#define IN1 8
#define IN2 9
#define IN3 10
#define IN4 11

int stepsPerRevolution = 200; 
int stepSequence[4][4] = {
  {1, 0, 1, 0}, 
  {0, 1, 1, 0}, 
  {0, 1, 0, 1}, 
  {1, 0, 0, 1}  
};

void setup() {
  pinMode(IN1, OUTPUT);
  pinMode(IN2, OUTPUT);
  pinMode(IN3, OUTPUT);
  pinMode(IN4, OUTPUT);
}

void loop() {
  for (int i = 0; i < stepsPerRevolution; i++) {
    for (int step = 0; step < 4; step++) {
      digitalWrite(IN1, stepSequence[step][0]);
      digitalWrite(IN2, stepSequence[step][1]);
      digitalWrite(IN3, stepSequence[step][2]);
      digitalWrite(IN4, stepSequence[step][3]);
      delay(100); 
    }
  }
}