Creating a password that needs to be entered through buttons to activate a servo motor

Projects General Guidance
9

The code using Bounce2 library.

#include <Bounce2.h>                                       // include the Bounce2 library

const int buttonPin[] = { 2, 3, 4, 5, 6, 7 };              // array of button pins connected to digital pins 2, 3, 4, 5, 6 and 7
Bounce button[6];                                          // array of Bounce objects for each button
int buttonCount[6] = { 0 };                                // array to store the number of button presses
const int numberOfButtons = 6;                             // number of buttons
const int password[] = { 1, 2, 3, 4 };                     // password array
int passwordSize = sizeof(password) / sizeof(password[0]); // size of the password array
bool isCorrect = false;                                    // variable to store if the password is correct
const int maxCount = 9;                                    // maximum button count value

void setup()
{
  for (int i = 0; i < numberOfButtons; i++)
  {
    button[i].attach(buttonPin[i], INPUT_PULLUP); // attach each button to its pin with pullup
    button[i].interval(5);                        // set debounce interval to 5
  }
  Serial.begin(9600);                             // initialize serial communication
}

void loop()
{
  for (int i = 0; i < numberOfButtons - 2; i++)
  {
    button[i].update();
    if (button[i].fell())    // if button is pressed
    {
      buttonCount[i]++;      // increment the button press count
      if (buttonCount[i] > maxCount)
      {
        buttonCount[i] = 0;  // reset button count to 0 if it exceeds maxCount
      }
      Serial.print("Button ");
      Serial.print(i + 1);
      Serial.print(" Press Count: ");
      Serial.println(buttonCount[i]);  // print the current button press count to the serial monitor
    }
  }

  // Check the penultimate button for password check
  button[numberOfButtons - 2].update();

  if (button[numberOfButtons - 2].fell())
  {
    // compare the buttonCount array with the password array
    for (int i = 0; i < passwordSize; i++)
    {
      if (buttonCount[i] == password[i])
      {
        isCorrect = true;
      }
      else
      {
        isCorrect = false;
        break;
      }
    }
    if (isCorrect)
    {
      Serial.println("Correct Password!");
    }
    else
    {
      Serial.println("Wrong Password!");
    }
    // Reset buttonCount and isCorrect
    for (int i = 0; i < numberOfButtons - 2; i++)
    {
      buttonCount[i] = 0;
    }
    isCorrect = false;
  }

// Check the last button for resetting the buttonCount array
  button[numberOfButtons - 1].update();

  if (button[numberOfButtons - 1].fell())
  {
    for (int i = 0; i < numberOfButtons - 2; i++)
    {
      buttonCount[i] = 0;
    }
    Serial.println("Button Counts Reset!");
  }
}