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geerlingguy / airgradient-prometheus

AirGradient Prometheus exporter.
MIT License
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[Improvement Suggestion] replace SHT31 with BME280 #18

Closed Thelvaen closed 2 years ago

Thelvaen commented 2 years ago

I've tinkered a bit with the code to replace the SHT30/SHT31 with a BME280 (I prefer those sensors as they are a bit more reliable, and also because they provide atmospheric pressure data along with the Temperature/Humidity).

BME280 can work on I²C bus, hence it's almost a drop in replacement for the SHT30/SHT31 in terms of wiring, but as the board is a bit bigger, an external enclosure will be needed for said sensor (it's almost perfect as it also brings the temperature sensor away from the PM2.5/CO² sensor that do generate a couple of °C of heat, making the temp reading false.

My code is available at https://github.com/Thelvaen/airgradient-prometheus/tree/BME280 for those interested in :)

stale[bot] commented 2 years ago

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stale[bot] commented 2 years ago

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henkiejan1 commented 2 years ago

I've tinkered a bit with the code to replace the SHT30/SHT31 with a BME280 (I prefer those sensors as they are a bit more reliable, and also because they provide atmospheric pressure data along with the Temperature/Humidity).

BME280 can work on I²C bus, hence it's almost a drop in replacement for the SHT30/SHT31 in terms of wiring, but as the board is a bit bigger, an external enclosure will be needed for said sensor (it's almost perfect as it also brings the temperature sensor away from the PM2.5/CO² sensor that do generate a couple of °C of heat, making the temp reading false.

My code is available at https://github.com/Thelvaen/airgradient-prometheus/tree/BME280 for those interested in :)

I tried your code and works almost with a BME280. But the temperature didn´t show up. It says: NaNC. any ideas what goes wrong?