#include <AccelStepper.h>
#include <LiquidCrystal.h>

// Define stepper motor connections and motor interface type
#define DIR_PIN 11
#define STEP_PIN 12
#define MOTOR_INTERFACE_TYPE 1

// Define potentiometer pin
#define POT_PIN A0

// LCD connections
const int rs = 10, en = 9, d4 = 8, d5 = 7, d6 = 6, d7 = 5;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);

// Create a new instance of the AccelStepper class
AccelStepper stepper(MOTOR_INTERFACE_TYPE, STEP_PIN, DIR_PIN);

unsigned long lastUpdateTime = 0;
const unsigned long updateInterval = 500; // LCD and serial update interval in ms

void setup() {
  // Set the maximum speed and acceleration
  stepper.setMaxSpeed(1000); // Adjust as needed
  stepper.setAcceleration(500); // Adjust as needed

  // Initialize the LCD
  lcd.begin(16, 2);

  // Start the serial communication
  Serial.begin(9600);

  // Initial LCD display
  lcd.setCursor(0, 0);
  lcd.print("Pot: ");
  lcd.setCursor(0, 1);
  lcd.print("Speed: ");
}

void loop() {
  // Read the potentiometer value (0 to 1023)
  int potValue = analogRead(POT_PIN);

  // Map the potentiometer value to a speed range
  float speed = map(potValue, 0, 1023, 0, 1000); // Speed in steps per second

  // Set the motor speed
  stepper.setSpeed(speed);

  // Run the motor at the set speed
  stepper.runSpeed(); // Non-blocking function to run the motor at constant speed

  // Update LCD and serial output periodically
  if (millis() - lastUpdateTime >= updateInterval) {
    lastUpdateTime = millis();

    // Update LCD display
    lcd.setCursor(5, 0);
    lcd.print(potValue);    // Update potentiometer value on LCD
    lcd.setCursor(7, 1);
    lcd.print(speed);       // Update speed value on LCD
    lcd.print("    ");      // Clear any leftover characters

    // Print to serial monitor
    //Serial.print("Potentiometer: ");
    //Serial.print(potValue);
   // Serial.print(" | Speed: ");
   // Serial.println(speed);
  }
}