#include <Keypad.h>
#include <AccelStepper.h>

// Keypad configuration
const byte ROWS = 4; // Four rows
const byte COLS = 4; // Four columns

char keys[ROWS][COLS] = {
  {'1','2','3','A'},
  {'4','5','6','B'},
  {'7','8','9','C'},
  {'*','0','#','D'}
};

byte rowPins[ROWS] = {2, 3, 4, 5}; // Row pin numbers
byte colPins[COLS] = {6, 7, 8, 9}; // Column pin numbers

Keypad keypad = Keypad(makeKeymap(keys), rowPins, colPins, ROWS, COLS);

// Motor driver configuration
#define dirPin 11
#define stepPin 10
#define enablePin 12

AccelStepper stepper(AccelStepper::DRIVER, stepPin, dirPin);

void setup() {
  Serial.begin(9600);
  pinMode(enablePin, OUTPUT);
  digitalWrite(enablePin, LOW); // Enable motor driver

  stepper.setMaxSpeed(2000); // Set maximum speed in steps per second
  stepper.setAcceleration(1000); // Set acceleration
}

void loop() {
  char key = keypad.getKey();
  
  if (key) {
    Serial.println(key);
    int speed = 0;
    
    switch(key) {
      case '1':
        speed = 500; // Set speed for key '1'
        break;
      case '2':
        speed = 1000; // Set speed for key '2'
        break;
      case '3':
        speed = 1500; // Set speed for key '3'
        break;
      default:
        speed = 0; // Stop the motor for other keys
        break;
    }
    
    stepper.setSpeed(speed);
  }
  
  stepper.runSpeed(); // Run the motor at the set speed
}