| /* |
| * 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); |
| }; |
| |
| } |