// INCLUDES
#include <Stepper.h>

// CONSTANTS
const int X_PIN = A0;
const int MOTOR_PIN_1 = 9;
const int MOTOR_PIN_2 = 10;
const int MOTOR_PIN_3 = 11;
const int STEP_PIN = 12;
const int DIR_PIN = 7;
const int STEPS_PER_REVOLUTION = 800;

// VARIABLES
int sensorVal, motorSpeed;
Stepper myStepper = Stepper(STEPS_PER_REVOLUTION, STEP_PIN, DIR_PIN);

void setup() { /* nothing to setup!! */}

void loop() {
  sensorVal = analogRead(X_PIN); // read Joystick input

  // set motor speed accordingly and step the motor
  if(sensorVal < 470) {
    motorSpeed = map(sensorVal, 0, 470, 60, 0);
    myStepper.setSpeed(motorSpeed);
    myStepper.step(1);
  } else if(sensorVal > 550) {
    motorSpeed = map(sensorVal, 550, 1023, 0, 60);
    myStepper.setSpeed(motorSpeed);
    myStepper.step(-1);
  } else motorSpeed = 0;
}