Hi Tim, You do not need a separate database to store AQI. It can be derived with xtypes. And AQI can be and is plotted. That is what weewx-purple is doing for US EPA AQI. It’s also using xtypes to compute LRAPA PM2.5 values and UNBC PM2.5 values.
> On Sep 22, 2020, at 4:27 PM, Tim Tuck <[email protected]> wrote: > > > Hi Daniel, > > All cool but you are plotting PM not AQI . > > AQI is a value calculated from either a single PM type or multiple PM types. > > https://aqicn.org/calculator > > https://en.wikipedia.org/wiki/Air_quality_index > > The AQI plugin is supposed to do that and it creates a new db to save the AQI > values in it. > > I have an Ecowitt PM2.5 monitor and that data is being saved to the weewx db, > I'm investigating how I can calculate AQI from that data using the AQI plugin > and then show the actual AQI via the Belchertown skin. > > I've just been wondering if anyone else has done that, and if so, how ? > > If not one has done that yet, I'll plod on and eventually work it out :) > > cheers > > Tim > > > > > >> On 23/9/20 2:06 am, Daniel Rich wrote: >> I have it working with my PurpleAir and the weewx-purple extension. >> >> All I had to do was add pm2_5 to my sensor list and create a graph: >> station_observations = barometer, dewpoint, outHumidity, rainWithRainRate, >> pm2_5, radiation >> >> And in /etc/weewx/skins/Belchertown/graphs.conf: >> [[chart7]] >> title = Air Quality >> [[[pm2_5]]] >> name = AQI PM 2.5 >> zIndex = 1 >> color = "#becc00" >> [[[pm1_0]]] >> name = AQI PM 1.0 >> zIndex = 1 >> color = "#ffc83f" >> [[[pm10_0]]] >> name = AQI PM 10.0 >> zIndex = 1 >> color = "#c83fff" >> >> You can see it in action at https://www.lapseofthought.com/weather/ >> >> >> >> >> >> >> > -- > You received this message because you are subscribed to the Google Groups > "weewx-user" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-user/03a971a4-3ff0-ad96-7faa-7f52dacc2289%40skybase.net. -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/F727C164-6280-4FAD-BD31-AAFC2E9A4971%40johnkline.com.
