#include <AccelStepper.h>
/*Make sure to include the AccelStepper library in your
Arduino IDE before uploading this code to your Arduino UNO.
 You can install it via the Library Manager in the Arduino
IDE by searching for "AccelStepper".
This code assumes that the potentiometer is connected to
analog pin A0, and the STEP and DIR pins of the A4988 stepper
 motor driver are connected to digital pins 2 and 3,
 respectively. Adjust the pin numbers in the code if your 
 wiring is different.
The setMaxSpeed and setAcceleration functions define the 
maximum speed and acceleration for the stepper motor. 
You may need to adjust these values based on your specific 
stepper motor's capabilities and your application's 
requirements.
The map function is used to convert the potentiometer's 
analog reading (which ranges from 0 to 1023) to a speed 
value that is suitable for the stepper motor. The range of 
the mapped values should be set according to the stepper 
motor's specifications and the desired speed range.
The runSpeed function moves the motor at the speed set by 
the setSpeed function, which is determined by the 
potentiometer's position.*/
// Define the stepper motor connections
#define STEP_PIN 2
#define DIR_PIN 3

// Define the potentiometer input pin
#define POT_PIN A0

// Create an instance of the AccelStepper class
AccelStepper stepper(AccelStepper::DRIVER, STEP_PIN, DIR_PIN);

void setup() {
  // Set the maximum speed and acceleration:
  stepper.setMaxSpeed(1000); // Maximum speed in steps per second
  stepper.setAcceleration(500); // Acceleration in steps per second squared
}

void loop() {
  // Read the potentiometer value
  int potValue = analogRead(POT_PIN);
  
  // Map the potentiometer value to a speed range
  // The range here is 0 to the maximum speed set in setup()
  // You can adjust the range to suit your stepper motor's specifications
  int motorSpeed = map(potValue, 0, 1023, 0, 1000);
  
  // Set the speed of the motor
  stepper.setSpeed(motorSpeed);
  
  // Move the motor with constant speed as set by the potentiometer
  stepper.runSpeed();
}