pasword
Dependencies: Keypadlatest TextLCD
Diff: main.cpp
- Revision:
- 0:819b4e0e0ae6
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Thu Nov 16 04:41:13 2017 +0000 @@ -0,0 +1,64 @@ + +#include "mbed.h" +#include "Keypad.h" +#include "TextLCD.h" +#include "string.h" +TextLCD display(D8, D9, D4, D5, D6, D7); // rs, e, d4-d7 + +char kpdLayout[4][4] = {{'1' ,'2' ,'3' ,'A'}, //row0 + {'4' ,'5' ,'6' ,'B'}, //row1 + {'7' ,'8' ,'9' ,'C'}, //row2 + {'*' ,'0' ,'#' ,'D'}}; //row3 + +Keypad kpad(PB_14, PB_15, PB_1, PB_2, PB_11, PB_12, PA_11, PA_12); +char password[20]; +const char code1[]="12345678"; +int main() { + char key; + int released = 1,count=0; + display.locate(0,0); + display.printf("insert password"); + while(1){ + key = kpad.ReadKey(); //read the current key pressed + 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 + if(key!='#') + { password[count]=key; // add pasword + password[count+1]='\0'; // put end of password + count++; //counter + if(count>8) //max count + count=0; + display.cls(); + display.locate(0,0); + display.printf("insert password"); + display.locate(2,1); + display.printf("pass:%s",password); + } + else if(key=='#') + { bool accept=1; + for(int i=0;password[i]!='\0';i++) + { if(password[i]!=code1[i]) + { accept=0; + break; + } + } + display.cls(); + if(accept==0) + { display.locate(0,0); + display.printf("wrong password "); + } + else + { display.locate(0,0); + display.printf("accept password"); + } + count=0; // reset password counter + } + + + + released = 0; //clear the flag to indicate that key is still pressed + } + } +}