How to measure Air Quality in real-time! Easily visualise and save data (SGP40) |

[@YunJang]

Really appreciate the video. It's allowing me to get my feet wet in the Arduino space. In addition to VOC readings, have you by chance integrated or updated this design with a PMSA300I to get PM readings as well? I know that it most likely won't capture ultrafine particles emit into the air from a 3D printer but figured it'd be a nice to have for generally capturing any additional particle emissions and have a clean interface to read from like the way you're displaying data here.

[@ProjectsWithRed]

That's great to hear! Unfortunately I have not made a version that integrates the PMSA300I, however, if you go over the code you will be able to easily add more sensors just by slighly updating the code.

[@YunJang]

@@ProjectsWithRed I received my sensors from Adafruit earlier today and was able to integrate everything using similar code. As expected, the PM sensor wasn't able to pick up much but the VOC sensor was definitely able to pick up enough change even for PLA filament. Thanks again for the video, it's been quite fun messing with the ESP32 and getting metrics from it!

[@ProjectsWithRed]

@@YunJang Good stuff, that's great to hear! I am glad I could help!

[@Metrowhite]

If there is formaldehyde in the air, will the VOC value of this sensor increase?

[@ProjectsWithRed]

I am not sure, I don't have too much experience with this sensor, but I am sure you can find out in the official sensor page here www.sensirion.com/en/environmental-sensors/gas-sensors/sgp40/. Remember to subscribe if you enjoyed or found the video useful :)