Running stepper motor for specified no. of turns with Arduino? I hope you are doing well.
I want to run a pretty big stepper motor for a specified number of turns, take, for instance, 25. Easy! But not for a beginner with Arduino and I'm not an electrician!
Here is my purpose once again: Rotate my stepper motor for 25 rounds at the maximum speed possible.
Here is a similar circuit that I found on the internet. If you ignore the potentiometer, that would be my circuit!

I think my purpose in kind of simple. But I don't know anything about the code. I would appreciate any advice or helpful complementary code! :)
Here's a post that will get you started.  It uses a Teensy 3.5, but the motor driver code will be the same. You will also need to modify the low-level driver functions to match with the actual motor driver module being used.  However, if you use a Teensy 3.5 and the L298N motor driver, you should be able to use the program with little or no modifications.