search

adafruit / Adafruit_CircuitPython_BMP280

CircuitPython driver for the BMP280
MIT License
35 stars 25 forks source link

Wrong _CPU_ID detected in adafruit_bmp280.py #28

Closed feranick closed 3 years ago

feranick commented 3 years ago

I have a Adafruit BMP280, operating via i2C. It's the only board connected to the Raspberry PI. When using the CircuitPython library, I get this error:

RuntimeError: Failed to find BMP280! Chip ID 0x60

The library (adafruit_bmp280.py) expects to have the CPU_ID = 0x058, therefore triggering the error above. I am not sure why the value of the _CPU_ID is hardcoded, but the crash can be fixed by changing the _CPU_ID value in adafruit_bmp280.py to 0x60. With that change, the library works fine.

With this bug report, I wonder whether it's needed to have a hardcoded value for _CPU_ID or if it is, whether adding values corresponding to official Adafruit BMP280 board may be needed.

dhalbert commented 3 years ago

A BME390 and a BME280 have a chip id of 0x60. Could you double-check the labeling on your board?

feranick commented 3 years ago

You are absolutely correct, it's a BME280. Sorry for the trouble.