upm/examples/c++/ehr.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

66 lines
1.4 KiB
C++

/*
* Author: Jon Trulson <jtrulson@ics.com>
* Copyright (c) 2014 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 "ehr.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 Ear-clip Heart Rate sensor on digital pin D2
upm::EHR heart(2);
// set the beat counter to 0, init the clock and start counting beats
heart.clearBeatCounter();
heart.initClock();
heart.startBeatCounter();
while (shouldRun) {
// we grab these just for display purposes in this example
uint32_t millis = heart.getMillis();
uint32_t beats = heart.beatCounter();
// heartRate() requires that at least 5 seconds pass before
// returning anything other than 0
int hr = heart.heartRate();
// output milliseconds passed, beat count, and computed heart rate
cout << "Millis: " << millis << " Beats: " << beats;
cout << " Heart Rate: " << hr << endl;
upm_delay(1);
}
heart.stopBeatCounter();
//! [Interesting]
cout << "Exiting..." << endl;
return 0;
}