BME680 unrealistic IAQ values

Sensors Environmental
1

I have two BME680s both connected to raspberry pi’s running the Bosch BSEC software. One of the sensors produces an IAQ value range of 25-45. The Sparkfun sensor however produces an IAQ value of 160.00 and up (way up 500). The temperature and Humidity values are very comparable . The image in the link below show the Sparkfun sensor output on the right.

If I sensors on the Raspberry Pi’s the behavior follows the Sparkfun sensor.

https://ibb.co/vqn4d76

https://ibb.co/vqn4d76

2

I remember that the CCS811 sensor had a “bake in” time… which the BME680 may also require. Otherwise, there could be something off gassing in the area.