upm/examples/c++/mma7660.cxx

/*
 * Author: Jon Trulson <jtrulson@ics.com>
 * Copyright (c) 2015 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 "mma7660.hpp"
#include "upm_utilities.h"

using namespace std;

int shouldRun = true;

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

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

    //! [Interesting]
    // Instantiate an MMA7660 on I2C bus 0

    upm::MMA7660 accel(MMA7660_DEFAULT_I2C_BUS, MMA7660_DEFAULT_I2C_ADDR);

    // place device in standby mode so we can write registers
    accel.setModeStandby();

    // enable 64 samples per second
    accel.setSampleRate(MMA7660_AUTOSLEEP_64);

    // place device into active mode
    accel.setModeActive();

    while (shouldRun) {
        float ax, ay, az;

        accel.getAcceleration(&ax, &ay, &az);
        cout << "Acceleration: x = " << ax << "g y = " << ay << "g z = " << az << "g" << endl;

        cout << endl;
        upm_delay_us(500000);
    }

    //! [Interesting]

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

    return 0;
}