do not give signs of life stepper motors with this board. I think I just got the links wrong. On scooters the phases are right lateral with left central and left side with right center, then black, green, blue, red on the board. I tried other combinations. Sometimes I think I haven't been consistent with all the steppers. Maybe this sends something in bulk. But they never receive impulses. I checked the endstops, which work. What am I doing wrong?