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048f1ac08e
Updated the examples to comprehend transitive dependencies. This means
that each example target will no longer have a giant list of -I includes
(the examples at the end of the list had includes for all previous
examples, upwards of 200 -I's on the command line).
* Created a CMakeLists.txt in the upm/examples directory, moved
common functionality to this level.
* C/C++ examples now look to the filename for their dependency
target name, ie; gas-mq2.cxx adds a dependency to the 'gas' target
* Updated a handful of C/C++ example names to reflect this
* Example CMake flow - glob the list of files, add targets for any
special case examples, then att targets for all the rest
Signed-off-by: Noel Eck <noel.eck@intel.com>
80 lines
2.3 KiB
C++
80 lines
2.3 KiB
C++
/*
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* Author: Yevgeniy Kiveisha <yevgeniy.kiveisha@intel.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 <unistd.h>
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#include <iostream>
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#include "mq3.hpp"
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#include <signal.h>
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#include <stdlib.h>
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#include <sys/time.h>
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int is_running = 0;
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uint16_t buffer [128];
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upm::MQ3 *sensor = NULL;
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void
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sig_handler(int signo)
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{
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printf("got signal\n");
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if (signo == SIGINT) {
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is_running = 1;
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}
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}
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//! [Interesting]
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int
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main(int argc, char **argv)
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{
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// Attach gas sensor to A0
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sensor = new upm::MQ3(0);
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signal(SIGINT, sig_handler);
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thresholdContext ctx;
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ctx.averageReading = 0;
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ctx.runningAverage = 0;
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ctx.averagedOver = 2;
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// Infinite loop, ends when script is cancelled
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// Repeatedly, take a sample every 2 milliseconds;
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// find the average of 128 samples; and
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// print a running graph of the averages using a resolution of 5
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while (!is_running) {
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int len = sensor->getSampledWindow (2, 128, buffer);
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if (len) {
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int thresh = sensor->findThreshold (&ctx, 30, buffer, len);
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sensor->printGraph(&ctx, 5);
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if (thresh) {
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// do something ....
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}
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}
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}
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std::cout << "exiting application" << std::endl;
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delete sensor;
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return 0;
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}
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//! [Interesting]
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