of arduino experience So i guess I will figure out how to program it.