Projeto Mecatrônico
teste teclado
principal_keypad.cpp@0:5b3b34d4e428, 2020-05-27 (annotated)
- Committer:
- enricoan
- Date:
- Wed May 27 17:26:51 2020 +0000
- Revision:
- 0:5b3b34d4e428
teste teclado separado
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| enricoan | 0:5b3b34d4e428 | 1 | #include "mbed.h" |
| enricoan | 0:5b3b34d4e428 | 2 | #include "Keypad.h" |
| enricoan | 0:5b3b34d4e428 | 3 | |
| enricoan | 0:5b3b34d4e428 | 4 | Keypad teclado(PA_6, PA_7, PF_6, PC_7, PB_7, PC_13, PC_14, PC_15); |
| enricoan | 0:5b3b34d4e428 | 5 | |
| enricoan | 0:5b3b34d4e428 | 6 | int main() { |
| enricoan | 0:5b3b34d4e428 | 7 | char tecla; |
| enricoan | 0:5b3b34d4e428 | 8 | int solta = 1; |
| enricoan | 0:5b3b34d4e428 | 9 | |
| enricoan | 0:5b3b34d4e428 | 10 | while(1){ |
| enricoan | 0:5b3b34d4e428 | 11 | tecla = teclado.ReadKey(); //read the current key pressed |
| enricoan | 0:5b3b34d4e428 | 12 | |
| enricoan | 0:5b3b34d4e428 | 13 | if(tecla == '\0') |
| enricoan | 0:5b3b34d4e428 | 14 | solta = 1; //set the flag when all keys are released |
| enricoan | 0:5b3b34d4e428 | 15 | |
| enricoan | 0:5b3b34d4e428 | 16 | if((tecla != '\0') && (solta == 1)) { //if a key is pressed AND previous key was released |
| enricoan | 0:5b3b34d4e428 | 17 | printf("%c\n", tecla); |
| enricoan | 0:5b3b34d4e428 | 18 | solta = 0; //clear the flag to indicate that key is still pressed |
| enricoan | 0:5b3b34d4e428 | 19 | } |
| enricoan | 0:5b3b34d4e428 | 20 | } |
| enricoan | 0:5b3b34d4e428 | 21 | } |