Isaac Cruz / Mbed 2 deprecated Practica_6_-_Ejercicio_03

Practica_6_-_Ejercicio_03

Dependencies:   mbed TextLCD Keypad

main.cpp

Committer:
isaacross99
Date:
2019-11-20
Revision:
32:03bfdca818b6
Parent:
31:080589c1250a

File content as of revision 32:03bfdca818b6:

#include "mbed.h"
#include "TextLCD.h"
#include "Keypad.h"
TextLCD lcd(PTE24, PTE25, PTD1, PTD3, PTD2, PTD0, TextLCD::LCD16x2); // rs, e, d4-d7
Keypad kpad(PTA2, PTB23, PTA1, PTB9, PTC4, PTC12, PTC3, PTC2);

int main() {
    char key;
    int released = 1;

    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
            lcd.printf("%c", key);            
            released = 0;                       //clear the flag to indicate that key is still pressed
        }
    }
}