How to interface BME680 with PIC32MK1024GPK064 controller?

[ankur]

Hello Minhwan,

Thanks for the BSEC library.

What is the range for the "breath_voc_equivalent"  and "co2_equivalent" parameter?

regards,

Ankur Patel

[Minhwan]

Hello Ankur, 

Regarding eCO2 and bVOC, please check table 5 and 18 in BME680 datasheet. 

Thanks, 

[ankur]

Hello Minhwan,

As per you suggestion I looked at the tables :
- In table 18 (from datasheet) I didn't found about related to B-VOC/eCO2.

- In table 5 (from datasheet), mentions the "B-VOC mixture with Nitrogen as carrier gas".
       - I have not found the minimum and maximum limits of B-VOC.

Regards,
Ankur Patel

[Minhwan]

Hello Ankur, 

Here is the details, 

• bVOC_eq estimate: (Range 0.5 - 1000 ppm)
  • The breath VOC equivalent output (bVOC_eq) estimates the total VOC concentration [ppm] in the environment. It is calculated based on the sIAQ output and derived from lab tests.
• CO2_eq estimate: (Range 400-... ppm)
  • Estimates a CO2-equivalent (CO2_eq) concentration [ppm] in the environment. It is also calculated based on the sIAQ output and derived from VOC measurements and correlation from field studies

Thanks,