const int BUTTON_PIN = 4;
const int DIR = 3;
const int STEP = 2;
const int  SPR = 200;  // stepsperrev

 // Arduinopinconnected to button's pin

                        // variables will change:
                        // the current state of LED
int lastButtonState;    // the previous state of button
int currentButtonState; // the current state of button

void setup() {
  Serial.begin(9600);               // initialize serial
  pinMode(STEP, OUTPUT);
  pinMode(DIR, OUTPUT);
  pinMode(BUTTON_PIN, INPUT_PULLUP);//set arduino pin to input pull-up mode
 
  currentButtonState = digitalRead(BUTTON_PIN);
}

void loop() {
  lastButtonState    = currentButtonState;// save the last state
  currentButtonState = digitalRead(BUTTON_PIN);//read new state
  digitalWrite(DIR, HIGH);
  

 if(lastButtonState == HIGH && currentButtonState == LOW) {
    Serial.println("The button is pressed");

      for(int i = 0; i<SPR; i++)
  {
    digitalWrite(STEP, HIGH);
    delayMicroseconds(2000);
    digitalWrite(STEP, LOW);
    delayMicroseconds(2000);
  }
  delay(1000); 
  }
}