| /* |
| * Author: Zion Orent <zorent@ics.com> |
| * Copyright (c) 2015 Intel Corporation. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining |
| * a copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sublicense, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be |
| * included in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE |
| * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
| * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
| * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| #include <iostream> |
| #include <string> |
| #include <stdexcept> |
| |
| #include "grovegsr.h" |
| |
| using namespace upm; |
| using namespace std; |
| |
| GroveGSR::GroveGSR(int pin) |
| { |
| if ( !(m_aio = mraa_aio_init(pin)) ) |
| { |
| throw std::invalid_argument(std::string(__FUNCTION__) + |
| ": mraa_aio_init() failed, invalid pin?"); |
| return; |
| } |
| } |
| |
| GroveGSR::~GroveGSR() |
| { |
| mraa_aio_close(m_aio); |
| } |
| |
| void GroveGSR::calibrate() |
| { |
| sleep(1); |
| int val, threshold, sum = 0; |
| |
| for(int i=0; i<500; i++) |
| { |
| val = mraa_aio_read(m_aio); |
| sum += val; |
| usleep(5000); |
| } |
| threshold = sum / 500; |
| cout << "Threshold = " << threshold << endl; |
| } |
| |
| int GroveGSR::value() |
| { |
| int val = mraa_aio_read(m_aio); |
| return val; |
| } |