upm/examples/c++/my9221-groveledbar.cxx

/*
 * Author: Jon Trulson <jtrulson@ics.com>
 * Copyright (c) 2015 Intel Corporation.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#include <iostream>
#include <signal.h>

#include "groveledbar.hpp"
#include "upm_utilities.h"

using namespace std;

int shouldRun = true;

void
sig_handler(int signo)
{
    if (signo == SIGINT)
        shouldRun = false;
}

int
main()
{
    signal(SIGINT, sig_handler);

    //! [Interesting]

    // Instantiate a GroveLEDBar, we use D8 for the data, and D9 for the
    // clock.  This was tested with a Grove LED bar.
    upm::GroveLEDBar bar(8, 9);

    while (shouldRun) {
        // count up from green to red
        for (int i = 0; i <= 10; i++) {
            bar.setBarLevel(i, true);
            upm_delay_us(100000);
        }
        upm_delay(1);

        // count down from red to green
        for (int i = 0; i <= 10; i++) {
            bar.setBarLevel(i, false);
            upm_delay_us(100000);
        }
        upm_delay(1);
    }
    //! [Interesting]

    cout << "Exiting..." << endl;
    // turn off the LED's
    bar.setBarLevel(0);

    return 0;
}