/*
  Forum: https://forum.arduino.cc/t/stepper-motor-cancellation/1213693
  Wokwi: https://wokwi.com/projects/387470045236839425
*/

#include <Stepper.h>

int stepsPerRevolution = 2048;
int motSpeed = 50;
int dt = 500;

const byte button1Pin = 6;
const byte button2Pin = 7;
int motDir = 1;

Stepper myStepper(stepsPerRevolution, 2, 4, 3, 5);

void setup()
{
  Serial.begin(115200);
  myStepper.setSpeed(motSpeed);
  pinMode(button1Pin, INPUT_PULLUP);
  pinMode(button2Pin, INPUT_PULLUP);

}

byte runStepper = true;

void loop()
{
  if (digitalRead(button2Pin) == LOW) {
    runStepper = true;
  }
  while (runStepper) {
    myStepper.step(motDir * 1);
    delayMicroseconds(dt);
    if (limitSwitch()) {
      runStepper = false;
    }
  }
}

boolean limitSwitch() {
  static unsigned long lastChange = 0;
  static byte lastState = HIGH;
  static byte state = HIGH;
  byte actState = digitalRead(button1Pin);
  if (actState != lastState) {
    lastChange = millis();
    lastState = actState;
  }
  if (state != actState && millis() - lastChange > 20 ) {
    state = actState;
    Serial.println(state);
    return state;
  }

  return false;

}