3 ms·
Thanks for those links- this is something I'm interested in as well. I'm working on a RasPi Zero hat that has a CCS811 for eCO2 and VOC, a BME280 for humidity,
by mafuyu 8y ago
Thanks for those links- this is something I'm interested in as well. I'm working on a RasPi Zero hat that has a CCS811 for eCO2 and VOC, a BME280 for humidity, temp, and barometric pressure, and a header for a SDS011.
I'm interested in indoor air quality, so just looking at PM2.5 trends over time would probably be enough for me. An error of 2x without calibration makes it useless for any sort of air quality index calculation, though. Maybe I'll include a header for the HPMA as well and compare the two.
- fpgaminer 8y agoNice project. Got any links to stay up-to-date on your build of the HAT? Plans to sell it? By the way, how accurate is the VOC measurement on the CCS811? I saw those sensors on Adafruit but haven't dug into them yet.
- mafuyu 8y agoThanks! I started this project on a whim a few days ago, and haven't done a ton of research yet; just picked what looked like the most popular parts online. I'd definitely be up for putting some assembled spares on Tindie once it's complete. I'll post about it on https://hackaday.io/hylian https://hackaday.io/hylian or https://edwardsh.in https://edwardsh.in once things get going.