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922e0cc26b
To make room for UPM C and C++ sensor code to coexist, all UPM
C++ headers have been renamed from h -> hpp. This commit contains
updates to documentation, includes, cmake collateral, examples, and
swig interface files.
* Renamed all cxx/cpp header files which contain the string
'copyright intel' from .h -> .hpp (if not already hpp).
* Replaced all references to .h with .hpp in documentation,
source files, cmake collateral, example code, and swig interface
files.
* Replaced cmake variable module_h with module_hpp.
* Intentionally left upm.h since this file currently does not
contain code (documentation only).
Signed-off-by: Noel Eck <noel.eck@intel.com>
104 lines
3.0 KiB
C++
104 lines
3.0 KiB
C++
/*
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* Author: Yevgeniy Kiveisha <yevgeniy.kiveisha@intel.com>
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* Contributions: Jon Trulson <jtlulson@ics.com>
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* Copyright (c) 2014 Intel Corporation.
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*
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* Credits to Seeed Studeo.
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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 <unistd.h>
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#include <stdlib.h>
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#include <stdexcept>
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#include "th02.hpp"
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using namespace std;
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using namespace upm;
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TH02::TH02 (int bus, uint8_t addr) : m_i2c(bus) {
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m_addr = addr;
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m_name = "TH02";
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mraa::Result ret = m_i2c.address(m_addr);
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if (ret != mraa::SUCCESS) {
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throw std::invalid_argument(std::string(__FUNCTION__) +
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": mraa_i2c_address() failed");
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}
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}
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TH02::~TH02 () {
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}
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float
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TH02::getTemperature () {
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uint16_t temperature = 0;
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/* Start a new temperature conversion */
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if (m_i2c.writeReg(TH02_REG_CONFIG, TH02_CMD_MEASURE_TEMP)) {
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throw std::runtime_error(std::string(__FUNCTION__) +
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": I2c.writeReg() failed");
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return 0.0;
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}
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/* Wait until conversion is done */
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while (getStatus() == false);
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temperature = m_i2c.readReg(TH02_REG_DATA_H) << 8;
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temperature |= m_i2c.readReg(TH02_REG_DATA_L);
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temperature >>= 2;
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return ((float(temperature) / 32.0) - 50.0);
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}
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float
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TH02::getHumidity () {
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uint16_t humidity = 0;
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/* Start a new humidity conversion */
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if (m_i2c.writeReg(TH02_REG_CONFIG, TH02_CMD_MEASURE_HUMI)) {
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throw std::runtime_error(std::string(__FUNCTION__) +
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": I2c.writeReg() failed");
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return 0.0;
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}
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/* Wait until conversion is done */
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while (getStatus() == false);
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humidity = m_i2c.readReg(TH02_REG_DATA_H) << 8;
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humidity |= m_i2c.readReg(TH02_REG_DATA_L);
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humidity >>= 4;
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return ((float(humidity) / 16.0) - 24.0);
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}
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bool
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TH02::getStatus () {
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uint8_t status = m_i2c.readReg(TH02_REG_STATUS);
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if (status & TH02_STATUS_RDY_MASK)
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return false; // NOT ready
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else
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return true; // ready
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}
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