upm/examples/c++/my9221-groveledbar.cxx
Mihai Tudor Panu 89d5de43e0 license: update to SPDX style license text throughout
Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
2020-03-05 15:13:36 -08:00

63 lines
1.2 KiB
C++

/*
* Author: Jon Trulson <jtrulson@ics.com>
* Copyright (c) 2015 Intel Corporation.
*
* This program and the accompanying materials are made available under the
* terms of the The MIT License which is available at
* https://opensource.org/licenses/MIT.
*
* SPDX-License-Identifier: MIT
*/
#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;
}