bme280_sensor.h File Reference

Interface for BME280 environmental sensor over I²C. More...

#include "i2c_bus.h"
#include "bme280.h"
#include "esp_log.h"
#include "esp_err.h"

Go to the source code of this file.

Macros
#define	BME280_I2C_ADDR   (0x77)
	Default I²C address for BME280 sensors.

Typedefs
typedef uint8_t	i2c_addr_t
	Type for I²C addresses.
typedef float	t_celsius_t
	Type for temperature [°C].
typedef float	rh_percent_t
	Type for relative humidity [%].
typedef float	p_hpa_t
	Type for atmospheric pressure [hPa].

Functions
bme280_handle_t	bme280_i2c_init (i2c_bus_handle_t bus, i2c_addr_t i2c_addr)
	Initialize a BME280 sensor on the specified I2C bus.
esp_err_t	bme280_i2c_read_measurement (bme280_handle_t sensor, t_celsius_t *t, rh_percent_t *h, p_hpa_t *p)
	Read temperature, humidity, and pressure from a BME280 sensor.
void	bme280_i2c_delete (bme280_handle_t sensor)
	Deinitialize a BME280 sensor and free associated resources.

Detailed Description

Interface for BME280 environmental sensor over I²C.

Author

Adrien Chevrier

Copyright

Copyright (c) 2026 Adrien Chevrier. Under AGPL-3.0-or-later license.

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License along with this program. If not, see https://www.gnu.org/licenses/.

Version

0.1

Date

2026-02-04