File content as of revision 0:0a6f193d5344:

#include "mbed.h"

#include "LPD8806.h"

DigitalOut led1(LED1);
DigitalOut led2(LED2);
DigitalOut led3(LED3);
DigitalOut led4(LED4);

LPD8806 strip = LPD8806(32);

/* 0 - 16 */
void top_strip(int quantity){
    int i;
    
    if (quantity == 0) {
        // blank it
        setPixelsTop(0, 16, 0);
    }

    setPixelsTop(0, quantity < 12 ? quantity : 12, strip.Color(0, 127, 0));
        
    for (i = 0 ; i < 12 ; i++) {
        if (i <= quantity)
            strip.setPixelColor(i, 0, 127, 0);
        else
            strip.setPixelColor(i, 0, 0, 0);
    }
    i = 12;
    if (i <= quantity)
        strip.setPixelColor(i, 127, 127, 0);
    else
        strip.setPixelColor(i, 0, 0, 0);

    i = 13;
    if (i <= quantity)
        strip.setPixelColor(i, 127, 127, 0);
    else
        strip.setPixelColor(i, 0, 0, 0);

    i = 14;
    if (i <= quantity)
        strip.setPixelColor(i, 127, 0, 0);
    else
        strip.setPixelColor(i, 0, 0, 0);

    i = 15;
    if (i <= quantity)
        strip.setPixelColor(i, 127, 0, 0);
    else
        strip.setPixelColor(i, 0, 0, 0);

    strip.show();
}

void bottom_strip(int quantity){
    int i;
    
    for (i = 0 ; i < 12 ; i++) {
        if (i <= quantity)
            strip.setPixelColor(16 + i, 0, 127, 0);
        else
            strip.setPixelColor(16 + i, 0, 0, 0);
    }
    i = 12;
    if (i <= quantity)
        strip.setPixelColor(16 + i, 127, 127, 0);
    else
        strip.setPixelColor(16 + i, 0, 0, 0);

    i = 13;
    if (i <= quantity)
        strip.setPixelColor(16 + i, 127, 127, 0);
    else
        strip.setPixelColor(16 + i, 0, 0, 0);

    i = 14;
    if (i <= quantity)
        strip.setPixelColor(16 + i, 127, 0, 0);
    else
        strip.setPixelColor(16 + i, 0, 0, 0);

    i = 15;
    if (i <= quantity)
        strip.setPixelColor(16 + i, 127, 0, 0);
    else
        strip.setPixelColor(16 + i, 0, 0, 0);
}

void setPixelsTop(int start, int end, int colour) {
    int i;

    for (i = start; i < end + 1 ; i++) {
        strip.setPixelColor(i, colour);
    }
}

void setPixelsBottom(int start, int end, int colour) {
    int i;

    for (i = start; i < end + 1 ; i++) {
        strip.setPixelColor(16 + i, colour);
    }
}

int main() {
    int count = 0;
    int c2 = 0;
    int i;

    strip.begin();
    
    for (i = 0 ; i < strip.numPixels() ; i++) {
        // clear the strip
        strip.setPixelColor(i, 0);
    }
    
    strip.show();
    
    while(1) {

        if (c2 > 16) c2 = 0;

        led1 = 1;
        wait(0.25);
        led1 = 0;
        count ++;
        if (count > 2)
        {
            top_strip(c2);
            bottom_strip(c2);
            strip.show();
            count = 0;
            c2 ++;
        }
    }
}