/*
 * Created by ArduinoGetStarted.com
 *
 * This example code is in the public domain
 *
 * Tutorial page: https://arduinogetstarted.com/tutorials/arduino-stepper-motor-and-limit-switch
 */

#include <ezButton.h>
#include <AccelStepper.h>

#define MAX_POSITION 0x7FFFFFFF // maximum of position we can set (long type)

ezButton limitSwitch(A0); // create ezButton object that attach to pin A0;
ezButton limitSwitch1(A1); // create ezButton object that attach to pin A1;
AccelStepper stepper(1, 2, 3);

bool stopForward = false;
bool stopBackward=false;

void setup() {
  Serial.begin(9600);

  limitSwitch.setDebounceTime(50); // set debounce time to 50 milliseconds
 limitSwitch1.setDebounceTime(10); // set debounce time to 50 milliseconds

  stepper.setMaxSpeed(500.0);   // set the maximum speed
  stepper.setAcceleration(50.0); // set acceleration
  stepper.setSpeed(100);         // set initial speed
  stepper.setCurrentPosition(0); // set position

  stepper.moveTo(MAX_POSITION);
}

void loop() {
  limitSwitch.loop(); // MUST call the loop() function first
    limitSwitch1.loop(); // MUST call the loop() function first
  if (limitSwitch.isPressed()) {
    Serial.println(F("The limit switch: TOUCHED"));
    stopForward = true;
      
  } else if (limitSwitch1.isPressed()) {
    Serial.println(F("The limit switch: TOUCHED AGAIN"));
    stopBackward = true;
      
  }

  if (stopForward == false) {

    // without this part, the move will stop after reaching maximum position
    if (stepper.distanceToGo() == 0) { // if motor moved to the maximum position
      stepper.setCurrentPosition(0);   // reset position to 0
      stepper.moveTo(MAX_POSITION);       // move the motor to maximum position again
    }  else 
  {
        Serial.println(F("The stepper motor is STOPPED AGAIN"));

  }
     if (stopBackward == false) {
    // without this part, the move will stop after reaching maximum position
    if (stepper.distanceToGo() != 0) { // if motor moved to the maximum position
      stepper.setCurrentPosition(0);   // reset position to 0
     stepper.moveTo(-MAX_POSITION);        // move the motor to maximum position again
    //stepper.run();
    }

    stepper.run(); // MUST be called in loop() function
  } 
  else 
  {
        Serial.println(F("The stepper motor is STOPPED AGAIN"));

  }
}
}