Yes, you can use IBT2, but the Cytron MD13S is what the pcb was designed around. The code works very well with Cytron and Danfoss.
Yes again, those model valves have a PVES head with four wires. connect 12v to Udc, PWM from cytron to Us, And ground to the ground(from the PCB ground, not the tractor)
4th is feedback for Deere system, and not used for AOG.
There is a pinout maybe on discourse, and i think a good picture of the pinout in the wiki.
https://discourse.agopengps.com/uploads/short-url/zkbOeRhrFo28jHZm8EVkE8StMXk.txt
This is the code we modified to work with cytron.
Spend a little time reading this post, it will clear a lot up.