Grove BME680 gas measurements

[dsrc12]

I have tested this component and it works well. The only issue I have is that it measures air quality in Kohms and I can not understand what these values mean and these is nothing on the web that helps. No environmental agency uses this measure but IAQ (index of Air Quality) instead. Has any one considered adding an algorithm to convert the BME680 gas measurement from Kohms to IAQ?

[drbrain]

The data sheet says in section 1.2:

[…] a software solution (BSEC: Bosch Software Environmental Cluster) is available for the BME680. The software is carefully engineered to seamlessly work with the 4-in-1 integrated sensors inside the BME680. Based on an intelligent algorithm, the BSEC provides an index for air quality (IAQ) output. In principle, this output is in an index that can have values between 0 and 500 with a resolution of 1 to indicate or quantify the quality of the air available in the surrounding. Table 4 lists the IAQ system specification. The detailed classification and color coding of the IAQ index is described in Table 4. Furthermore, the BSEC solution supports different operation modes for the gas sensor to address the necessary power budget and update rate requirements of the end-application.

So I think you need to download this software and integrate it into your application.