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LibDriver BMP280
The BMP280 is an absolute barometric pressure sensor, which is especially feasible for mobile applications. Its small dimensions and its low power consumption allow for the implementation in battery-powered devices such as mobile phones, GPS modules or watches. The BMP280 is based on Bosch’s proven piezo-resistive pressure sensor technology featuring high accuracy and linearity as well as long-term stability and high EMC robustness. Numerous device operation options guarantee for highest flexibility. The device is optimized in terms of power consumption, resolution and filter performance.
LibDriver BMP280 is a full-featured driver for BMP280, launched by LibDriver.It provides continuous reading, single reading and additional features. LibDriver is MISRA compliant.
Table of Contents
Instruction
/src includes LibDriver BMP280 source files.
/interface includes LibDriver BMP280 IIC, SPI platform independent template.
/test includes LibDriver BMP280 driver test code and this code can test the chip necessary function simply.
/example includes LibDriver BMP280 sample code.
/doc includes LibDriver BMP280 offline document.
/datasheet includes BMP280 datasheet.
/project includes the common Linux and MCU development board sample code. All projects use the shell script to debug the driver and the detail instruction can be found in each project’s README.md.
/misra includes the LibDriver MISRA code scanning results.
Install
Reference /interface IIC, SPI platform independent template and finish your platform IIC, SPI driver.
Add the /src directory, the interface driver for your platform, and your own drivers to your project, if you want to use the default example drivers, add the /example directory to your project.
Usage
You can refer to the examples in the /example directory to complete your own driver. If you want to use the default programming examples, here’s how to use them.
example basic
#include "driver_bmp280_basic.h"
uint8_t res;
uint32_t i;
float temperature_c;
float pressure_pa;
/* basic init */
res = bmp280_basic_init(BMP280_INTERFACE_IIC, BMP280_ADDRESS_ADO_LOW);
if (res != 0)
{
return 1;
}
...
/* loop */
for (i = 0; i < 3; i++)
{
/* delay 1000ms */
bmp280_interface_delay_ms(1000);
/* read data */
res = bmp280_basic_read((float *)&temperature_c, (float *)&pressure_pa);
if (res != 0)
{
(void)bmp280_basic_deinit();
return 1;
}
/* output */
bmp280_interface_debug_print("bmp280: %d/%d.\n", i + 1, 3);
bmp280_interface_debug_print("bmp280: temperature is %0.2fC.\n", temperature_c);
bmp280_interface_debug_print("bmp280: pressure is %0.2fPa.\n", pressure_pa);
...
}
...
/* deinit */
(void)bmp280_basic_deinit();
return 0;
example shot
#include "driver_bmp280_shot.h"
uint8_t res;
uint32_t i;
float temperature_c;
float pressure_pa;
/* shot init */
res = bmp280_shot_init(BMP280_INTERFACE_IIC, BMP280_ADDRESS_ADO_LOW);
if (res != 0)
{
return 1;
}
...
/* loop */
for (i = 0; i < 3; i++)
{
/* delay 1000ms */
bmp280_interface_delay_ms(1000);
/* read data */
res = bmp280_shot_read((float *)&temperature_c, (float *)&pressure_pa);
if (res != 0)
{
(void)bmp280_shot_deinit();
return 1;
}
/* output */
bmp280_interface_debug_print("bmp280: %d/%d.\n", i + 1, 3);
bmp280_interface_debug_print("bmp280: temperature is %0.2fC.\n", temperature_c);
bmp280_interface_debug_print("bmp280: pressure is %0.2fPa.\n", pressure_pa);
...
}
...
/* deinit */
(void)bmp280_shot_deinit();
return 0;
Document
Online documents: https://www.libdriver.com/docs/bmp280/index.html.
Offline documents: /doc/html/index.html.
Contributing
Please refer to CONTRIBUTING.md.
License
Copyright © 2015 - present LibDriver All rights reserved
The MIT License (MIT)
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the “Software”), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
Please send an e-mail to [email protected].
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