main.cpp

00001   #include "mbed.h"
00002   #include "Keypad.h"
00003 #include "TextLCD.h"
00004 
00005 //pin selection for keypad matrix
00006 
00007  Keypad kpad(PTE2,PTE3,PTE4,PTE5,PTB8,PTB9,PTB10,PTB11);
00008  
00009  /*
00010 col1, col2, col3, col4, row1, row2, row3, row4
00011 */
00012 
00013 // serial connection to pc for debugging and troubleshooting
00014  Serial pc(USBTX, USBRX);
00015  
00016 //define passwords of for individual users
00017 const uint32_t number_of_chars = 5; //password length
00018 const char pass_user1[number_of_chars] = {'1','2','3','4','*'}; //
00019 const char pass_user2[number_of_chars] = {'1','4','7','4','*'}; //
00020 const char pass_user3[number_of_chars] = {'0','0','0','0','0'}; //
00021 const char pass_user4[number_of_chars] = {'6','5','4','C','*'}; //
00022 const char pass_user5[number_of_chars] = {'A','A','A','A','A'}; //
00023 
00024 //choose the character length of valid passwords
00025 char enterd_pass[number_of_chars] = {' ',' ',' ',' ',' '};
00026 
00027 
00028 //initialize outputs
00029 DigitalOut led_red(LED_RED);
00030 DigitalOut led_green(LED_GREEN);
00031 DigitalOut active_buzzer(PTA4);
00032 DigitalOut output1(PTA5);
00033   //Buzzer on pin PTD4
00034 
00035 PwmOut beep(PTD4); // buzzer
00036 
00037 int main()
00038 {
00039     char key;
00040     int i;
00041    int user_index1=0;
00042     int user_index2=0;
00043     int user_index3=0;
00044     int user_index4=0;
00045     int user_index5=0;
00046     int j=0;
00047     int flag=0;
00048     
00049 printf("\n \n PASSWORD REQUIRED \n \n ");
00050 
00051     int released =1;
00052   
00053     output1=1;
00054     printf("\r\n Password Entered:");
00055     led_green = 0;
00056     led_red = 0;
00057     active_buzzer = 0;
00058 
00059 //buzzer period select
00060     beep.period(0.001);
00061     
00062     wait(0.001);
00063 
00064     
00065 do{
00066     while(1) {
00067         led_green = 0;
00068         led_red = 0;
00069         printf("Enter Password:");
00070         
00071         // Reading the password characters
00072         for(i=0; i<number_of_chars; i++) {
00073             key = kpad.ReadKey();
00074         
00075     if(key == '\0')
00076              released = 1;                       //set the flag when all keys are released
00077            if((key != '\0') && (released == 1)) {  //if a key is pressed AND previous key was released
00078         enterd_pass[i]=key; 
00079         printf("%c ",enterd_pass[i]);           
00080               released = 0;                       //clear the flag to indicate that key is still pressed
00081               }
00082 else
00083 i--;
00084           
00085 
00086            
00087         }
00088         
00089         wait(0.003);
00090         
00091         // comparing password entered via keypad to valid user passwords
00092 
00093       /////////    user 1    ///////////////
00094         for(i=0; i<number_of_chars; i++) {
00095             if( enterd_pass[i] == pass_user1[i] ) {
00096                 user_index1 = 1;
00097                 active_buzzer = 0;
00098             } else {
00099                 user_index1 = 0;
00100                 break;
00101             }
00102         }
00103         
00104         
00105 
00106         /////////    user 2    ///////////////
00107         for(i=0; i<number_of_chars; i++) {
00108             if( enterd_pass[i] == pass_user2[i] ) {
00109                 user_index2 = 2;
00110             } else {
00111                 user_index2 = 0;
00112                 break;
00113             }
00114         }
00115         /////////    user 3    ///////////////
00116         for(i=0; i<number_of_chars; i++) {
00117             if( enterd_pass[i] == pass_user3[i] ) {
00118                 user_index3 = 3;
00119             } else {
00120                 user_index3 = 0;
00121                 break;
00122             }
00123         }
00124         /////////    user 4    ///////////////
00125         for(i=0; i<number_of_chars; i++) {
00126             if( enterd_pass[i] == pass_user4[i] ) {
00127                 user_index4 = 4;
00128             } else {
00129                 user_index4 = 0;
00130                 break;
00131             }
00132         }
00133         /////////    user 5    ///////////////
00134         for(i=0; i<number_of_chars; i++) {
00135             if( enterd_pass[i] == pass_user5[i] ) {
00136                 user_index5 = 5;
00137             } else {
00138                 user_index5 = 0;
00139                 break;
00140             }
00141         }
00142         
00143        
00144 ////// correct password prompts and outputs
00145         if( (1 == user_index1)||(2 == user_index2)||(3 == user_index3)||(4 == user_index4)||(5 == user_index5) ) {
00146             printf("\r\n Passcode recognized \n \n ");
00147             led_red = 1;
00148             active_buzzer = 0;
00149             printf("\r\n Welcome Cory Burke \n \n" );
00150            
00151           output1=0;
00152 
00153             if(1 == user_index1) {
00154                 printf("\r Access granted User 1 \n \n");
00155             led_red = 1;
00156             active_buzzer = 0;
00157             printf("\r\n Welcome User 1 \n" );
00158             printf("\r User numer: 1 \n");
00159             output1=0;
00160             }
00161             if(2 == user_index2) {
00162                 printf("\r\n Access granted: User 2 \n \n ");
00163             led_red = 1;
00164             active_buzzer = 0;
00165             printf("\r\n Welcome User 2 \n" );
00166             printf("\r User numer: 2 \n");
00167             output1=0;
00168             }
00169             if(3 == user_index3) {
00170                 printf("\r\n Access granted: User 3  \n ");
00171             led_red = 1;
00172             active_buzzer = 0;
00173             printf("\r\n Welcome User 3 \n" );
00174             printf("\r User numer: 3 \n ");
00175             output1=0;
00176             }
00177             if(4 == user_index4) {
00178                 printf("\r\n Access granted: User 4   \n ");
00179             led_red = 1;
00180             active_buzzer = 0;
00181             printf("\r\n Welcome User 4 \n" );
00182             printf("\r User numer: 4 \n");
00183             output1=0;
00184             }
00185             if(5 == user_index5) {
00186                 printf("\r Access granted: User 5 \n ");
00187             led_red = 1;
00188             active_buzzer = 0;
00189             printf("\r\n Welcome User 5 \n " );
00190             printf("\r User numer: 5 \n");
00191             output1=0;
00192             }
00193 
00194             wait(1);
00195             active_buzzer = 0;
00196             beep = 25.0/100.0;
00197             led_red = 0;
00198             led_green=0;
00199             output1=1;
00200             wait(1);
00201       
00202 
00203 
00204         }
00205 // indicates that an incorrect passwords was entered with leds and buzzer
00206         else {
00207             printf("\r\n \n Incorrect password \n \n Access denied!  \n \n  ");
00208             led_green = 1;
00209             led_red=0;
00210             wait(1);
00211             active_buzzer = 1;
00212              beep = 50.0/100.0;
00213             j=j+1;
00214             
00215             if(j==4){printf("\r\n \n TOO MANT ATTEMPTS, SYSTEM LOCKOUT  \n \n  ");
00216             led_green = 1;
00217             led_red=0;
00218             flag=1;
00219             wait(1);
00220             active_buzzer = 1;
00221              beep = 50.0/100.0;
00222                output1=1;
00223             wait(1);
00224              output1=0;
00225             wait(1);
00226              output1=1;
00227             wait(1);
00228              output1=0;
00229             wait(1);
00230              output1=1;
00231             wait(1);   
00232                                                                             }
00233             
00234                                                                     }
00235         
00236         beep = 0.0/100.0;
00237         led_green = 0;
00238             led_red=0;
00239     }
00240     
00241     
00242     
00243     
00244     
00245     } while(flag==0);
00246     
00247     
00248     
00249     
00250     
00251     
00252 }
00253