BME280 Temperature, Pressure, and Humidity Sensor Driver. More...
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Data Structures | |
| struct | driver_bme280_data_t |
| BME280 measurement data. More... | |
| struct | driver_bme280_t |
| BME280 driver instance. More... | |
Enumerations | |
| enum | driver_bme280_oversampling_t { DRIVER_BME280_OVERSAMPLING_NONE = 0, DRIVER_BME280_OVERSAMPLING_1X = 1, DRIVER_BME280_OVERSAMPLING_2X = 2, DRIVER_BME280_OVERSAMPLING_4X = 3, DRIVER_BME280_OVERSAMPLING_8X = 4, DRIVER_BME280_OVERSAMPLING_16X = 5 } |
| BME280 oversampling settings. More... | |
| enum | driver_bme280_filter_t { DRIVER_BME280_FILTER_OFF = 0, DRIVER_BME280_FILTER_2 = 1, DRIVER_BME280_FILTER_4 = 2, DRIVER_BME280_FILTER_8 = 3, DRIVER_BME280_FILTER_16 = 4 } |
| BME280 IIR filter coefficients. More... | |
Functions | |
| bool | driver_bme280_init_i2c (driver_bme280_t *driver, hw_i2c_t *i2c, uint8_t addr_offset) |
| Initialize BME280 with I2C interface and default settingsInitializes with default settings: 1x oversampling for all sensors, filter off. More... | |
| bool | driver_bme280_init_i2c_with_config (driver_bme280_t *driver, hw_i2c_t *i2c, uint8_t addr_offset, driver_bme280_oversampling_t temp_os, driver_bme280_oversampling_t press_os, driver_bme280_oversampling_t hum_os, driver_bme280_filter_t filter) |
| Initialize BME280 with I2C interface and custom settingsAllows configuration of oversampling and filter settings. More... | |
| bool | driver_bme280_valid (driver_bme280_t *driver) |
| Check if driver instance is valid. More... | |
| void | driver_bme280_finalize (driver_bme280_t *driver) |
| Finalize and power down BME280. More... | |
| void | driver_bme280_set_temp_offset (driver_bme280_t *driver, float offset) |
| Set temperature offset for calibrationUse this to compensate for self-heating or other temperature offsets. More... | |
| bool | driver_bme280_read_data (driver_bme280_t *driver, driver_bme280_data_t *data) |
| Read all sensor data (temperature, pressure, humidity)Triggers a forced measurement (single shot), waits for completion, and reads all three sensor values in a single transaction. More... | |
| float | driver_bme280_calculate_altitude (const driver_bme280_data_t *data, float sea_level_pressure) |
| Calculate altitude from pressureUses the international barometric formula. More... | |
| float | driver_bme280_calculate_sea_level_pressure (const driver_bme280_data_t *data, float altitude) |
| Calculate sea level pressure from altitude. More... | |
Detailed Description
BME280 Temperature, Pressure, and Humidity Sensor Driver.
Definition in file drivers_bme280.h.