/*#define MS1 2
#define MS2 3
#define MS3 4*/
#define dir 5
#define step 6

void setup() {
pinMode(dir,OUTPUT);
pinMode(step,OUTPUT);
Serial.begin(9600);
}

void loop() {
  digitalWrite(dir, HIGH);

  for(int a=0; a<=200; a++);
 {
  Serial.println("a");
  digitalWrite(step, HIGH);
  delay(1);
  digitalWrite(step, LOW);
  delay(1);}
  //exit(0);
  delay(1000);
}