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      1 /*
      2  * Author: Marc Graham <marc (at) m2ag.net>
      3  * Copyright (c) 2015 Intel Corporation.
      4  *
      5  * Permission is hereby granted, free of charge, to any person obtaining
      6  * a copy of this software and associated documentation files (the
      7  * "Software"), to deal in the Software without restriction, including
      8  * without limitation the rights to use, copy, modify, merge, publish,
      9  * distribute, sublicense, and/or sell copies of the Software, and to
     10  * permit persons to whom the Software is furnished to do so, subject to
     11  * the following conditions:
     12  *
     13  * The above copyright notice and this permission notice shall be
     14  * included in all copies or substantial portions of the Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     17  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     19  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
     20  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
     21  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
     22  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     23  */
     24 
     25 #include <iostream>
     26 #include <unistd.h>
     27 #include <signal.h>
     28 #include "micsv89.h"
     29 
     30 /*
     31  * An example for using the MICSV89 sensor library.
     32  * The MICSV89 comes in 4 variants, PWM and I2c
     33  * in 3.3 volts and 5 volts. This library only implements
     34  * the I2c version of the device.
     35  *
     36  * Device output is not valid until a warm up of 15 minutes
     37  * of operation.
     38  *
     39  * Additional linker flags: -lupm-micsv89
     40  */
     41 
     42 using namespace std;
     43 
     44 volatile int running = 1;
     45 
     46 void
     47 sig_handler(int signo)
     48 {
     49     if (signo == SIGINT) {
     50         cout << "Exiting program." << endl;
     51         running = 0;
     52     }
     53 }
     54 
     55 int main()
     56 {
     57     signal(SIGINT, sig_handler);
     58 
     59 //! [Interesting]
     60     upm::MICSV89 *sensor = new upm::MICSV89(6);
     61 
     62     while(running)
     63     {
     64         sensor->update();
     65         while(!sensor->valid());
     66         cout << "co2: " << sensor->co2equ() << endl;
     67         cout << "short: " << sensor->vocshort() << endl;
     68         cout << "tvoc: " << sensor->tvoc() << endl;
     69         cout << "resistor: " << sensor->resistor() << endl;
     70         cout << "****************************" << endl;
     71         sleep(5);
     72     }
     73 
     74     delete sensor;
     75 //! [Interesting]
     76 
     77     return MRAA_SUCCESS;
     78 }
     79