bme680_init.c File Reference

Sensor driver for the Bosch BME680 air quality sensor. This library supports i2c and 4-wire SPI connections, reads temperature, pressure, relative humidity, and VOC levels, and provides limited support for adjusting the sensors settings. More...

#include "bme680.h"

Functions
bme680_t *	bme680_openI2C (i2c *i2c_bus, char i2c_addr)
	Initialize a BME680 sensor into i2c mode. More...
bme680_t *	bme680_openSPI (char pin_sdo, char pin_clk, char pin_sdi, char pin_cs)
	Initialize a BME680 sensor into 4-wire SPI mode. More...
void	bme680_close (bme680_t *dev)
	Close and free the memory used by the bme680 device structure. More...

Detailed Description

Sensor driver for the Bosch BME680 air quality sensor. This library supports i2c and 4-wire SPI connections, reads temperature, pressure, relative humidity, and VOC levels, and provides limited support for adjusting the sensors settings.

Author

Matthew Matz

Version

0.5

Copyright

Copyright (C) Parallax, Inc. 2019. All Rights MIT Licensed.

Function Documentation

bme680_close()

void bme680_close

(

bme680_t *

dev

)

Close and free the memory used by the bme680 device structure.

Parameters

*dev	pointer to the bme680 device.

bme680_openI2C()

bme680_t* bme680_openI2C	(	i2c *	i2c_bus,
		char	i2c_addr
	)

Initialize a BME680 sensor into i2c mode.

Parameters

*i2c_bus	pointer to an i2c bus that has already been opened with i2c_open();.
i2c_addr	the i2c address of the device, usualy 0x76 or 0x77.

Returns

bme680_t device identifier for use with functions in bme680 library.

bme680_openSPI()

bme680_t* bme680_openSPI	(	char	pin_sdo,
		char	pin_clk,
		char	pin_sdi,
		char	pin_cs
	)

Initialize a BME680 sensor into 4-wire SPI mode.

Parameters

pin_sdo	the BME680's SDO (MISO) pin.
pin_clk	the BME680's CLK (clock) pin.
pin_sdi	the BME680's SDI (MOSI) pin.
pin_cs	the BME680's CS (select) pin.

Returns

bme680_t device identifier for use with functions in bme680 library.