diff options
Diffstat (limited to 'peripheral/libupm/src/dfrph/dfrph.cxx')
-rw-r--r-- | peripheral/libupm/src/dfrph/dfrph.cxx | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/peripheral/libupm/src/dfrph/dfrph.cxx b/peripheral/libupm/src/dfrph/dfrph.cxx deleted file mode 100644 index a984af7..0000000 --- a/peripheral/libupm/src/dfrph/dfrph.cxx +++ /dev/null @@ -1,74 +0,0 @@ -/* - * Author: Jon Trulson <jtrulson@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 "dfrph.h" - -using namespace std; -using namespace upm; - -DFRPH::DFRPH(int pin, float aref) : - m_aio(pin) -{ - m_aRes = (1 << m_aio.getBit()); - m_aref = aref; - - m_offset = 0.0; -} - -DFRPH::~DFRPH() -{ -} - -float DFRPH::volts() -{ - int val = m_aio.read(); - - return(val * (m_aref / m_aRes)); -} - -void DFRPH::setOffset(float offset) -{ - m_offset = offset; -} - -float DFRPH::pH(unsigned int samples) -{ - if (!samples) - samples = 1; - - float sum = 0.0; - - for (int i=0; i<samples; i++) - { - sum += volts(); - usleep(20000); - } - - sum /= samples; - - // 3.5 is a 'magic' DFRobot number. Seems to work though :) - return (3.5 * sum + m_offset); -} |