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/*
* Author: Scott Ware <scott.r.ware@intel.com>
* Copyright (c) 2014 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.
*/
#pragma once
#include <mraa/i2c.hpp>
#include "upm/iTemperatureSensor.hpp"
#include "upm/iHumiditySensor.hpp"
/* ADDRESS AND NOT_FOUND VALUE */
#define SI7005_ADDRESS ( 0x40 )
#define SI7005_NOT_FOUND ( 0x00 )
namespace upm {
/**
* @brief Si7005 digital I2C humidity and temperature sensor library
* @defgroup si7005 libupm-si7005
* @ingroup i2c silabs temp itemperaturesensor
*/
/**
* @brief C++ API for SI7005 sensor (Humidity And Temperature Sensor)
*
* The Silicon Labs Si7005
* [SI7005](https://www.silabs.com/Support%20Documents/TechnicalDocs/Si7005.pdf)
* is a digital relative humidity and temperature sensor.
*
* @library si7005
* @sensor si7005
* @comname Silicon Labs Si7005 LED lighting controller
* @altname Si7005
* @type temp
* @man silabs
* @con i2c
* @if itemperaturesensor
*/
class SI7005 : public ITemperatureSensor, public IHumiditySensor {
public:
/**
* Instantiates a SI7005 object
*
* @param bus number of used bus
* @param devAddr address of used i2c device
* @param pin mraa gpio number for chip select pin
*/
SI7005 (int bus, int pin);
/**
* SI7005 object destructor.
*/
~SI7005 ();
/**
* Get temperature measurement.
*/
uint16_t getTemperatureRaw ();
/**
* Get temperature measurement.
*/
int getTemperatureCelcius ();
/**
* Get relative humidity measurement.
*/
uint16_t getHumidityRaw ();
/**
* Get relative humidity measurement.
*/
int getHumidityRelative ();
/**
* Returns sensor module name
*/
const char* getModuleName() { return "si7005"; }
/**
* Detects the sensor to ensure it is connected as required.
*/
bool isAvailable();
/**
* Enables the integrated heating element.
*/
void enableHeater();
/**
* Disables the integrated heating element.
*/
void disableHeater();
/**
* Enables fast conversion mode.
*/
void enableFastConversionMode();
/**
* Enables fast conversion mode.
*/
void disableFastConversionMode();
private:
int m_controlAddr;
int m_bus;
int m_pin;
mraa::I2c* m_i2c;
mraa::Result status;
uint8_t config_reg;
float last_temperature;
uint16_t getMeasurement(uint8_t configValue);
};
}
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