Hello blakec,
From the information on the open source website, we can see that the software of BME280 has been integrated into Enviro+ for Raspberry Pi . Could you test this software and compare it with your test data? https://learn.pimoroni.com/tutorial/sandyj/getting-started-with-enviro-plus https://github.com/pimoroni/enviroplus-python/tree/master/examples
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