• Arduino UNO
• Arduino IDE
• ステッピングモータの原理

// ピン定義。
#define PIN_MS0 13
#define PIN_MS1 12
#define PIN_MS2 11
#define PIN_EN 10
#define PIN_STEP 9
#define PIN_DIR 8
#define PIN_RST 7
#define stepsPerRevolution 200  //1ステップ1.8度の場合
#define microstep 256
#define reductionratio  720     //減速比
#define DELAY 1
//#define DELAY 2000
/*
 * MS2 MS1 MS0
 * 0   0   0    full step
 * 0   0   1    1/2 step
 * 0   1   0    1/4 step
 * 0   1   1    1/8 step
 * 1   0   0    1/16 step
 * 1   0   1    1/32 step
 * 1   1   0    1/128 step
 * 1   1   1    1/256 step
 */

void setup() {
  // put your setup code here, to run once:
  pinMode(PIN_EN, OUTPUT);
  pinMode(PIN_STEP, OUTPUT);
  pinMode(PIN_DIR, OUTPUT);

  delay(500);
  digitalWrite(PIN_MS0, HIGH);
  digitalWrite(PIN_MS1, HIGH);
  digitalWrite(PIN_MS2, HIGH);
  digitalWrite(PIN_EN, HIGH);
  digitalWrite(PIN_DIR, LOW);
  digitalWrite(PIN_RST, HIGH);
  Serial.begin(9600);
  delay(500);
}

void loop() {
  // put your main code here, to run repeatedly:
  Serial.println("時計回り");
  digitalWrite(PIN_DIR, LOW);
  for (int i = 0; i < stepsPerRevolution; i++) {
    for (int j = 0; j < reductionratio; j++) {
      for (int k = 0; k < microstep; k++) {
        digitalWrite(PIN_STEP, HIGH);
        delayMicroseconds(DELAY);
        digitalWrite(PIN_STEP, LOW);
        delayMicroseconds(DELAY);
      }
    }
  }
  delay(1000);
  Serial.println("反時計回り");
  digitalWrite(PIN_DIR, HIGH);
  for (int i = 0; i < stepsPerRevolution; i++) {
    for (int j = 0; j < reductionratio; j++) {
      for (int k = 0; k < microstep; k++) {
        digitalWrite(PIN_STEP, HIGH);
        delayMicroseconds(DELAY);
        digitalWrite(PIN_STEP, LOW);
        delayMicroseconds(DELAY);
      }
    }
  }
  delay(1000);
}