First reading always the same, and always incorrect.

[ecnelson]

First set of readings from BME280 driver are incorrect, and always the same. If you wait a bit they're correct (and they do fluctuate).

pi@crouton:~ $ python3
Python 3.9.2 (default, Feb 28 2021, 17:03:44)
[GCC 10.2.1 20210110] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from bme280 import BME280
>>> b = BME280(i2c_addr = 0x77)
>>> b.get_pressure(), b.get_pressure(), b.get_pressure(), b.get_pressure()
(684.6845353898584, 684.6845353898584, 684.6845353898584, 684.6845353898584)
>>># wait awhile...
>>> b.get_pressure(), b.get_pressure(), b.get_pressure(), b.get_pressure()
(848.8356787747891, 848.8356787747891, 848.8356787747891, 848.8356787747891)
>>> b.get_pressure(), b.get_pressure(), b.get_pressure(), b.get_pressure()
(848.8544261068524, 848.8544261068524, 848.8544261068524, 848.8544261068524)