Password-Secured AC Main Console

1#include <Keypad.h>
2#include <Password.h>
3
4String newPasswordString;
5char  newPassword[6];
6
7Password password = Password( "0248163264" );
8
9byte  maxPasswordLength = 10;
10byte currentPasswordLength = 0;
11const byte ROWS =  4;
12const byte COLS = 4;
13
14boolean Alpha = false;
15
16char keys[ROWS][COLS]  =
17{
18  {'0', '4', '8', 'C'},
19  {'1', '5', '9', 'D'},
20  {'2', '6', 'A',  'E'},
21  {'3', '7', 'B', 'F'}
22};
23
24byte rowPins[ROWS] = {6, 7, 8, 9};
25
26byte  colPins[COLS] = {2, 3, 4, 5};
27
28Keypad keypad = Keypad( makeKeymap(keys), rowPins,  colPins, ROWS, COLS );
29
30void setup()
31{
32  pinMode(11, OUTPUT);
33  digitalWrite(11,  LOW);
34  Serial.begin(9600);
35
36}
37
38void loop()
39{
40  char key =  keypad.getKey();
41  if (key != NO_KEY)
42  {
43    delay(60);
44    switch  (key)
45    {
46      case 'A':
47        Alpha = false;
48        Serial.println("Console  goes OFF state");
49        break;
50      case 'B': break;
51      case 'C':  break;
52      case 'D': break;
53      case 'E': checkPassword(); break;
54      case 'F': resetPassword(); break;
55      default: processNumberKey(key);
56    }
57    switch (Alpha)
58    {
59      case true : Motor__ON(); break;
60      case false : Motor__OFF(); break;
61      default: processNumberKey(key);
62    }
63  }
64}
65
66void processNumberKey(char key) {
67  Serial.print(key);
68  currentPasswordLength++;
69  password.append(key);
70  if (currentPasswordLength  == maxPasswordLength) {
71    checkPassword();
72  }
73}
74
75void checkPassword()  {
76  if (password.evaluate()) {
77    Serial.println(" OK.");
78    Alpha  = true;
79  } else {
80    Serial.println(" Wrong passwowrd!");
81    Alpha  = false;
82  }
83  resetPassword();
84}
85
86void resetPassword() {
87  password.reset();
88  currentPasswordLength = 0;
89}
90void Motor__ON()
91{
92  digitalWrite(11,  HIGH);
93}
94void Motor__OFF()
95{
96  digitalWrite(11, LOW);
97}
98