#include "sensor.h"
#include "bme280.h"

Include dependency graph for bme280.c:

Functions
int	BME280_init (int sensor_identifier)

void	BME280_close (int sensor_identifier)

int	BME280_read (int sensor_identifier)

int32_t	BME280_getValue (int sensor_identifier, int channel)

int	BME280_getID (void)

int	BME280_readCalibration (int sensor_identifier)

int	BME280_setParameters (int sensor_identifier)

int	BME280_getIndex (int sensor_identifier)

int32_t	BME280_compensate_temperature_fine (int sensor_identifier, int32_t temperature_raw)

int32_t	BME280_compensate_temperature (int sensor_identifier, int32_t temperature_raw)

uint32_t	BME280_compensate_preasure (int sensor_identifier, int32_t preasure_raw, int32_t temperature_raw)

uint32_t	BME280_compensate_humidity (int sensor_identifier, int32_t humidity_raw, int32_t temperature_raw)

Variables
const int	BME280_sensors [] = BME280_I2C_ADDRESSES

int32_t	BME280_temperature [sizeof(BME280_sensors)] = {0}

int32_t	BME280_humidity [sizeof(BME280_sensors)] = {0}

int32_t	BME280_preasure [sizeof(BME280_sensors)] = {0}

struct BME280_calibration_t	BME280_calibration [sizeof(BME280_sensors)]

Function Documentation

void BME280_close ( int sensor_identifier )

Close TSL sensor.

Parameters

sensor_identifier The I2C address of the sensor

Definition at line 89 of file bme280.c.

uint32_t BME280_compensate_humidity	(	int	sensor_identifier,
		int32_t	humidity_raw,
		int32_t	temperature_raw
	)

Get the compensated relative humidity in micros (0.0001 percents).

Parameters

sensor_identifier	The I2C address of the sensor
humidity_raw	The raw humidity reading
temperature_raw	The raw temperature reading

Returns: The compensated humidity in micros (0.0001 percents)

Definition at line 397 of file bme280.c.

References BME280_calibration, BME280_compensate_temperature_fine(), BME280_getIndex(), BME280_calibration_t::H1, BME280_calibration_t::H2, BME280_calibration_t::H3, BME280_calibration_t::H4, BME280_calibration_t::H5, and BME280_calibration_t::H6.

Referenced by BME280_read().

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uint32_t BME280_compensate_preasure	(	int	sensor_identifier,
		int32_t	preasure_raw,
		int32_t	temperature_raw
	)

Get the compensated preasure in milli Pascal.

Parameters

sensor_identifier	The I2C address of the sensor
preasure_raw	The raw preasure reading
temperature_raw	The raw temperature reading

Returns: The compensated preasure in 0.001 Pascal

Definition at line 352 of file bme280.c.

References BME280_calibration, BME280_compensate_temperature_fine(), BME280_getIndex(), BME280_calibration_t::P1, BME280_calibration_t::P2, BME280_calibration_t::P3, BME280_calibration_t::P4, BME280_calibration_t::P5, BME280_calibration_t::P6, BME280_calibration_t::P7, BME280_calibration_t::P8, and BME280_calibration_t::P9.

Referenced by BME280_read().

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int32_t BME280_compensate_temperature	(	int	sensor_identifier,
		int32_t	temperature_raw
	)

Get the compensated temperature in milli degree centigrade.

Parameters

sensor_identifier	The I2C address of the sensor
temperature_raw	The raw temperature reading

Returns: The compensated temperature in 0.001 degree centigrade

Definition at line 337 of file bme280.c.

References BME280_compensate_temperature_fine().

Referenced by BME280_read().

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int32_t BME280_compensate_temperature_fine	(	int	sensor_identifier,
		int32_t	temperature_raw
	)

Get fine grained temperature compensation value for further processing.

Parameters

sensor_identifier	The I2C address of the sensor
temperature_raw	The raw temperature reading

Returns: Fine grained, compensated temperature (arbritrary unit)

Definition at line 310 of file bme280.c.

References BME280_calibration, BME280_getIndex(), BME280_calibration_t::T1, BME280_calibration_t::T2, and BME280_calibration_t::T3.

Referenced by BME280_compensate_humidity(), BME280_compensate_preasure(), and BME280_compensate_temperature().

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int BME280_getID ( void )

Get the device ID

Parameters

sensor_identifier The I2C address of the sensor

Returns: Devie ID or negative status code

Definition at line 169 of file bme280.c.

References BME280_REG_ID, ERROR, rl_log(), sensor_bus, and Sensors_getSharedBus().

Referenced by BME280_init().

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int BME280_getIndex ( int sensor_identifier )

Get the index of the sensor with specified address.

Parameters

sensor_identifier The sensor address used to look up the index

Returns: The index of the sensor, or if not found -1

Definition at line 293 of file bme280.c.

References BME280_sensors.

Referenced by BME280_compensate_humidity(), BME280_compensate_preasure(), BME280_compensate_temperature_fine(), BME280_getValue(), BME280_read(), and BME280_readCalibration().

int32_t BME280_getValue	(	int	sensor_identifier,
		int	channel
	)

Get the values read from the sensor

Parameters

sensor_identifier	The I2C address of the sensor
channel	The channel of the sensor to get

Returns: Channel value

Definition at line 146 of file bme280.c.

References BME280_CHANNEL_HUMIDITY, BME280_CHANNEL_PREASURE, BME280_CHANNEL_TEMPERATURE, BME280_getIndex(), BME280_humidity, BME280_preasure, and BME280_temperature.

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int BME280_init ( int sensor_identifier )

Initialize the light sensor

Parameters

sensor_identifier The I2C address of the sensor

Returns: return code

Definition at line 48 of file bme280.c.

References BME280_getID(), BME280_ID, BME280_readCalibration(), BME280_setParameters(), ERROR, FAILURE, rl_log(), sensor_bus, Sensors_getSharedBus(), Sensors_initSharedComm(), and SUCCESS.

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int BME280_read ( int sensor_identifier )

Read the sensor values.

Parameters

sensor_identifier The I2C address of the sensor

Returns: Value in lux

Definition at line 98 of file bme280.c.

References BME280_compensate_humidity(), BME280_compensate_preasure(), BME280_compensate_temperature(), BME280_DATA_BLOCK_SIZE, BME280_getIndex(), BME280_humidity, BME280_preasure, BME280_REG_PREASURE_MSB, BME280_temperature, ERROR, FAILURE, rl_log(), sensor_bus, Sensors_getSharedBus(), Sensors_initSharedComm(), and SUCCESS.

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int BME280_readCalibration ( int sensor_identifier )

Read the sensor specifc calibration values.

Parameters

sensor_identifier The I2C address of the sensor

Returns: Status code

Definition at line 185 of file bme280.c.

Referenced by BME280_init().

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int BME280_setParameters ( int sensor_identifier )

Set the sensor parameter to default for continuous sensing.

Returns: Status code

Definition at line 252 of file bme280.c.

References BME280_FILTER_OFF, BME280_MODE_NORMAL, BME280_OVERSAMPLE_HUMIDITY_1, BME280_OVERSAMPLE_PREASURE_1, BME280_OVERSAMPLE_TEMPERATURE_1, BME280_REG_CONFIG, BME280_REG_CONTROL_HUMIDITY, BME280_REG_CONTROL_MEASURE, BME280_STANDBY_DURATION_250, ERROR, FAILURE, rl_log(), sensor_bus, Sensors_getSharedBus(), and SUCCESS.

Referenced by BME280_init().

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Variable Documentation

struct BME280_calibration_t BME280_calibration[sizeof(BME280_sensors)]

Definition at line 41 of file bme280.c.

Referenced by BME280_compensate_humidity(), BME280_compensate_preasure(), BME280_compensate_temperature_fine(), and BME280_readCalibration().

int32_t BME280_humidity[sizeof(BME280_sensors)] = {0}

Definition at line 38 of file bme280.c.

Referenced by BME280_getValue(), and BME280_read().

int32_t BME280_preasure[sizeof(BME280_sensors)] = {0}

Definition at line 39 of file bme280.c.

Referenced by BME280_getValue(), and BME280_read().

const int BME280_sensors[] = BME280_I2C_ADDRESSES

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Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Definition at line 35 of file bme280.c.

Referenced by BME280_getIndex().

int32_t BME280_temperature[sizeof(BME280_sensors)] = {0}

Definition at line 37 of file bme280.c.

Referenced by BME280_getValue(), and BME280_read().

Functions

Variables

Function Documentation

Variable Documentation