BMP280 - compensation formula for other bit format

[amilo_pa]

Hi everyone,

I would like to ask you, that any one have a samples of library/code how to calculate a pressure and temperature values for other resolutions?

Best regards
Piotr

[Yanchao]

Hi,

Please refer to bst-bmp280-ds001.pdf  3.11.3 and 3.12 to learn how to calculate pressure and temperature.

BMP280_driver API have more details.

[amilo_pa]

I tried to find any connection between this sample code and other resolutions but I couldn't. Please help me find this connection.

[Yanchao]

Hi,

There're no formula decribe oversample setting and resolution.

And different oversample setting will effect pressure sensor noise, so please select the right setting.

[amilo_pa]

Ok,so a raw value always has a 20 bit format. But, by using osrs_t and osrs_p registers I am choosing on how many bits is using for representive for the raw value. Now I am understanding 🙂

Best regards
Piotr