#include <stdint.h>
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Data Structures | |
| struct | bme280_calibration |
Typedefs | |
| typedef struct bme280_calibration | bme280_calibration_t |
Functions | |
| int | bme280_init (int) |
| void | bme280_deinit (int) |
| int | bme280_read (int) |
| int32_t | bme280_get_value (int, int) |
Macro Definition Documentation
◆ BME280_CALIBRATION_BLOCK1_SIZE
◆ BME280_CALIBRATION_BLOCK2_SIZE
◆ BME280_CHANNEL_HUMIDITY
◆ BME280_CHANNEL_PRESSURE
◆ BME280_CHANNEL_TEMPERATURE
◆ BME280_DATA_BLOCK_SIZE
◆ BME280_FILTER_16
◆ BME280_FILTER_2
◆ BME280_FILTER_4
◆ BME280_FILTER_8
◆ BME280_FILTER_OFF
◆ BME280_I2C_ADDRESS_LEFT
| #define BME280_I2C_ADDRESS_LEFT 0x76 |
Copyright (c) 2016-2020, ETH Zurich, Computer Engineering Group All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
- 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.
◆ BME280_I2C_ADDRESSES
| #define BME280_I2C_ADDRESSES { (BME280_I2C_ADDRESS_LEFT) } |
◆ BME280_ID
◆ BME280_MEASURING
◆ BME280_MODE_FORCE
◆ BME280_MODE_NORMAL
◆ BME280_MODE_SLEEP
◆ BME280_OVERSAMPLE_HUMIDITY_1
◆ BME280_OVERSAMPLE_HUMIDITY_16
◆ BME280_OVERSAMPLE_HUMIDITY_2
◆ BME280_OVERSAMPLE_HUMIDITY_4
◆ BME280_OVERSAMPLE_HUMIDITY_8
◆ BME280_OVERSAMPLE_HUMIDITY_OFF
◆ BME280_OVERSAMPLE_PRESSURE_1
◆ BME280_OVERSAMPLE_PRESSURE_16
◆ BME280_OVERSAMPLE_PRESSURE_2
◆ BME280_OVERSAMPLE_PRESSURE_4
◆ BME280_OVERSAMPLE_PRESSURE_8
◆ BME280_OVERSAMPLE_PRESSURE_OFF
◆ BME280_OVERSAMPLE_TEMPERATURE_1
◆ BME280_OVERSAMPLE_TEMPERATURE_16
◆ BME280_OVERSAMPLE_TEMPERATURE_2
◆ BME280_OVERSAMPLE_TEMPERATURE_4
◆ BME280_OVERSAMPLE_TEMPERATURE_8
◆ BME280_OVERSAMPLE_TEMPERATURE_OFF
◆ BME280_REG_CALIBRATION_BLOCK1
◆ BME280_REG_CALIBRATION_BLOCK2
◆ BME280_REG_CONFIG
◆ BME280_REG_CONTROL_HUMIDITY
◆ BME280_REG_CONTROL_MEASURE
◆ BME280_REG_HUMIDITY_LSB
◆ BME280_REG_HUMIDITY_MSB
◆ BME280_REG_ID
◆ BME280_REG_PRESSURE_LSB
◆ BME280_REG_PRESSURE_MSB
◆ BME280_REG_PRESSURE_XLSB
◆ BME280_REG_RESET
◆ BME280_REG_STATUS
◆ BME280_REG_TEMPERATURE_LSB
◆ BME280_REG_TEMPERATURE_MSB
◆ BME280_REG_TEMPERATURE_XLSB
◆ BME280_RESET_VALUE
◆ BME280_SPI_EN
◆ BME280_STANDBY_DURATION_0_5
◆ BME280_STANDBY_DURATION_10
◆ BME280_STANDBY_DURATION_1000
◆ BME280_STANDBY_DURATION_125
◆ BME280_STANDBY_DURATION_20
◆ BME280_STANDBY_DURATION_250
◆ BME280_STANDBY_DURATION_500
◆ BME280_STANDBY_DURATION_62
◆ BME280_UPDATE
Typedef Documentation
◆ bme280_calibration_t
| typedef struct bme280_calibration bme280_calibration_t |
Function Documentation
◆ bme280_deinit()
| void bme280_deinit | ( | int | sensor_identifier | ) |
◆ bme280_get_value()
| int32_t bme280_get_value | ( | 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
- Sensor value in lux
Definition at line 237 of file bme280.c.
References BME280_CHANNEL_HUMIDITY, BME280_CHANNEL_PRESSURE, BME280_CHANNEL_TEMPERATURE, bme280_get_index(), bme280_humidity, bme280_pressure, and bme280_temperature.
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◆ bme280_init()
| int bme280_init | ( | int | sensor_identifier | ) |
Initialize the BME280 ambient sensor.
- Parameters
-
sensor_identifier The I2C address of the sensor
- Returns
- Returns 0 on success, negative on failure with errno set accordingly
Definition at line 144 of file bme280.c.
References bme280_get_id(), BME280_ID, bme280_read_calibration(), bme280_set_parameters(), rl_log(), RL_LOG_ERROR, sensor_bus, sensors_get_bus(), and sensors_init_comm().
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◆ bme280_read()
| int bme280_read | ( | int | sensor_identifier | ) |
Read the sensor values.
- Parameters
-
sensor_identifier The I2C address of the sensor
- Returns
- Returns 0 on success, negative on failure with errno set accordingly
Definition at line 193 of file bme280.c.
References BME280_DATA_BLOCK_SIZE, bme280_get_index(), bme280_humidity, bme280_pressure, BME280_REG_PRESSURE_MSB, bme280_temperature, data, rl_log(), RL_LOG_ERROR, sensor_bus, sensors_get_bus(), and sensors_init_comm().
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