BMP280 - Barometric Pressure Sensor

Description

Driver for the Bosch Sensortec BMP280 barometric pressure sensor.


BMP280 example

Basic example for performing pressure measurement: 

#include "sl_i2cspm_instances.h"
#include "sl_bmp280.h"

int main( void )
{

  ...

  float pressure;

  sl_bmp280_init(sl_i2cspm_sensor_env);
  sl_bmp280_measure_pressure(sl_i2cspm_sensor_env, &pressure);

  ...

}

Data Structures

struct sl_bmp280_config
Structure to configure the BMP280 device.

Functions

sl_status_t sl_bmp280_init (sl_i2cspm_t *i2cspm)
Initialize the barometric pressure sensor chip.
void sl_bmp280_deinit (sl_i2cspm_t *i2cspm)
De-initialize the barometric pressure module.
sl_status_t sl_bmp280_configure (sl_i2cspm_t *i2cspm, sl_bmp280_config_t *cfg)
Configure the barometric pressure sensor.
sl_status_t sl_bmp280_measure_temperature (sl_i2cspm_t *i2cspm, float *temperature)
Initiate temperature measurement on the barometric pressure sensor and read temperature from it.
sl_status_t sl_bmp280_measure_pressure (sl_i2cspm_t *i2cspm, float *pressure)
Initiate pressure measurement on the barometric pressure sensor and read pressure from it.

Function Documentation

◆ sl_bmp280_init()

sl_status_t sl_bmp280_init ( sl_i2cspm_t * i2cspm )

Initialize the barometric pressure sensor chip.

Parameters
[in] i2cspm The I2CSPM instance to use.
Return values
SL_STATUS_OK Success
SL_STATUS_FAIL Initialization failed

◆ sl_bmp280_deinit()

void sl_bmp280_deinit ( sl_i2cspm_t * i2cspm )

De-initialize the barometric pressure module.

Parameters
[in] i2cspm The I2CSPM instance to use.

◆ sl_bmp280_configure()

sl_status_t sl_bmp280_configure ( sl_i2cspm_t * i2cspm,
sl_bmp280_config_t * cfg
)

Configure the barometric pressure sensor.

Parameters
[in] i2cspm The I2CSPM instance to use.
[in] cfg Structure, which holds the configuration parameters
Return values
SL_STATUS_OK Success
SL_STATUS_FAIL Sensor configuration failed

◆ sl_bmp280_measure_temperature()

sl_status_t sl_bmp280_measure_temperature ( sl_i2cspm_t * i2cspm,
float * temperature
)

Initiate temperature measurement on the barometric pressure sensor and read temperature from it.

Parameters
[in] i2cspm The I2CSPM instance to use.
[out] temperature The measured temperature in degrees Celsius
Return values
SL_STATUS_OK Success
SL_STATUS_FAIL Failure during temperature measurement/read

◆ sl_bmp280_measure_pressure()

sl_status_t sl_bmp280_measure_pressure ( sl_i2cspm_t * i2cspm,
float * pressure
)

Initiate pressure measurement on the barometric pressure sensor and read pressure from it.

Parameters
[in] i2cspm The I2CSPM instance to use.
[out] pressure The measured pressure in millibars.
Return values
SL_STATUS_OK Success
SL_STATUS_FAIL Failure during pressure measurement/read