Teste para motor de passo, girando 50 passos num sentido depois 50 no sentido contrário

teste_vai_e_volta.ino

#include <Stepper.h>

const int stepsPerRevolution = 200;  // change this to fit the number of steps per revolution
// for your motor

// initialize the stepper library on pins 8 through 11:
Stepper myStepper(stepsPerRevolution, 2, 3, 4, 5);

int stepCount = 0;         // number of steps the motor has taken

void setup() {
  // initialize the serial port:
  myStepper.setSpeed(300);
  pinMode(10,OUTPUT);
  pinMode(9,OUTPUT);
  delay(1000);
}

void loop() {
  digitalWrite(9, HIGH);  // Enable 1 do driver
  digitalWrite(10, HIGH); // Enable 2 do driver
  // 50 passos:
  while
  myStepper.step(50);
  delay(500);
  myStepper.step(-50);
  delay(3000);
}