You've already asked about this several times. I don't think you understand your own problem, which means you're basically grasping at solutions.I want to use a Pico/Nano I don't think it really matters I will look at the stepper libraries before I choose
I want to use the microcontroller to control the stepper and when it's in the right position in stops, sends a signal to the Pi to take a photo and then send a return signal to the microcontroller to continue stepping
I was thinking I could do it with 2 gpio's on in and one out on both boards swapped like TX&RX then just monitor the pins does this sound a good plan?
I need to use UART for other things so it would be better to limit using those ports, BUT I only need to send a boolean I think just to say in place take photo and took photo continue stepping
I don't know anything about the Nano or Pico other than they are deterministic and are better suited to stepper motor control
There's a reason no one using Pi's on 3d printers except to run a Klipper interface
Why, precisely, do you need "deterministic" stepper motor positioning? You do realise that if you drive your motors with a "deterministic" micro and send a signal back to the Pi then the Pi will take a picture in a non-deterministic fashion (oh no!).
Statistics: Posted by ame — Mon Jan 29, 2024 5:24 am