upm/examples/c++/ds18b20.cxx

/*
 * Author: Jon Trulson <jtrulson@ics.com>
 * Copyright (c) 2016-2017 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 "ds18b20.hpp"
#include "upm_utilities.h"

using namespace std;

bool shouldRun = true;

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

int
main(int argc, char** argv)
{
    signal(SIGINT, sig_handler);

    //! [Interesting]

    cout << "Initializing..." << endl;

    // Instantiate an DS18B20 instance using the default values (uart 0)
    upm::DS18B20 sensor;

    cout << "Found " << sensor.devicesFound() << " device(s)" << endl;
    cout << endl;

    // bail if we didn't find anything
    if (!sensor.devicesFound())
        return 1;

    // update and print available values every 2 seconds
    while (shouldRun) {
        // update our values for all of the detected sensors
        sensor.update(-1);

        // we show both C and F for temperature for the sensors
        int i;
        for (i = 0; i < sensor.devicesFound(); i++) {
            cout << "Device " << i << ": Temperature: " << sensor.getTemperature(i) << " C / "
                 << sensor.getTemperature(i, true) << " F" << endl;
        }
        cout << endl;

        upm_delay(2);
    }

    cout << "Exiting..." << endl;

    //! [Interesting]

    return 0;
}