Evotranspiration (ET): how to send data to external targets?

[olliva]

I use WeeWX to calculate evotranspiration, which works because all the required values are available (Calculations = software).
In weewx the value is also displayed, but I do not manage to transmit this value to external targets using restful_services. All other values are sent correctly. Only the field "ET" contains "None".

Is there another trick to get weewx to send the existing value for ET?

[Tom Keffer]

I'm not sure what I'm looking at. What's the first screenshot?

Also, which external target, using which restful service?

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[Oliver T.]

Hi,

the first screenshot is from a csv-log, showing that „none“ is sent for ET.

I‘m sending my weather data in this case with the meteotemplate restful service.

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[Tom Keffer]

Slightly better, but we don't know the origin of this csv log. 

What's in the database? You didn't say what platform, database, or install method you are using, but assuming sqlite, on a debian-based system, using a package installer, this is how to check

sqlite3 /var/lib/weewx/weewx.sdb

sqlite> select dateTime, outTemp, outHumidity, radiation, windSpeed, ET from archive order by dateTime desc limit 20;

sqlite> .quit

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[olliva]

SQLite version 3.37.2 2022-01-06 13:25:41
Enter ".help" for usage hints.

sqlite> select dateTime, outTemp, outHumidity, radiation, windSpeed, ET from archive order by dateTime desc limit 20;

1688052780|71.1|69.0|34.91|2.0|4.59802529960867e-05
1688052660|71.1|69.0|34.14|0.9|4.60340718954392e-05
1688052480|71.1|69.0|32.46|1.8|4.61534681889615e-05
1688052420|70.9|70.0|31.48|2.0|4.63391362257127e-05
1688052360|70.9|70.0|30.46|3.8|4.6419715193029e-05
1688052300|70.9|70.0|30.4|3.4|4.64482952329881e-05
1688052240|70.9|70.0|31.22|3.1|4.66141058521128e-05
1688052180|70.9|71.0|32.4|1.1|4.66470285233452e-05
1688052120|70.9|70.0|33.91|2.7|4.66888831998948e-05
1688052060|70.9|69.0|34.4|4.9|4.65144132472678e-05
1688052000|71.1|71.0|35.1|0.9|4.66160072524492e-05
1688051940|71.1|71.0|35.54|0.9|4.69183531704265e-05
1688051880|71.1|70.0|35.9|2.9|4.67919531592529e-05
1688051820|71.1|70.0|36.41|2.7|4.66690452099581e-05
1688051760|71.1|69.0|37.19|4.3|4.65436573288951e-05
1688051700|71.1|70.0|38.19|2.2|4.66719205729737e-05
1688051640|71.1|70.0|39.02|1.8|4.6792530183339e-05
1688051580|71.2|69.0|39.6|4.9|4.66170693276469e-05
1688051520|71.2|71.0|40.02|2.0|4.65916268428556e-05
1688051340|71.1|69.0|42.47|3.8|4.66413772840898e-05
sqlite>

[Tom Keffer]

You have ET in the database, so the problem must be with the "meteotemplate restful service." I don't know anything about that, so I can't help you with it.

I will note that you have a 60 second archive interval, so individual ET values will be quite small. To make any sense, the upload service should probably sum over an hour or so, and upload that. 

-tk

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[olliva]

Thank you. Yes, I would like to keep the 60 seconds for the remaining values though.
I'll have to do some more research on that.
Is there actually a restful service that can export in ecowitt format that I could test as an alternative? Meteotemplate could also handle this with a plugin. 

[olliva]

If anyone else is facing this problem: I have now found a way:
You can install the plugin "ecowitt" in meteotemplate. So meteotemplate receives directly from an ecowitt device.

The plugin additionally calculates the evotranspiration once per day 

The advantage of this plugin is that you can set up to three additional redirections (one I have made to weewx, so that the data is received as before):

These are the entries in the ecowitt device setup:

 
Maybe others have to remove the "/template" in the path (this is because of the installation in a subfolder at my webscpace).

I had to disable the automatic http -> https redirection for my site, otherwise the ecowitt software doesn't submit the data

.