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      1 /*
      2  * Author: Jon Trulson <jtrulson (at) ics.com>
      3  * Copyright (c) 2014 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 <unistd.h>
     26 #include <iostream>
     27 #include <iomanip>
     28 #include <signal.h>
     29 #include "otp538u.h"
     30 
     31 using namespace std;
     32 
     33 bool shouldRun = true;
     34 
     35 // analog voltage, usually 3.3 or 5.0
     36 #define OTP538U_AREF   5.0
     37 
     38 void sig_handler(int signo)
     39 {
     40   if (signo == SIGINT)
     41     shouldRun = false;
     42 }
     43 
     44 int main()
     45 {
     46   signal(SIGINT, sig_handler);
     47 
     48 //! [Interesting]
     49 
     50   // Instantiate a OTP538U on analog pins A0 and A1
     51   // A0 is used for the Ambient Temperature and A1 is used for the
     52   // Object temperature.
     53   upm::OTP538U *temps = new upm::OTP538U(0, 1, OTP538U_AREF);
     54 
     55   // Output ambient and object temperatures
     56   while (shouldRun)
     57     {
     58       cout << "Ambient temp: " << std::fixed << setprecision(2)
     59            << temps->ambientTemperature()
     60            << " C, Object temp: " << temps->objectTemperature()
     61            << " C" << endl;
     62 
     63       sleep(1);
     64     }
     65 //! [Interesting]
     66 
     67   cout << "Exiting" << endl;
     68 
     69   delete temps;
     70   return 0;
     71 }
     72