kl25z secure keypad 4x4 keypad with multiple passwords,users, and outputs. (buzzer)
Dependencies: mbed TextLCD Keypad
main.cpp@1:5461144fd540, 2018-04-26 (annotated)
- Committer:
- habusaq
- Date:
- Thu Apr 26 18:44:07 2018 +0000
- Revision:
- 1:5461144fd540
- Parent:
- 0:93cb8707aa8c
- Child:
- 2:30db7d0108c1
KEYPAD
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
habusaq | 0:93cb8707aa8c | 1 | #include "mbed.h" |
habusaq | 0:93cb8707aa8c | 2 | #include "Keypad.h" |
habusaq | 0:93cb8707aa8c | 3 | #include "TextLCD.h" |
habusaq | 0:93cb8707aa8c | 4 | Keypad kpad(PTC8, PTC1, PTB19, PTB18, PTC5, PTC7, PTC0, PTC9); |
habusaq | 0:93cb8707aa8c | 5 | Serial pc(USBTX, USBRX); |
habusaq | 0:93cb8707aa8c | 6 | TextLCD lcd(PTA1, PTB23, PTA2, PTC2, PTC3, PTC12, TextLCD::LCD16x2); |
habusaq | 0:93cb8707aa8c | 7 | /* |
habusaq | 0:93cb8707aa8c | 8 | col1, col2, col3, col4, |
habusaq | 0:93cb8707aa8c | 9 | row1, row2, row3, row4 |
habusaq | 0:93cb8707aa8c | 10 | */ |
habusaq | 0:93cb8707aa8c | 11 | |
habusaq | 0:93cb8707aa8c | 12 | const int number_of_chars = 4; |
habusaq | 0:93cb8707aa8c | 13 | const char pass_user1[number_of_chars] = {'1','2','3','A'}; //HA |
habusaq | 0:93cb8707aa8c | 14 | const char pass_user2[number_of_chars] = {'2','2','3','A'}; //FA |
habusaq | 0:93cb8707aa8c | 15 | const char pass_user3[number_of_chars] = {'5','2','3','A'}; //AA |
habusaq | 0:93cb8707aa8c | 16 | const char pass_user4[number_of_chars] = {'6','2','3','A'}; //MA |
habusaq | 0:93cb8707aa8c | 17 | const char pass_user5[number_of_chars] = {'7','2','3','A'}; //FF |
habusaq | 0:93cb8707aa8c | 18 | |
habusaq | 0:93cb8707aa8c | 19 | char enterd_pass[number_of_chars] = {' ', ' ',' ',' '}; |
habusaq | 0:93cb8707aa8c | 20 | |
habusaq | 0:93cb8707aa8c | 21 | DigitalOut led_red(LED_RED); |
habusaq | 0:93cb8707aa8c | 22 | DigitalOut led_green(LED_GREEN); |
habusaq | 0:93cb8707aa8c | 23 | DigitalOut active_buzzer(PTC4); //Buzzer on pin PTC4=D9 |
habusaq | 0:93cb8707aa8c | 24 | |
habusaq | 1:5461144fd540 | 25 | PwmOut beep(PTC4); // buzzer |
habusaq | 0:93cb8707aa8c | 26 | |
habusaq | 0:93cb8707aa8c | 27 | //Serial pc(USBTX, USBRX); |
habusaq | 0:93cb8707aa8c | 28 | |
habusaq | 0:93cb8707aa8c | 29 | int main() |
habusaq | 0:93cb8707aa8c | 30 | { |
habusaq | 0:93cb8707aa8c | 31 | char key; |
habusaq | 0:93cb8707aa8c | 32 | int i; |
habusaq | 0:93cb8707aa8c | 33 | int user_index1=0; |
habusaq | 0:93cb8707aa8c | 34 | int user_index2=0; |
habusaq | 0:93cb8707aa8c | 35 | int user_index3=0; |
habusaq | 0:93cb8707aa8c | 36 | int user_index4=0; |
habusaq | 0:93cb8707aa8c | 37 | int user_index5=0; |
habusaq | 0:93cb8707aa8c | 38 | |
habusaq | 0:93cb8707aa8c | 39 | int released =1;; |
habusaq | 0:93cb8707aa8c | 40 | |
habusaq | 0:93cb8707aa8c | 41 | |
habusaq | 0:93cb8707aa8c | 42 | led_green = 0; |
habusaq | 0:93cb8707aa8c | 43 | led_red = 0; |
habusaq | 0:93cb8707aa8c | 44 | active_buzzer = 0; |
habusaq | 0:93cb8707aa8c | 45 | |
habusaq | 1:5461144fd540 | 46 | beep.period(0.001); |
habusaq | 0:93cb8707aa8c | 47 | |
habusaq | 0:93cb8707aa8c | 48 | lcd.cls(); |
habusaq | 0:93cb8707aa8c | 49 | wait(0.001); |
habusaq | 0:93cb8707aa8c | 50 | |
habusaq | 0:93cb8707aa8c | 51 | |
habusaq | 0:93cb8707aa8c | 52 | |
habusaq | 0:93cb8707aa8c | 53 | while(true) { |
habusaq | 0:93cb8707aa8c | 54 | |
habusaq | 0:93cb8707aa8c | 55 | lcd.locate(0,0); // col, row |
habusaq | 0:93cb8707aa8c | 56 | lcd.printf("Enter Password:"); |
habusaq | 0:93cb8707aa8c | 57 | |
habusaq | 0:93cb8707aa8c | 58 | // Reading the password characters |
habusaq | 0:93cb8707aa8c | 59 | for(i=0; i<number_of_chars; i++) { |
habusaq | 0:93cb8707aa8c | 60 | key = kpad.ReadKey(); |
habusaq | 0:93cb8707aa8c | 61 | |
habusaq | 0:93cb8707aa8c | 62 | if(key == '\0') |
habusaq | 0:93cb8707aa8c | 63 | released = 1; //set the flag when all keys are released |
habusaq | 0:93cb8707aa8c | 64 | if((key != '\0') && (released == 1)) { //if a key is pressed AND previous key was released |
habusaq | 0:93cb8707aa8c | 65 | enterd_pass[i]=key; |
habusaq | 0:93cb8707aa8c | 66 | lcd.locate(i,1); // col, row |
habusaq | 0:93cb8707aa8c | 67 | lcd.printf("*"); |
habusaq | 0:93cb8707aa8c | 68 | |
habusaq | 0:93cb8707aa8c | 69 | released = 0; //clear the flag to indicate that key is still pressed |
habusaq | 0:93cb8707aa8c | 70 | } |
habusaq | 0:93cb8707aa8c | 71 | else |
habusaq | 0:93cb8707aa8c | 72 | i--; |
habusaq | 0:93cb8707aa8c | 73 | |
habusaq | 0:93cb8707aa8c | 74 | |
habusaq | 0:93cb8707aa8c | 75 | |
habusaq | 0:93cb8707aa8c | 76 | } |
habusaq | 0:93cb8707aa8c | 77 | |
habusaq | 0:93cb8707aa8c | 78 | wait(0.5); |
habusaq | 0:93cb8707aa8c | 79 | |
habusaq | 0:93cb8707aa8c | 80 | lcd.locate(0,1); // col, row |
habusaq | 0:93cb8707aa8c | 81 | lcd.printf(" " ); |
habusaq | 0:93cb8707aa8c | 82 | |
habusaq | 0:93cb8707aa8c | 83 | // comparing passwords |
habusaq | 0:93cb8707aa8c | 84 | |
habusaq | 0:93cb8707aa8c | 85 | ///////// user 1 /////////////// |
habusaq | 0:93cb8707aa8c | 86 | for(i=0; i<number_of_chars; i++) { |
habusaq | 0:93cb8707aa8c | 87 | if( enterd_pass[i] == pass_user1[i] ) { |
habusaq | 0:93cb8707aa8c | 88 | user_index1 = 1; |
habusaq | 0:93cb8707aa8c | 89 | } else { |
habusaq | 0:93cb8707aa8c | 90 | user_index1 = 0; |
habusaq | 0:93cb8707aa8c | 91 | break; |
habusaq | 0:93cb8707aa8c | 92 | } |
habusaq | 0:93cb8707aa8c | 93 | } |
habusaq | 0:93cb8707aa8c | 94 | |
habusaq | 0:93cb8707aa8c | 95 | |
habusaq | 0:93cb8707aa8c | 96 | |
habusaq | 0:93cb8707aa8c | 97 | ///////// user 2 /////////////// |
habusaq | 0:93cb8707aa8c | 98 | for(i=0; i<number_of_chars; i++) { |
habusaq | 0:93cb8707aa8c | 99 | if( enterd_pass[i] == pass_user2[i] ) { |
habusaq | 0:93cb8707aa8c | 100 | user_index2 = 2; |
habusaq | 0:93cb8707aa8c | 101 | } else { |
habusaq | 0:93cb8707aa8c | 102 | user_index2 = 0; |
habusaq | 0:93cb8707aa8c | 103 | break; |
habusaq | 0:93cb8707aa8c | 104 | } |
habusaq | 0:93cb8707aa8c | 105 | } |
habusaq | 0:93cb8707aa8c | 106 | ///////// user 3 /////////////// |
habusaq | 0:93cb8707aa8c | 107 | for(i=0; i<number_of_chars; i++) { |
habusaq | 0:93cb8707aa8c | 108 | if( enterd_pass[i] == pass_user3[i] ) { |
habusaq | 0:93cb8707aa8c | 109 | user_index3 = 3; |
habusaq | 0:93cb8707aa8c | 110 | } else { |
habusaq | 0:93cb8707aa8c | 111 | user_index3 = 0; |
habusaq | 0:93cb8707aa8c | 112 | break; |
habusaq | 0:93cb8707aa8c | 113 | } |
habusaq | 0:93cb8707aa8c | 114 | } |
habusaq | 0:93cb8707aa8c | 115 | ///////// user 4 /////////////// |
habusaq | 0:93cb8707aa8c | 116 | for(i=0; i<number_of_chars; i++) { |
habusaq | 0:93cb8707aa8c | 117 | if( enterd_pass[i] == pass_user4[i] ) { |
habusaq | 0:93cb8707aa8c | 118 | user_index4 = 4; |
habusaq | 0:93cb8707aa8c | 119 | } else { |
habusaq | 0:93cb8707aa8c | 120 | user_index4 = 0; |
habusaq | 0:93cb8707aa8c | 121 | break; |
habusaq | 0:93cb8707aa8c | 122 | } |
habusaq | 0:93cb8707aa8c | 123 | } |
habusaq | 0:93cb8707aa8c | 124 | ///////// user 5 /////////////// |
habusaq | 0:93cb8707aa8c | 125 | for(i=0; i<number_of_chars; i++) { |
habusaq | 0:93cb8707aa8c | 126 | if( enterd_pass[i] == pass_user5[i] ) { |
habusaq | 0:93cb8707aa8c | 127 | user_index5 = 5; |
habusaq | 0:93cb8707aa8c | 128 | } else { |
habusaq | 0:93cb8707aa8c | 129 | user_index5 = 0; |
habusaq | 0:93cb8707aa8c | 130 | break; |
habusaq | 0:93cb8707aa8c | 131 | } |
habusaq | 0:93cb8707aa8c | 132 | } |
habusaq | 0:93cb8707aa8c | 133 | ////////////////////////////////////////////////// |
habusaq | 0:93cb8707aa8c | 134 | if( (1 == user_index1)||(2 == user_index2)||(3 == user_index3)||(4 == user_index4)||(5 == user_index5) ) { |
habusaq | 0:93cb8707aa8c | 135 | pc.printf("Access granted "); |
habusaq | 0:93cb8707aa8c | 136 | led_red = 1; |
habusaq | 0:93cb8707aa8c | 137 | active_buzzer = 1; |
habusaq | 0:93cb8707aa8c | 138 | lcd.locate(0,1); // col, row |
habusaq | 0:93cb8707aa8c | 139 | lcd.printf("User: "); |
habusaq | 0:93cb8707aa8c | 140 | |
habusaq | 0:93cb8707aa8c | 141 | if(1 == user_index1) { |
habusaq | 0:93cb8707aa8c | 142 | lcd.locate(6,1); // col, row |
habusaq | 0:93cb8707aa8c | 143 | lcd.printf("HA"); |
habusaq | 0:93cb8707aa8c | 144 | } |
habusaq | 0:93cb8707aa8c | 145 | if(2 == user_index2) { |
habusaq | 0:93cb8707aa8c | 146 | lcd.locate(6,1); // col, row |
habusaq | 0:93cb8707aa8c | 147 | lcd.printf("FA"); |
habusaq | 0:93cb8707aa8c | 148 | } |
habusaq | 0:93cb8707aa8c | 149 | if(3 == user_index3) { |
habusaq | 0:93cb8707aa8c | 150 | lcd.locate(6,1); // col, row |
habusaq | 0:93cb8707aa8c | 151 | lcd.printf("AA"); |
habusaq | 0:93cb8707aa8c | 152 | } |
habusaq | 0:93cb8707aa8c | 153 | if(4 == user_index4) { |
habusaq | 0:93cb8707aa8c | 154 | lcd.locate(6,1); // col, row |
habusaq | 0:93cb8707aa8c | 155 | lcd.printf("MA"); |
habusaq | 0:93cb8707aa8c | 156 | } |
habusaq | 0:93cb8707aa8c | 157 | if(5 == user_index5) { |
habusaq | 0:93cb8707aa8c | 158 | lcd.locate(6,1); // col, row |
habusaq | 0:93cb8707aa8c | 159 | lcd.printf("FF"); |
habusaq | 0:93cb8707aa8c | 160 | } |
habusaq | 0:93cb8707aa8c | 161 | |
habusaq | 0:93cb8707aa8c | 162 | wait(1); |
habusaq | 1:5461144fd540 | 163 | active_buzzer = 1; |
habusaq | 1:5461144fd540 | 164 | beep = 80.3/100.0; |
habusaq | 0:93cb8707aa8c | 165 | led_red = 0; |
habusaq | 0:93cb8707aa8c | 166 | wait(1); |
habusaq | 0:93cb8707aa8c | 167 | lcd.cls(); |
habusaq | 0:93cb8707aa8c | 168 | |
habusaq | 0:93cb8707aa8c | 169 | |
habusaq | 0:93cb8707aa8c | 170 | } |
habusaq | 0:93cb8707aa8c | 171 | |
habusaq | 0:93cb8707aa8c | 172 | else { |
habusaq | 0:93cb8707aa8c | 173 | lcd.locate(0,0); // col, row |
habusaq | 0:93cb8707aa8c | 174 | lcd.printf("Access denied "); |
habusaq | 0:93cb8707aa8c | 175 | led_green = 1; |
habusaq | 0:93cb8707aa8c | 176 | wait(1); |
habusaq | 0:93cb8707aa8c | 177 | led_green = 0; |
habusaq | 1:5461144fd540 | 178 | active_buzzer = 0; |
habusaq | 1:5461144fd540 | 179 | beep = 0.0/100.0; |
habusaq | 0:93cb8707aa8c | 180 | } |
habusaq | 1:5461144fd540 | 181 | |
habusaq | 1:5461144fd540 | 182 | beep = 0.0/100.0; |
habusaq | 0:93cb8707aa8c | 183 | |
habusaq | 0:93cb8707aa8c | 184 | } |
habusaq | 0:93cb8707aa8c | 185 | } |
habusaq | 0:93cb8707aa8c | 186 |