BMP280 - Barometric Pressure Sensor#

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);

  ...

}

Modules#

sl_bmp280_config_t

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.

Definition at line 91 of file hardware/driver/bmp280/inc/sl_bmp280.h

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.

Definition at line 100 of file hardware/driver/bmp280/inc/sl_bmp280.h

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

Note

Make sure to pass by Sleep Mode before switching between Forced mode and normal mode. Refer to datasheet for more details.

Definition at line 119 of file hardware/driver/bmp280/inc/sl_bmp280.h

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

Definition at line 135 of file hardware/driver/bmp280/inc/sl_bmp280.h

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.

Definition at line 151 of file hardware/driver/bmp280/inc/sl_bmp280.h