Yes. I did such tests many times. Both synthetic and outdoor. But not on the latest NAM 0.3.3 with SDS011 2020Q4 (or newer). And I would like to delegate some work to person not biased as I am (as project creator). Maybe there is something that I’m not seeing in my solution.
I the end of month we will try to deploy NAM 0.3.3 with newest SDS011 and HECA in close proximity of reference station.
In my opinion if you have precise relative humidity and temperature measurement the dust data are actually quite useful. Up to 90% RH you are able to compensate measurements in software with decent approximation. Above 90% RH it probably still possible but not with BME280 or DHT22. Those sensors sucks in 90%+ RH. I do like SHT31 and SHT35 in DIS-F variant with PTFE membrane or with dedicated SP2 cap.