#include <AccelStepper.h>

// Define step constant
#define MotorInterfaceType 4

// Creates an instance
// Pins entered in sequence IN1-IN3-IN2-IN4 for proper step sequence
AccelStepper myStepper(MotorInterfaceType, 8, 10, 9, 11);

// Define the pin for the pushbutton
#define buttonPin 2

// Variable to store the state of the button
int buttonState = 0;

void setup() {
  // Initialize serial communication
  Serial.begin(9600);
  
  // set the maximum speed, acceleration factor,
  // initial speed and the target position
  myStepper.setMaxSpeed(1000.0);
  myStepper.setAcceleration(50.0);
  myStepper.setSpeed(200);
  myStepper.moveTo(2038);

  // Wait for serial connection
  while (!Serial) {
    ; // Do nothing
  }

  // Print initialization message
  Serial.println("Stepper motor initialized.");

  // Set the button pin as input
  pinMode(buttonPin, INPUT_PULLUP);
}

void loop() {
  // Read the state of the button
  buttonState = digitalRead(buttonPin);

  // Change direction if the button is pressed
  if (buttonState == LOW) {
    myStepper.moveTo(-myStepper.currentPosition());
    Serial.println("Changing direction.");
  }

  // Move the motor one step
  myStepper.run();

  // Print current position to serial monitor
  Serial.print("Current position: ");
  Serial.print(myStepper.currentPosition());
// Print the current speed and direction to the serial monitor
  Serial.print(", Speed: ");
  Serial.println(myStepper.speed());
  
  // Delay for 1 second before moving again
  delay(1000);
}