Welcome to the Cumulus Support forum.

Latest Cumulus MX V3 release 3.28.6 (build 3283) - 21 March 2024

Cumulus MX V4 beta test release 4.0.0 (build 4019) - 03 April 2024

Legacy Cumulus 1 release 1.9.4 (build 1099) - 28 November 2014
(a patch is available for 1.9.4 build 1099 that extends the date range of drop-down menus to 2030)

Download the Software (Cumulus MX / Cumulus 1 and other related items) from the Wiki

CumulusMX - Display of the values from the Ecowitt WH41

From build 3044 the development baton passed to Mark Crossley. Mark has been responsible for all the Builds since. He has made the code available on GitHub. It is Mark's hope that others will join in this development, but at the very least he welcomes your ideas for future developments (see Cumulus MX Development suggestions).

Moderator: mcrossley

Post Reply
HAT
Posts: 6
Joined: Mon 01 Jan 2024 6:28 pm
Weather Station: Ecowitt 2550
Operating System: Windows 10

CumulusMX - Display of the values from the Ecowitt WH41

Post by HAT »

Hello,

unfortunately I have a problem where I cannot find a solution.

CumulusMX 3.28.4 - b3281
Station: Ecowitt HP2550 (latest firmware)
Data source: Ecowitt.net
Sensor: Ecowitt WH41

Five values are displayed in the "Ecowitt.net" dashboard. (see attachment 1)

According to the log file, a total of three values are transmitted to CMX.

Code: Select all

"pm25_ch1":{"real_time_aqi":{"time":"1709026547","unit":"µg\/m³","value":"72"},"pm25":{"time":"1709026547","unit":"µg\/m³","value":"22"},"24_hours_aqi":{"time":"1709026547","unit":"µg\/m³","value":"94"}},
real_time_aqi
pm25
24_hours_aqi

Only one value is displayed on the CMX dashboard.
The second value is missing. (see attachment 2)

In CMX, the corresponding values are set to "Visible".

There are entries in the list of "Webtags":
AirQuality1...4
AirQualityAvg1...4

Why is the value "AirQualityAvg1" in CMX missing?
Have I overlooked something in the settings?
Is this perhaps a problem with CMX?

Best regards to all forum members
HAT
You do not have the required permissions to view the files attached to this post.
User avatar
mcrossley
Posts: 12756
Joined: Thu 07 Jan 2010 9:44 pm
Weather Station: Davis VP2/WLL
Operating System: Bullseye Lite rPi
Location: Wilmslow, Cheshire, UK
Contact:

Re: CumulusMX - Display of the values from the Ecowitt WH41

Post by mcrossley »

It's MX, the code for the average is there, but commented out. I'll have to look back to understand why I did that...
User avatar
mcrossley
Posts: 12756
Joined: Thu 07 Jan 2010 9:44 pm
Weather Station: Davis VP2/WLL
Operating System: Bullseye Lite rPi
Location: Wilmslow, Cheshire, UK
Contact:

Re: CumulusMX - Display of the values from the Ecowitt WH41

Post by mcrossley »

I cannot see a reason why I disabled the average!

I have enabled it on a test version and dug out a WH41 and the average value is working fine.

It will be in fixed in the next release.
HAT
Posts: 6
Joined: Mon 01 Jan 2024 6:28 pm
Weather Station: Ecowitt 2550
Operating System: Windows 10

Re: CumulusMX - Display of the values from the Ecowitt WH41

Post by HAT »

Hello,

that's all right.
Is there any chance that the third value (I think it's "real_time_aqi") will also be included in the list of processed values?

Thanks for your time and energy to help Cumulus move forward.
Do you also have a donation button or a donation Paypal address? :clap:



Best regards to all forum members
HAT
User avatar
mcrossley
Posts: 12756
Joined: Thu 07 Jan 2010 9:44 pm
Weather Station: Davis VP2/WLL
Operating System: Bullseye Lite rPi
Location: Wilmslow, Cheshire, UK
Contact:

Re: CumulusMX - Display of the values from the Ecowitt WH41

Post by mcrossley »

I've realised why I commented out the 24 average.

Ecowitt are sending a unitless AQI value (despite the JSON implying it is a PM count value by saying the units are µg/m³, just another error in Ecowitt's APIs).

MX does not use AQI values from the station, it uses PM counts and converts it to the whichever AQI scale the user wants.

Ecowitt do not say which AQI scale they are using but it looks like the US EPA scale - not much use if you live outside the US!
User avatar
HansR
Posts: 5960
Joined: Sat 20 Oct 2012 6:53 am
Weather Station: GW1100 (WS80/WH40)
Operating System: Raspberry OS/Bookworm
Location: Wagenborgen (NL)
Contact:

Re: CumulusMX - Display of the values from the Ecowitt WH41

Post by HansR »

mcrossley wrote: Thu 29 Feb 2024 12:02 pm I've realised why I commented out the 24 average.

Ecowitt are sending a unitless AQI value (despite the JSON implying it is a PM count value by saying the units are µg/m³, just another error in Ecowitt's APIs).

MX does not use AQI values from the station, it uses PM counts and converts it to the whichever AQI scale the user wants.

Ecowitt do not say which AQI scale they are using but it looks like the US EPA scale - not much use if you live outside the US!
Does this mean you disable it again?
Hans

https://meteo-wagenborgen.nl
CMX build 4017+ ● RPi 3B+ ● Raspbian Linux 6.1.21-v7+ armv7l ● dotnet 8.0.3
User avatar
mcrossley
Posts: 12756
Joined: Thu 07 Jan 2010 9:44 pm
Weather Station: Davis VP2/WLL
Operating System: Bullseye Lite rPi
Location: Wilmslow, Cheshire, UK
Contact:

Re: CumulusMX - Display of the values from the Ecowitt WH41

Post by mcrossley »

Yes. Because it means an AQI value is being put into a PM count field.
Post Reply