05-31-2022 09:46 AM
In the datasheet of the BME688 it is mentioned that the sensor can be used to measure carbon monoxide but in the library of BSEC the output is carbon monixide. Is the sensor measuring carbon dioxide or monixide ?
06-14-2022 04:08 AM
Hi akash_reby,
You could see more detailed introduction from here: https://www.bosch-sensortec.com/products/environmental-sensors/gas-sensors/bme688/
The gas sensor can detect Volatile Organic Compounds (VOCs), volatile sulfur compounds (VSCs) and other gases such as carbon monoxide and hydrogen in the part per billion (ppb) range.
Additionally to all features of the BME680, the BME688 has a gas scanner function. In standard configuration, the presence of VSCs is being detected as indicator for e.g. bacteria growth. And the gas scanner can be customized with respect to sensitivity, selectivity, data rate and power consumption as well. The BME AI-Studio tool enables customers to train the BME688 gas scanner on their specific application, like in home appliances, IoT products or Smart Home.
06-14-2022 04:47 PM
How is the Air Quality Index determined ? What is the formula ?
06-15-2022 07:23 AM
Hi akash_reby,
BSEC library output IAQ, but the implement of this algorithm was not official open.
06-15-2022 11:16 AM
Thanks for the reply.
Do we know if the IAQ is Index of Air Quality or Indoor Air Quality Index?
06-28-2022 05:47 AM
Hi akash_reby,
It is IAQ is Index of Air Quality, you could refer it from BME688 data sheet according to the guidelines issued by the german federal environemental agency.