- Sun Nov 19, 2023 9:25 pm #65869
PSIG wrote: ↑Sun Nov 19, 2023 9:08 pm I would test independently first, to confirm operation. At least connecting for homing independently, so it has full and correct authority with the throttle stops for now.I plugged the stepper driver board into the NO2C after viewing the image using the link below... to ascertain which way the board plugs into the NO2C.
I then set up Stepper Idle control on Tuner Studio to enable use of the stepper motor.
I turned on the NO2C and nothing happened so I started the engine, still with no connection to steppers. Engine still ran.
I then tested the output of the stepper A1-A2 and got 0.5V.
I ran the NO2C through a few power ons testing the output of the stepper driver with the same result - No drive to the stepper motor connections A1 & A2.
I then swapped out the driver board for a second board on the off-chance the first was faulty.
On power-up I noticed the smoke come out of this one so no doubt the first has suffered the same fate.
I then thought I'd look at further pictures of the NO2C online as I would walk ten miles to not have to look at the schematic on github to check it against the physical board.
it seems the GND connection on the stepper board must be connected to the pin at the edge of the NO2C board. I can't see any designation information anywhere and there is very little printed on the NO2C board except GND.
Can anyone tell me if the driver board in picture attached is correctly oriented?
LINK TO PICTURE: https://i.ytimg.com/vi/2ty8RvaTWjM/maxresdefault.jpg