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5cefe7f5f3
Cleanup of UPM C++ examples. Switched from heap allocation to
stack allocation when possible. This simplifies the samples since it
removes the need for explicit memory management. A script was used to
identify and replace pointer use. To simplify the replace script, I
re-formatted the C++ examples using the UPM .clang-format file.
Unfortuantely this changes the look of the UPM C++ examples to a large
degree. However, examples will now have a standard look/feel and
uniform formatting.
* Ran clang-format w/provided UPM .clang-format file
* Removed new's/delete's whenever possible (left those in interface
examples)
* Added IIO sensor library implementation of callback void* arg
* Converted all sleeps to upm defined delays (added header when
necessary)
* Scrubbed CXX example includes
Signed-off-by: Noel Eck <noel.eck@intel.com>
78 lines
2.3 KiB
C++
78 lines
2.3 KiB
C++
/*
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* Author: Jon Trulson <jtrulson@ics.com>
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* Copyright (c) 2014 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <iostream>
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#include <signal.h>
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#include "mq303a.hpp"
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#include "upm_utilities.h"
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using namespace std;
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int shouldRun = true;
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void
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sig_handler(int signo)
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{
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if (signo == SIGINT)
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shouldRun = false;
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}
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int
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main()
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{
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signal(SIGINT, sig_handler);
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//! [Interesting]
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// Instantiate an mq303a sensor on analog pin A0
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// This device uses a heater powered from an analog I/O pin.
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// If using A0 as the data pin, then you need to use A1, as the heater
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// pin (if using a grove mq303a). For A1, we can use the D15 gpio,
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// setup as an output, and drive it low to power the heater.
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upm::MQ303A mq303a(0, 15);
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cout << "Enabling heater and waiting 2 minutes for warmup." << endl;
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mq303a.heaterEnable(true);
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upm_delay(120);
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cout << "This sensor may need to warm until the value drops below about 450." << endl;
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// Print the detected alcohol value every second
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while (shouldRun) {
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int val = mq303a.value();
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cout << "Alcohol detected (higher means stronger alcohol): " << val << endl;
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upm_delay(1);
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}
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//! [Interesting]
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cout << "Exiting" << endl;
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mq303a.heaterEnable(false);
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return 0;
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}
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