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) 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 <string>
#include "mhz16.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]
// Instantiate a MHZ16 serial CO2 sensor on uart 0.
// This example was tested on the Grove CO2 sensor module.
upm::MHZ16 co2(0);
// make sure port is initialized properly. 9600 baud is the default.
if (!co2.setupTty(B9600)) {
cerr << "Failed to setup tty port parameters" << endl;
return 1;
}
cout << "Make sure that the sensor has had at least 3 minutes to warm up" << endl;
cout << "or you will not get valid results." << endl;
cout << "The temperature reported is not the ambient temperature, " << endl;
cout << "but rather the temperature of the sensor elements." << endl;
upm_delay(1);
while (shouldRun) {
if (!co2.getData()) {
cerr << "Failed to retrieve data" << endl;
continue;
}
cout << "CO2 concentration: " << co2.getGas() << " PPM, "
<< "Temperature (in C): " << co2.getTemperature() << endl;
upm_delay(2);
}
//! [Interesting]
cout << "Exiting..." << endl;
return 0;
}