Diff: main.cpp

Revision:

0:93cb8707aa8c

Child:

1:5461144fd540

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Apr 23 01:23:45 2018 +0000
@@ -0,0 +1,182 @@
+  #include "mbed.h"
+  #include "Keypad.h"
+#include "TextLCD.h"
+ Keypad kpad(PTC8, PTC1, PTB19, PTB18, PTC5, PTC7, PTC0, PTC9);
+ Serial pc(USBTX, USBRX);
+ TextLCD lcd(PTA1, PTB23, PTA2, PTC2, PTC3, PTC12, TextLCD::LCD16x2); 
+/*
+col1, col2, col3, col4,
+row1, row2, row3, row4
+*/
+
+const int number_of_chars = 4;
+const char pass_user1[number_of_chars] = {'1','2','3','A'};  //HA
+const char pass_user2[number_of_chars] = {'2','2','3','A'};  //FA
+const char pass_user3[number_of_chars] = {'5','2','3','A'};  //AA
+const char pass_user4[number_of_chars] = {'6','2','3','A'};  //MA
+const char pass_user5[number_of_chars] = {'7','2','3','A'};  //FF
+
+char enterd_pass[number_of_chars] = {' ', ' ',' ',' '};
+
+DigitalOut led_red(LED_RED);
+DigitalOut led_green(LED_GREEN);
+DigitalOut active_buzzer(PTC4);  //Buzzer on pin PTC4=D9
+
+
+//Serial pc(USBTX, USBRX);
+
+int main()
+{
+    char key;
+    int i;
+   int user_index1=0;
+    int user_index2=0;
+    int user_index3=0;
+    int user_index4=0;
+    int user_index5=0;
+ 
+    int released =1;;
+    
+
+    led_green = 0;
+    led_red = 0;
+    active_buzzer = 0;
+
+ 
+
+    lcd.cls();
+    wait(0.001);
+
+    
+
+    while(true) {
+        
+        lcd.locate(0,0); // col, row 
+        lcd.printf("Enter Password:");
+
+        // Reading the password characters
+        for(i=0; i<number_of_chars; i++) {
+            key = kpad.ReadKey();
+        
+    if(key == '\0')
+             released = 1;                       //set the flag when all keys are released
+           if((key != '\0') && (released == 1)) {  //if a key is pressed AND previous key was released
+        enterd_pass[i]=key; 
+        lcd.locate(i,1); // col, row             
+        lcd.printf("*"); 
+                    
+              released = 0;                       //clear the flag to indicate that key is still pressed
+              }
+else
+i--;
+          
+
+           
+        }
+        
+        wait(0.5);
+        
+        lcd.locate(0,1); // col, row             
+        lcd.printf("    " ); 
+        
+        // comparing passwords
+
+      /////////    user 1    ///////////////
+        for(i=0; i<number_of_chars; i++) {
+            if( enterd_pass[i] == pass_user1[i] ) {
+                user_index1 = 1;
+            } else {
+                user_index1 = 0;
+                break;
+            }
+        }
+        
+        
+
+        /////////    user 2    ///////////////
+        for(i=0; i<number_of_chars; i++) {
+            if( enterd_pass[i] == pass_user2[i] ) {
+                user_index2 = 2;
+            } else {
+                user_index2 = 0;
+                break;
+            }
+        }
+        /////////    user 3    ///////////////
+        for(i=0; i<number_of_chars; i++) {
+            if( enterd_pass[i] == pass_user3[i] ) {
+                user_index3 = 3;
+            } else {
+                user_index3 = 0;
+                break;
+            }
+        }
+        /////////    user 4    ///////////////
+        for(i=0; i<number_of_chars; i++) {
+            if( enterd_pass[i] == pass_user4[i] ) {
+                user_index4 = 4;
+            } else {
+                user_index4 = 0;
+                break;
+            }
+        }
+        /////////    user 5    ///////////////
+        for(i=0; i<number_of_chars; i++) {
+            if( enterd_pass[i] == pass_user5[i] ) {
+                user_index5 = 5;
+            } else {
+                user_index5 = 0;
+                break;
+            }
+        }
+//////////////////////////////////////////////////
+        if( (1 == user_index1)||(2 == user_index2)||(3 == user_index3)||(4 == user_index4)||(5 == user_index5) ) {
+            pc.printf("Access granted    ");
+            led_red = 1;
+            active_buzzer = 1;
+            lcd.locate(0,1); // col, row
+            lcd.printf("User: ");
+
+            if(1 == user_index1) {
+                lcd.locate(6,1); // col, row
+                lcd.printf("HA");
+            }
+            if(2 == user_index2) {
+                lcd.locate(6,1); // col, row
+                lcd.printf("FA");
+            }
+            if(3 == user_index3) {
+                lcd.locate(6,1); // col, row
+                lcd.printf("AA");
+            }
+            if(4 == user_index4) {
+                lcd.locate(6,1); // col, row
+                lcd.printf("MA");
+            }
+            if(5 == user_index5) {
+                lcd.locate(6,1); // col, row
+                lcd.printf("FF");
+            }
+
+            wait(1);
+            active_buzzer = 0;
+            led_red = 0;
+            wait(1);
+       lcd.cls();
+
+
+        }
+
+        else {
+            lcd.locate(0,0); // col, row  
+            lcd.printf("Access denied     ");
+            led_green = 1;
+            wait(1);
+            led_green = 0;
+            
+        }
+
+
+    }
+}
+