BME680 Calibration Problem

[JA67]

Hello there,

I have a question about the Sensor calibration. I first used the BME680 and placed it outside with fresh ambient air.

• Working with basic_config_state
• LP Mode

After taking the Sensor inside, the eCO2 and IAQ rise very high in a very short time (from 500 to 2300), although the CO2 value is around 800 (measured with a CO2 Sensor).

Is there a good method to do the calibration properly at home? For example, half an hour indoor, then half an hour outdoor.

Thanks in advance.

Sincerely,

Jonas

[BSTRobin]

Hello JA67,

If BME680 worked at first time, the IAQ value within 8 hours after power on is not credible for LP mode.
In order to stabilize the initialization after the first power on, you can leave it at home. The IAQ value is reliable after 8 hours, and the IAQ error will reach the range in the spec after 7 days.