@cairnus how to mark text as code:
Start a blank line with three back-quotes ` (upper left of the keyboard, below the tilde)
#include <AccelStepper.h>
int pin_en = 5;
int pin_direction = 7;
int pin_step = 6;
int pin_reset = 39;
int pin_voltage = 8;
int pin_fault = 38;
int microstep = 1;
end with a blank line and three back-quotes as well.
cheers!