[Bug]: Considering use aht20's temperature when aht20 and bmp280 are both present

[Enter-tainer]

Category

Other

Hardware

Not Applicable

Firmware Version

v2.5.14.f2ee0df

Description

#3977 add support for ahtx0 series temperature and humidity sensor. When ahtx0 and bmp280 are both present, meshtastic will use bmp280's temperature.

However, it seems that aht20's temperature accuracy is actually higher. In page 8 of bmp280's data sheet, we can see that the temp acc is +- 0.5 at 25 degree, and +-1 when between 0~65 degree.

While AHT20's datasheet says that it has +- 0.3 typical accuray, and the max error between 0~65 is +- 0.5 degree.

So I think in this case, maybe switching to aht20 can bring better temperature result? I'm very new to embeded systems so please correct me if I get it wrong.

cc @caveman99 @fzellini FYI

Relevant log output

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