Stepper Motor Back and Forth

Stepper Motor Back and Forth

// tutorial 
// https://www.makerguides.com/a4988-stepper-motor-driver-arduino-tutorial/

#include <AccelStepper.h>

// Define stepper motor connections and motor interface type. Motor interface type must be set to 1 when using a driver:
#define dirPin 2
#define stepPin 3
#define motorInterfaceType 1

// Create a new instance of the AccelStepper class:
AccelStepper stepper = AccelStepper(motorInterfaceType, stepPin, dirPin);


void setup() {
  // Set the maximum speed in steps per second:
  stepper.setMaxSpeed(50);
}


void loop() { 
  // Set the current position to 0:
  stepper.setCurrentPosition(0);

  while(stepper.currentPosition() != 30)
  {
    stepper.setSpeed(25);
    stepper.runSpeed();
  }

  delay(200);


  // Reset the position to 0:
  stepper.setCurrentPosition(0);
  // go the other direction
  while(stepper.currentPosition() != -30)
    {
      stepper.setSpeed(-25);
      stepper.runSpeed();
    }

  delay(200);
}