upm/examples/c++/dfrorp.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

72 lines
1.6 KiB
C++

/*
* Author: Jon Trulson <jtrulson@ics.com>
* Copyright (c) 2016 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 "dfrorp.hpp"
#include "upm_utilities.h"
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 DFRobot ORP sensor on analog pin A0 with an analog
// reference voltage of 5.0.
upm::DFRORP sensor(0, 5.0);
// To calibrate:
//
// Disconnect the sensor probe (but leave the sensor interface board
// connected). Then run one of the examples while holding down the
// 'calibrate' button on the device. Read the ORP value reported
// (it should be fairly small).
//
// This value is what you should supply to setCalibrationOffset().
// Then reconnect the probe to the interface board and you should be
// ready to go.
//
// DO NOT press the calibrate button on the interface board while
// the probe is attached or you can permanently damage the probe.
sensor.setCalibrationOffset(0.97);
// Every second, update and print values
while (shouldRun) {
sensor.update();
cout << "ORP: " << sensor.getORP() << " mV" << endl;
cout << endl;
upm_delay(1);
}
//! [Interesting]
cout << "Exiting" << endl;
return 0;
}