57c0c8c235
Ran clang-format on modified files Signed-off-by: Serban Waltter <serban.waltter@rinftech.com> Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
88 lines
2.3 KiB
C++
88 lines
2.3 KiB
C++
/*
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* Author: Zion Orent <zorent@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 <iostream>
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#include <stdexcept>
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#include <string>
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#include "groveemg.hpp"
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using namespace upm;
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using namespace std;
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GroveEMG::GroveEMG(int pin)
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{
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if (!(m_aio = mraa_aio_init(pin))) {
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throw std::invalid_argument(std::string(__FUNCTION__) +
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": mraa_aio_init() failed, invalid pin?");
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return;
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}
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}
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GroveEMG::~GroveEMG()
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{
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mraa_aio_close(m_aio);
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}
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void
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GroveEMG::calibrate()
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{
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int val, sum = 0;
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for (int i = 0; i < 1100; i++) {
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val = mraa_aio_read(m_aio);
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if (val != -1)
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throw std::runtime_error(std::string(__FUNCTION__) + ": Failed to do an aio read.");
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sum += val;
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usleep(1000);
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}
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sum /= 1100;
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cout << "Static analog data = " << sum << endl;
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}
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int
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GroveEMG::value()
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{
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int val = mraa_aio_read(m_aio);
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return val;
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}
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float
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GroveEMG::getVolts()
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{
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float val = mraa_aio_read_float(m_aio);
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if (val < 0)
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return val;
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/* Apply raw scale */
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val *= this->m_scale;
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/* Scale to aRef */
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val *= this->m_aRef;
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/* Apply the offset in volts */
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val += this->m_offset;
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return val;
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} |