On this install, do I use the wee_extension –install command, or uncompress it 
into a folder somewhere?

 

Thanks!

 

From: [email protected] <[email protected]> On Behalf Of 
Graham Eddy
Sent: Sunday, July 4, 2021 8:58 PM
To: [email protected]
Subject: Re: [weewx-user] Highchart Air Quality

 

if all you want is to convert PM2.5 using the US EPA AQI tables i.e. not get 
variants or labels, see weewx extension 
http://geddy.id.au/downloads/weewx-aqixtypes-0.0.2.tar.gz

(haven’t got around to putting lots of stuff up on github yet)

 

configure in weewx.conf by adding

[Engine]

xtypes_services = ..., user.aqixtypes.US_EPA

and map the PM2.5 inputs (instant or 24hr avg or both) to outputs e.g.

[AQIXTypes]

    [[map]]

        aqi_pm2_51_24h_avg = pm2_51_24h_avg

        aqi_pm2_52_24h_avg = pm2_52_24h_avg

        aqi_pm2_51_instant = pm2_5

        aqi_pm2_52_instant = pm2_52

and optionally force the xtypes to be generated into archive packets by

[StdWXCalculate]

    [[Calculations]]

  aqi_pm2_51_24h_avg = software, archive

        aqi_pm2_52_24h_avg = software, archive

        aqi_pm2_51_instant = software, archive

        aqi_pm2_52_instant = software, archive

 

i am not familiar with the belchertown skin





On 4 Jul 2021, at 2:29 am, Mitchell Tuckness <[email protected] 
<mailto:[email protected]> > wrote:

 

Ah, thanks! 

 

I don't suppose you have settings or a guide to get it to work with the Ecowitt 
PM2.5 sensor instead of the Purple Air one? I am doing some searches, so far 
not much luck and coding isn't my thing.

 

On Thursday, July 1, 2021 at 1:02:42 PM UTC-6 [email protected] 
<http://gmail.com>  wrote:

weewx-aqi. You will find it on GitHub

 

On Thu, 1 Jul 2021 at 13:01, <[email protected]> wrote:

I am using Weewx with the Belchertwon skin and I have an Ecowitt PM2_5 sensor 
to read air particulates. Does anyone know of a graph we can add to the 
charts.conf to convert the PM2_5 reading to an actual Air Quality reading?

 

I have found a lot of sites that allow me to convert the reading on their site. 
But I was hoping someone had made a high chart graph for the Belchertown skin I 
could add that would give me an Air Quality reading people could see.

 

A chart that does this with the data in the weewx database.

 

https://www.airnow.gov/aqi/aqi-calculator/

 

Thanks!

 

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