upm/examples/c++/dfrph.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

64 lines
1.3 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 "dfrph.hpp"
#include "upm_utilities.h"
using namespace std;
bool shouldRun = true;
#define DFRPH_AREF 5.0
void
sig_handler(int signo)
{
if (signo == SIGINT)
shouldRun = false;
}
int
main()
{
signal(SIGINT, sig_handler);
//! [Interesting]
// Instantiate a DFRPH sensor on analog pin A0, with an analog
// reference voltage of DFRPH_AREF
upm::DFRPH sensor(0, DFRPH_AREF);
// After calibration, set the offset (based on calibration with a pH
// 7.0 buffer solution). See the UPM sensor documentation for
// calibrations instructions.
sensor.setOffset(0.065);
// Every second, sample the pH and output it's corresponding
// analog voltage.
while (shouldRun) {
cout << "Detected volts: " << sensor.volts() << endl;
cout << "pH value: " << sensor.pH() << endl;
cout << endl;
upm_delay(1);
}
//! [Interesting]
cout << "Exiting" << endl;
return 0;
}