#include <Arduino.h>

const int stepPin = 18; /* SHCP */
const int dirPin = 19; /* STCP */


// 电机正转
void forward(unsigned long STEPS_PER_REV)
{
  unsigned int delayTime = 2000;

  // 设置电机顺时针旋转
  digitalWrite(dirPin, LOW);

  // 电机慢速旋转
  for (int x = 0; x < STEPS_PER_REV; x++)
  {
    digitalWrite(stepPin, HIGH);
    delayMicroseconds(delayTime);
    digitalWrite(stepPin, LOW);
    delayMicroseconds(delayTime);
  }
}

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

void loop()
{
  forward(200);
  delay(1000);
}