#include <Stepper.h>

#define LEDPIN 13
#define BUTTONPINSTART 2
#define BUTTONPINSTOP 3

uint32_t lastMillis;
const int stepsPerRevolution = 200;

Stepper myStepper(stepsPerRevolution, 8, 9, 10, 11);

void setup() {
  // put your setup code here, to run once:
  pinMode(LEDPIN, OUTPUT);
  pinMode(BUTTONPINSTART, INPUT_PULLUP);
  pinMode(BUTTONPINSTOP, INPUT_PULLUP);

  myStepper.setSpeed(1);
}

void loop() {
  // put your main code here, to run repeatedly:
  int buttonState = digitalRead(BUTTONPINSTART);
  bool blinking = true;

  if (buttonState == LOW) {
    while (buttonState == LOW) {
      buttonState = digitalRead(BUTTONPINSTART);
    }

    bool keepgoing = true;

    while (keepgoing) {
      int buttonState2 = digitalRead(BUTTONPINSTOP);
      if (buttonState2 == LOW) {
        while (buttonState2 == LOW) {
          buttonState2 = digitalRead(BUTTONPINSTOP);
        }
        keepgoing = false;
      }

      if (millis() - lastMillis > 1000) {
        lastMillis = millis();

        if (blinking) {
          digitalWrite(LEDPIN, HIGH);
        }
        else {
          digitalWrite(LEDPIN, LOW);
        }
        myStepper.step(1);
        blinking = !blinking;
      }
    }
    digitalWrite(LEDPIN, LOW);
  }
}