#include "A4988_lib.h"

const int dirPin = 2; 
const int stepPin = 3; 
const int stepsPerRevolution = 200; 

MotorDriver stepper (dirPin, stepPin);

void setup()
{
  pinMode(stepPin, OUTPUT); 
  pinMode(dirPin, OUTPUT);
}

void loop() {
  
  stepper.setSpeed(50);
  stepper.step(stepsPerRevolution);

  delay(1000);

  stepper.setSpeed(200);
  stepper.step(-stepsPerRevolution);

  delay(1000);

}