#include <Stepper.h> 
#define STEPS 200
// Define stepper motor connections and motor interface type. 
Stepper stepper(STEPS, 2, 3);
// Pin 2 connected to DIRECTION & Pin 3 connected to STEP Pin of Driver
#define motorInterfaceType 1
// Motor interface type must be set to 1 when using a driver
int forwardSteps = 100;
int backwardSteps = -200;
void setup() {
  // Set the maximum speed in steps per second:
  stepper.setSpeed(1000);
}
void loop() {
  stepper.step(forwardSteps);
  // delay(50);
  stepper.step(forwardSteps);
  // delay(50);
  stepper.step(backwardSteps);
  delay(2000);
}