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Hello, I dusted off my printer to try and get it up and running again, and found that my motor control board is no longer working. I have a L298n motor controller board lying around that I've used to driver steppers before, but it requires the 4 pins on it to be activated in sequence to drive the motor, while NanoDLP seems to just send a pulse over one pin for each step. Is it possible to drive this board directly from NanoDLP, or would I need to setup a python script that took the steps from NanoDLP and translated it into the correct driver signal? Thanks for any help!
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Hi,
I am not familiar with these driver boards, but I have take a quick look at spec. If you are using that to drive stepper motors only 2 pin per motor required one for step another for direction which is the exactly same as we currently use, apparently additional enable pins are for PWM (servo) not steppers.
So I think it could be used by nanoDLP too. Be careful with logic voltage of rpi board.
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The 4 input pins actually have to driven in sequence to move the stepper, rather than there being direction and step pins.
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Unfortunately it would not be possible to support it directly. You can try python script but I am not sure if you could achieve good speed.
It could be helpful https://www.raspberrypi.org/forums/view … 49&t=55580
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Yeah, that's exactly what I was thinking, thanks!
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