e58c651b67
Added the C source for the flex sensor with necessary changes to cmake,
examples, and docs.
* Renamed all files with groveslide to slide
* Replaced all instances of groveslide with slide
* Added C source for slide sensor
* Updated all cmake files
* Added C example for slide sensor
* Split out slide sensor from grove library
Signed-off-by: Noel Eck <noel.eck@intel.com>
68 lines
2.0 KiB
C++
68 lines
2.0 KiB
C++
/*
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* Authors: Brendan Le Foll <brendan.le.foll@intel.com>
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* Mihai Tudor Panu <mihai.tudor.panu@intel.com>
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* Sarah Knepper <sarah.knepper@intel.com>
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* Copyright (c) 2014 - 2016 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 <string>
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#include <stdexcept>
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#include "slide.hpp"
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#include "math.h"
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using namespace upm;
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Slide::Slide(unsigned int pin, float ref_voltage)
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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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m_ref_voltage = ref_voltage;
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}
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Slide::~Slide()
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{
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mraa_aio_close(m_aio);
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}
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float Slide::raw_value()
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{
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return (float) mraa_aio_read(m_aio);
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}
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float Slide::voltage_value()
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{
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// conversion to Volts
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float a = Slide::raw_value();
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a = m_ref_voltage * a / 1023.0 ;
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return a;
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}
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float Slide::ref_voltage()
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{
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return m_ref_voltage;
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}
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