SensorBmp280.h File Reference

Detailed Description

Driver for the Bosch BMP280 Pressure Sensor.

Driver include

This header file should be included in an application as follows:

#include <ti/mw/sensors/SensorBmp280.h>

#include "stdint.h"
#include "stdbool.h"

Go to the source code of this file.

Macros
#define	SENSOR_BMP280_DATASIZE   6

Functions
bool	SensorBmp280_init (void)
	Initialize the sensor. More...
void	SensorBmp280_enable (bool enable)
	Enable/disable measurement cycle. More...
bool	SensorBmp280_read (uint8_t *pData)
	Read temperature and pressure data. More...
void	SensorBmp280_convert (uint8_t *pData, int32_t *pTemp, uint32_t *pPress)
	Convert raw data to object and ambiance temperature. More...
bool	SensorBmp280_test (void)
	Run a sensor self-test. More...

Macro Definition Documentation

SENSOR_BMP280_DATASIZE

#define SENSOR_BMP280_DATASIZE   6

Size of the data read from the sensor

Function Documentation

SensorBmp280_init()

bool SensorBmp280_init

(

void

)

Initialize the sensor.

Reads and stores the calibration data for later use, then resets the sensor.

Returns

true if success

SensorBmp280_enable()

void SensorBmp280_enable

(

bool

enable

)

Enable/disable measurement cycle.

This function enables or disables measurement according to the value of enable. When enabled the sensor uses forced mode, 4x pressure oversampling, and 1x temperature oversampling. When disabled the sensor is put in low power mode.

Parameters

enable

- flag to turn the sensor on/off.

SensorBmp280_read()

bool SensorBmp280_read

(

uint8_t *

pData

)

Read temperature and pressure data.

Reads 6 bytes of data into the provided buffer (3 bytes of temperature followed by 3 bytes of pressure data. The data need to be process further using the calibration data to calculate the atmospheric pressure.

Parameters

pData

- buffer for raw data, temperature and pressure (6 bytes)

Returns

true if read operation succeeds and the data are valid

SensorBmp280_convert()

void SensorBmp280_convert	(	uint8_t *	pData,
		int32_t *	pTemp,
		uint32_t *	pPress
	)

Convert raw data to object and ambiance temperature.

Calculate pressure and temperature using provided raw data and the stored calibration data.

Parameters

pData	- buffer for raw data from sensor
pTemp	- converted temperature
pPress	- converted pressure

SensorBmp280_test()

bool SensorBmp280_test

(

void

)

Run a sensor self-test.

Returns

true if passed