High Security Keypad System

1#include <LiquidCrystal.h>   // Include LiquidCrystal library
2#include   <Keypad.h>    // Include Keypad library
3LiquidCrystal movie(A5,A4,A3,A2,A1,A0);
4#define   Password_Length 8     // Length of password + 1 for null character
5char Data[Password_Length];      // Character to hold password input
6char Master[Password_Length] = "12A34B5";    // Password
7char customKey;  // Character to hold key input
8int electric_motor   = 10;   // Pin connected to Electric Motor
9int buzzer = 11;   // Pin connected   to Buzzer
10int indicator_led = 12;   // Pin connected to Green Indicator LED
11int   k ;
12int i = 0;
13int s = 0;
14int g = 0;
15int a = 0;
16int wait = 300; //   Delay time for LED
17byte data_count = 0; // Counter for character entries
18const   byte ROWS = 4; // Constants for row sizes
19const byte COLS = 4; // Constants for   column sizes
20
21char hexaKeys[ROWS][COLS] = {  // Array to represent keys on   keypad
22{'1', '2', '3', 'A'},
23{'4', '5', '6', 'B'},
24{'7', '8', '9', 'C'},
25{'*',   '0', '#', 'D'}
26};
27
28byte rowPins[ROWS] = {9, 8, 7, 6};  // Connections to   Arduino
29byte colPins[COLS] = {5, 4, 3, 2};
30Keypad customKeypad = Keypad(makeKeymap(hexaKeys),   rowPins, colPins, ROWS, COLS); // Create keypad object
31
32void setup() {
33
34   pinMode(electric_motor, OUTPUT);  // Set Electric Motor pin as an OUTPUT pin
35   pinMode(buzzer, OUTPUT); // Set Buzzer pin as an OUTPUT pin
36  pinMode(indicator_led,   OUTPUT); // Set Green Indicator LED pin as an OUTPUT pin
37  Serial.begin(9600);     // Initialize serial communications at 9600 baud rate
38  movie.begin(16,2);   // Initialize LiquidCrystal display
39  Serial.print("Enter Password:");
40   movie.print("Enter Password:");
41  delay(1500);
42  movie.clear();
43
44}
45void   loop() {
46
47
48for(k=0;k<7 && g<1;k++)          // "For loop" for taking   Input 
49{
50  movie.setCursor(0,0);
51 movie.print("Enter Password:");
52   delay(100);
53
54 customKey = customKeypad.getKey();  // Look for keypress
55if   (customKey) {                    // Enter keypress into array and increment counter
56   Data[data_count] = customKey;
57   Serial.print(Data[data_count]);
58   
59   movie.setCursor(s,1);            // LCD Command for changing the column of second row
60   movie.print(Data[data_count]);
61   
62   digitalWrite(indicator_led,HIGH);  // Blink the green indicator LED with   every successful input
63   delay(wait);
64   digitalWrite(indicator_led,LOW);
65    delay(wait);
66
67   data_count++;
68   s++;
69}
70}
71
72
73if (data_count   == Password_Length - 1) {   // See if we have reached the password length
74 while(i<1)                                 
75{
76 Serial.println("");                      //   For sending the serial monitor's cursor in next line
77 movie.print("");
78   i++;
79}
80
81 if (!strcmp(Data, Master)) {     // Password is correct
82  
83    digitalWrite(electric_motor, HIGH);
84   digitalWrite(buzzer, LOW);
85   Serial.println("correct");
86    movie.clear();
87   movie.setCursor(0,0);
88   movie.print("The password is");
89    movie.setCursor(0,1);
90   movie.print("correct");
91   delay(1000);
92    movie.clear();
93   g=1;
94}
95else {
96
97   digitalWrite(electric_motor,   LOW);     // Password is incorrect
98   digitalWrite(buzzer,HIGH);
99   Serial.println("incorrect");
100    movie.clear();
101   movie.setCursor(0,0);
102   movie.print("The password is");
103    movie.setCursor(0,1);
104   movie.print("incorrect");
105   delay(1000);
106    movie.clear();
107   g=1;
108}
109}
110   a=1;
111}
112void clearData() {            
113while   (data_count != 0) {     // Go through array and clear data
114Data[data_count--]   = 0;
115}
116return;
117}
118

1#include <LiquidCrystal.h>   // Include LiquidCrystal library
2#include
3  <Keypad.h>    // Include Keypad library
4LiquidCrystal movie(A5,A4,A3,A2,A1,A0);
5#define
6  Password_Length 8     // Length of password + 1 for null character
7char Data[Password_Length];
8     // Character to hold password input
9char Master[Password_Length] = "12A34B5";
10   // Password
11char customKey;  // Character to hold key input
12int electric_motor
13  = 10;   // Pin connected to Electric Motor
14int buzzer = 11;   // Pin connected
15  to Buzzer
16int indicator_led = 12;   // Pin connected to Green Indicator LED
17int
18  k ;
19int i = 0;
20int s = 0;
21int g = 0;
22int a = 0;
23int wait = 300; //
24  Delay time for LED
25byte data_count = 0; // Counter for character entries
26const
27  byte ROWS = 4; // Constants for row sizes
28const byte COLS = 4; // Constants for
29  column sizes
30
31char hexaKeys[ROWS][COLS] = {  // Array to represent keys on
32  keypad
33{'1', '2', '3', 'A'},
34{'4', '5', '6', 'B'},
35{'7', '8', '9', 'C'},
36{'*',
37  '0', '#', 'D'}
38};
39
40byte rowPins[ROWS] = {9, 8, 7, 6};  // Connections to
41  Arduino
42byte colPins[COLS] = {5, 4, 3, 2};
43Keypad customKeypad = Keypad(makeKeymap(hexaKeys),
44  rowPins, colPins, ROWS, COLS); // Create keypad object
45
46void setup() {
47
48
49  pinMode(electric_motor, OUTPUT);  // Set Electric Motor pin as an OUTPUT pin
50
51  pinMode(buzzer, OUTPUT); // Set Buzzer pin as an OUTPUT pin
52  pinMode(indicator_led,
53  OUTPUT); // Set Green Indicator LED pin as an OUTPUT pin
54  Serial.begin(9600);
55    // Initialize serial communications at 9600 baud rate
56  movie.begin(16,2);
57  // Initialize LiquidCrystal display
58  Serial.print("Enter Password:");
59
60  movie.print("Enter Password:");
61  delay(1500);
62  movie.clear();
63
64}
65void
66  loop() {
67
68
69for(k=0;k<7 && g<1;k++)          // "For loop" for taking
70  Input 
71{
72  movie.setCursor(0,0);
73 movie.print("Enter Password:");
74
75  delay(100);
76
77 customKey = customKeypad.getKey();  // Look for keypress
78if
79  (customKey) {                    // Enter keypress into array and increment counter
80
81  Data[data_count] = customKey;
82   Serial.print(Data[data_count]);
83   
84   movie.setCursor(s,1);
85           // LCD Command for changing the column of second row
86   movie.print(Data[data_count]);
87
88  
89   digitalWrite(indicator_led,HIGH);  // Blink the green indicator LED with
90  every successful input
91   delay(wait);
92   digitalWrite(indicator_led,LOW);
93
94   delay(wait);
95
96   data_count++;
97   s++;
98}
99}
100
101
102if (data_count
103  == Password_Length - 1) {   // See if we have reached the password length
104 while(i<1)
105                                
106{
107 Serial.println("");                      //
108  For sending the serial monitor's cursor in next line
109 movie.print("");
110
111  i++;
112}
113
114 if (!strcmp(Data, Master)) {     // Password is correct
115  
116
117   digitalWrite(electric_motor, HIGH);
118   digitalWrite(buzzer, LOW);
119   Serial.println("correct");
120
121   movie.clear();
122   movie.setCursor(0,0);
123   movie.print("The password is");
124
125   movie.setCursor(0,1);
126   movie.print("correct");
127   delay(1000);
128
129   movie.clear();
130   g=1;
131}
132else {
133
134   digitalWrite(electric_motor,
135  LOW);     // Password is incorrect
136   digitalWrite(buzzer,HIGH);
137   Serial.println("incorrect");
138
139   movie.clear();
140   movie.setCursor(0,0);
141   movie.print("The password is");
142
143   movie.setCursor(0,1);
144   movie.print("incorrect");
145   delay(1000);
146
147   movie.clear();
148   g=1;
149}
150}
151   a=1;
152}
153void clearData() {            
154while
155  (data_count != 0) {     // Go through array and clear data
156Data[data_count--]
157  = 0;
158}
159return;
160}
161