#define STEP_PIN 12
#define DIR_PIN  14
#define EN_PIN   27

void setup() {
  pinMode(STEP_PIN, OUTPUT);
  pinMode(DIR_PIN, OUTPUT);
  pinMode(EN_PIN, OUTPUT);

  digitalWrite(EN_PIN, LOW);   // Aktifkan motor
}

void loop() {

  // Putar searah jarum jam
  digitalWrite(DIR_PIN, HIGH);
  for (int i = 0; i < 200; i++) {   // 200 step = 1 putaran (motor 1.8°)
    digitalWrite(STEP_PIN, HIGH);
    delayMicroseconds(800);
    digitalWrite(STEP_PIN, LOW);
    delayMicroseconds(800);
  }

  delay(1000);

  // Putar berlawanan arah jarum jam
  digitalWrite(DIR_PIN, LOW);
  for (int i = 0; i < 200; i++) {
    digitalWrite(STEP_PIN, HIGH);
    delayMicroseconds(800);
    digitalWrite(STEP_PIN, LOW);
    delayMicroseconds(800);
  }

  delay(1000);
}