File content as of revision 1:6b9c38f0638d:

#include "mbed.h"
#include "DebouncedEdgeIn.h"
#include "USBMouseKeyboard.h"
#include <iostream>
#include <stdlib.h>
#include <iostream>
#include <time.h>
int x = 0;
int y = 0;
int z = 0;
int q = 0;
int s = 0;
int e = 0;
int r = 0;
int u = 0;




DebouncedEdgeIn b0(D12);
DebouncedEdgeIn b1(D11);
DebouncedEdgeIn b2(D10);
DebouncedEdgeIn b3(D9);
DebouncedEdgeIn b4(D8);
DebouncedEdgeIn b5(D7);
DebouncedEdgeIn b6(D6);
DebouncedEdgeIn b7(D5);
DebouncedEdgeIn b8(D4);
DebouncedEdgeIn b9(D3);

// SPST Pushbutton demo using internal PullUp function
// no external PullUp resistor needed
// Pushbutton from D2 to GND.
Serial pc(USBTX, USBRX);
//To output in terminal:
//ls /dev/tty.usbmodem*
//determine port number XXXX for input below
//screen /dev/tty.usbmodemXXXX 9600

//USBMouseKeyboard
//USBMouseKeyboard key_mouse;
//if(b0.read()&&b1.read()){
      //  pc.printf("a");
        //key_mouse.printf("a");
    //}
    
    
    


 
    
void a(){
              x = x+1;       
}
void d(){
        y = y+1;
        }
void g(){
       z = z+1;
}
void j(){
       q = q+1;
}
void m(){
       s= s+1;
}
void p(){
       e = e+1;
}
void t(){
       r = r+1;
}
void w(){
       u = u+1;
}
void space(){
       pc.printf(" ");
}
void del(){
        if (x == 1) {
         pc.printf("a");
        }
        if (x == 2) {
         pc.printf("b");
        }
        if (x == 3) {
         pc.printf("c");
        }
       x = 0;
       if (y == 1) {
         pc.printf("d");
        }
        if (y == 2) {
         pc.printf("e");
        }
        if (y == 3) {
         pc.printf("f");
        }
       y = 0;
       if (z == 1) {
         pc.printf("g");
        }
        if (z == 2) {
         pc.printf("h");
        }
        if (z == 3) {
         pc.printf("i");
        }
       z = 0;
       if (q == 1) {
         pc.printf("j");
        }
        if (q == 2) {
         pc.printf("k");
        }
        if (q == 3) {
         pc.printf("l");
        }
       q = 0;
       if (s == 1) {
         pc.printf("m");
        }
        if (s == 2) {
         pc.printf("n");
        }
        if (s == 3) {
         pc.printf("o");
        }
       s = 0;
       if (e == 1) {
         pc.printf("p");
        }
        if (e == 2) {
         pc.printf("q");
        }
        if (e == 3) {
         pc.printf("r");
        }
        if (e == 4) {
         pc.printf("s");
        }
       e = 0;
       if (r == 1) {
         pc.printf("t");
        }
        if (r == 2) {
         pc.printf("u");
        }
        if (r == 3) {
         pc.printf("v");
        }
       r = 0;
       if (u == 1) {
         pc.printf("w");
        }
        if (u == 2) {
         pc.printf("x");
        }
        if (u == 3) {
         pc.printf("y");
        }
        if (u == 4) {
         pc.printf("z");
        }
       u = 0;
       
}

int main() {
    
    b0.mode(PullUp);
    b1.mode(PullUp);
    b2.mode(PullUp);
    b3.mode(PullUp);
    b4.mode(PullUp);
    b5.mode(PullUp);
    b6.mode(PullUp);
    b7.mode(PullUp);
    b8.mode(PullUp);
    b9.mode(PullUp);
    
    b1.fall(&a);
    b2.fall(&d);
    b3.fall(&g);
    b4.fall(&j);
    b5.fall(&m);
    b6.fall(&p);
    b7.fall(&t);
    b8.fall(&w);
    b9.fall(&space);
    b0.fall(&del);
  //  cout<<x<<endl;
  
    pc.printf("Initialized\r\n");
    //key_mouse.printf("Initialized\r\n");
     while(1) {
        
       
//        }
    }
}



  //  std::chrono::seconds interval( 10 ) ; // 10 seconds
   // for( int i = 0 ; i < 10 ; ++i )
   // {
    //   std::cout << "tick!\n" << std::flush ;
     //  std::this_thread::sleep_for( interval ) ;
   // }