https://github.com/quard/bmx280
Bosch BME280/BMP280 pressure sensor light library
https://github.com/quard/bmx280
bme280 bmp280 bosch-sensor mcu sensor stm32
Last synced: 20 days ago
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Bosch BME280/BMP280 pressure sensor light library
- Host: GitHub
- URL: https://github.com/quard/bmx280
- Owner: Quard
- License: mit
- Created: 2020-09-18T04:47:19.000Z (over 4 years ago)
- Default Branch: master
- Last Pushed: 2020-09-18T04:48:55.000Z (over 4 years ago)
- Last Synced: 2025-02-08T20:47:42.582Z (2 months ago)
- Topics: bme280, bmp280, bosch-sensor, mcu, sensor, stm32
- Language: C
- Homepage:
- Size: 5.86 KB
- Stars: 1
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# BMx280
Bosch BME280/BMP280 pressure sensor light library. In original adopted for SMT32 Low Layer library but could be easily changed to any other platform.
[BME280 datasheet](https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bme280-ds002.pdf)
[BMP280 datasheet](https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bmp280-ds001.pdf)
## How to use
```C
BMx280_HandleTypeDef bme280;
bme280.hi2c = I2C1;
bme280.address = 0x76;
BMx280_Config config = {
.filter = BMx280_FILTER_4,
.t_sb = BMx280_TIMESTBY_1000
};
BMx280_Oversampling oversampling = {
.osrs_t = BMx280_OVERSAMPLING_4,
.osrs_p = BMx280_OVERSAMPLING_2,
.osrs_h = BMx280_OVERSAMPLING_1,
};
BMx280_Init(&bme280);
BMx280_SetConfig(&bme280, config);
BMx280_SetOversampling(&bme280, oversampling);
BMx280_SetMode(&bme280, BMx280_MODE_NORMAL);
BMx280_ReadMeasurements(&bme280);
float temperature = BMx280_GetTemperature(&bme280);
float pressure = BMx280_GetPressure(&bme280);
float humidity = BMx280_GetHumidity(&bme280);
```
## Porting routine
1. Change includes in `bmx280.h` to proper for your MCU, also maybe you want to replace I2C with SPI
2. Change `_BMx280_IO_Write8` and `_BMx280_IO_Read` functions in `bmx280.c` to implement read and write functionality according your MCU
## Tested using
sensors:
* GY-BME280 (BME280 sensor)
* GY-91 (BMP280 sensor)
on boards:
* STM32 Nucleo-L073RZ
* STM32 L010F4