int steps = 3; //PIN3 is connected to STEP on DRV8825
int direccion = 4; //PIN4 is connected to DIR on DRV8825
int pasos = 200; //200 steps to make a 360 degrees turn
void setup() {
  pinMode(direccion, OUTPUT);
  pinMode(steps, OUTPUT);
}
void loop() {
  digitalWrite(direccion, LOW);
  for (int i = 0; i<pasos; i++)
    {
    digitalWrite(steps, HIGH);
    delayMicroseconds(2000);
    digitalWrite(steps, LOW);
    delayMicroseconds(2000);
    }
  delay(100000);
}