upm/examples/c++/ad8232.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 <unistd.h>
#include <iostream>
#include <signal.h>
#include "ad8232.hpp"

using namespace std;

bool shouldRun = true;

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

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

//! [Interesting]
  // Instantiate a Ad8232 sensor on digital pins 10 (LO+), 11 (LO-)
  // and an analog pin, 0 (OUTPUT)
  upm::AD8232 *ad8232 = new upm::AD8232(10, 11, 0);
  
  // Output the raw numbers from the ADC, for plotting elsewhere.
  // A return of 0 indicates a Lead Off (LO) condition.
  // In theory, this data could be fed to software like Processing 
  // (https://www.processing.org/) to plot the data just like an 
  // EKG you would see in a hospital.
  while (shouldRun)
    {
      cout << ad8232->value() << endl;      
      usleep(1000);
    }
//! [Interesting]

  cout << "Exiting" << endl;

  delete ad8232;
  return 0;
}