upm/examples/c++/bmp280.cxx
Jon Trulson c4a506f5a3 bmp280/bme280: C port, C++ wraps C
Some private methods (relating to calibration/compensation) are no
longer exposed.  In addition, the driver auto-detects the chip (BMP280
or BME280) and acts accordingly, rather than requiring the
specification of a chip id in the ctor.

The getHumidity() method no longer accepts an arguement representing
pressure at sea level.  A new method is provided to specify this.

Signed-off-by: Jon Trulson <jtrulson@ics.com>
2017-03-10 17:00:50 -07:00

80 lines
2.2 KiB
C++

/*
* Author: Jon Trulson <jtrulson@ics.com>
* Copyright (c) 2016-2017 Intel Corporation.
*
* The MIT License
*
* 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 "bmp280.hpp"
using namespace std;
using namespace upm;
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 BMP280 instance using default i2c bus and address
upm::BMP280 *sensor = new upm::BMP280();
// For SPI, bus 0, you would pass -1 as the address, and a valid pin for CS:
// BMP280(0, -1, 10);
while (shouldRun)
{
// update our values from the sensor
sensor->update();
// we show both C and F for temperature
cout << "Compensation Temperature: " << sensor->getTemperature()
<< " C / " << sensor->getTemperature(true) << " F"
<< endl;
cout << "Pressure: " << sensor->getPressure() << " Pa" << endl;
cout << "Computed Altitude: " << sensor->getAltitude() << " m" << endl;
cout << endl;
sleep(1);
}
//! [Interesting]
cout << "Exiting..." << endl;
delete sensor;
return 0;
}