My night job today is to finish the command list and display for my own levelling system control.
The LCD display (16×2) came yesterday and today evening I connected it to an Arduino and started¬†implementing the commands and keyboard controls for the system.

Will continue working on that tonight to finish the program skeleton. I am waiting for the accelerometer to make the tilt switch and then I can put everything together. Relay output for the legs, current sensor to verify that something is actually happening, digital input for the limiter switches, this is all pretty standard functionality. The original system does not use a current sensor and is limited to identify a change in angle when grounding the legs individually, which already creates a small twist in the chassis.
Will see if I can get that any better. Anyway .. so far it does not look too hard.