/* Arduino sketch to drive a stepper motor using the AccelStepper library.
   Runs stepper back and forth between limits. */

#include <AccelStepper.h>
const int dirPin = 3;
const int stepPin = 4;

AccelStepper myStepper(AccelStepper::DRIVER, stepPin, dirPin);

void setup()
{
  myStepper.setMaxSpeed(500.0);
  myStepper.setAcceleration(100.0);
  myStepper.moveTo(200);
}

void loop() 
{
  if (!myStepper.run()) 
  {  
    myStepper.moveTo(0);
  }
}