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#include "mbed.h"
#include "PinDetect.h"
#include "USBKeyboard.h"

USBKeyboard keyboard;

// must import Cookbook PinDetct library into project
// URL: http://mbed.org/users/AjK/libraries/PinDetect/lkyxpw
 
DigitalOut myled(LED_RED);
DigitalOut myled2(LED_GREEN);
DigitalOut myled3(LED_BLUE); 

PinDetect pb1(PTC12);
PinDetect pb2(PTA13);
// SPST Pushbutton debounced count demo using interrupts and callback
// no external PullUp resistor needed
// Pushbutton from P8 to GND.
// Second Pushbutton from P7 to GND.
// A pb hit generates an interrupt and activates the callback function
// after the switch is debounced
 
// Global count variable
int volatile count=0;

// Callback routine is interrupt activated by a debounced pb1 hit
void pb1_hit_callback (void) {
    count++;
    myled3 = count & 0x01;
    myled2 = (count & 0x02)>>1;
    keyboard._putc(44);    //THIS MESSES UP, dono why.
}
// Callback routine is interrupt activated by a debounced pb2 hit
void pb2_hit_callback (void) {
    count--;
    myled3 = count & 0x01;
    myled2 = (count & 0x02)>>1;
    keyboard._putc(45);  //SAME HERE
}

int main() {
    // Use internal pullups for pushbutton
    pb1.mode(PullUp);
    pb2.mode(PullUp);    
    // Delay for initial pullup to take effect
    wait(.01);
    // Setup Interrupt callback functions for a pb hit
    pb1.attach_deasserted(&pb1_hit_callback);
    pb2.attach_deasserted(&pb2_hit_callback);
    // Start sampling pb inputs using interrupts
    pb1.setSampleFrequency(100);
    pb2.setSampleFrequency(100);
    //Blink myled in main routine forever while responding to pb changes
    // via interrupts that activate the callback counter function
    while (1) {
/*        if ( myled3 )
            keyboard._putc(45);
        if ( myled2 )
            keyboard._putc(44); */ //Out here in the main, it does work.
        
        myled = !myled;
        wait(1);
    }
}