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This driver implements support for the Sparkfun Single Lead Heart Rate Monitor, based on the AD8232 chip. It simply outputs ADC data that needs to be sent somewhere for plotting. The Sparkfun page has some suggestions. Alternatively, if you have an oscilliscope that supports a 'Roll' mode, you can get an EKG-like display by measuring the OUT pin. https://www.sparkfun.com/products/12650 Signed-off-by: Jon Trulson <jtrulson@ics.com> Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
66 lines
2.0 KiB
C++
66 lines
2.0 KiB
C++
/*
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* Author: Jon Trulson <jtrulson@ics.com>
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* Copyright (c) 2015 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 <signal.h>
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#include "ad8232.h"
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using namespace std;
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bool shouldRun = true;
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void 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 main()
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{
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signal(SIGINT, sig_handler);
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//! [Interesting]
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// Instantiate a Ad8232 sensor on digital pins 10 (LO+), 11 (LO-)
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// and an analog pin, 0 (OUTPUT)
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upm::AD8232 *ad8232 = new upm::AD8232(10, 11, 0);
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// Output the raw numbers from the ADC, for plotting elsewhere.
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// A return of 0 indicates a Lead Off (LO) condition.
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// In theory, this data could be fed to software like Processing
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// (https://www.processing.org/) to plot the data just like an
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// EKG you would see in a hospital.
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while (shouldRun)
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{
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cout << ad8232->value() << endl;
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usleep(1000);
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}
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//! [Interesting]
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cout << "Exiting" << endl;
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delete ad8232;
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return 0;
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}
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