04-03-2017, 03:53 AM
and one from yesterday
what is not yet exactly clear is to what level CO2 and VOC do corellate (and if they should)
as the VOC sensor measures rather Ethanol and go some level CO. And Ethanol is exhaled when we breathe, and also from many other sources.
also i am not sure if it is possible to create a good initial calibration, which would be the base for a good correlation, as it seems like the outdoor CO2 in my city does not fall below 420-430, and when i was in my country house it was 400, and the VOC sensor was measuring indeed more than 10% better results.. for 5% diffrence in CO2
it is not visible on the charts below as i have alligned them
![[Image: 9539df94-1839-11e7-9231-a3f37bf3218d.png]](https://cloud.githubusercontent.com/assets/492455/24594837/9539df94-1839-11e7-9231-a3f37bf3218d.png)
what is not yet exactly clear is to what level CO2 and VOC do corellate (and if they should)
as the VOC sensor measures rather Ethanol and go some level CO. And Ethanol is exhaled when we breathe, and also from many other sources.
also i am not sure if it is possible to create a good initial calibration, which would be the base for a good correlation, as it seems like the outdoor CO2 in my city does not fall below 420-430, and when i was in my country house it was 400, and the VOC sensor was measuring indeed more than 10% better results.. for 5% diffrence in CO2
it is not visible on the charts below as i have alligned them