Raddy L7 Weather Station: XML of Current Conditions-How to Feed WeeWx?

[Michael]

Hello,

First I am not a developer, so pardon my ignorance. 

I have a Raddy L7 LoRa WX station.  I found that on the local configuration screen of the device, you can enter /client?command=record and get an XML output of current conditions.  Just wondering what getting this data to feed into WeeWx would entail?  

{"sensor":[ {"title":"Indoor","list":[["Temperature","68.9","°F"],["Humidity","38","%"]]},{"title":"Outdoor","list":[["Temperature","61.7","°F"],["Humidity","29","%"]]},{"title":"Pressure","list":[["Absolute","26.76","inhg"],["Relative","29.84","inhg"]]},{"title":"Wind Speed","list":[["Max Daily Gust","5.1","mph"],["Wind","1.1","mph"],["Gust","1.6","mph"],["Direction","123","°"],["Wind Average 2 Minute","0.4","mph"],["Direction Average 2 Minute","111","°"],["Wind Average 10 Minute","1.3","mph"],["Direction Average 10 Minute","134","°"]]},{"title":"Rainfall","list":[["Rate","0.0","inch/hr"],["Hour","0.0","inch","43"],["Day","0.0","inch","44"],["Week","0.0","inch","45"],["Month","0.0","inch","46"],["Year","5.72","inch","47"],["Total","10.65","inch","48"]],"range":"Range: 0inch to 393.7inch."},{"title":"Solar","list":[["Light","261.36","w/m²"],["UVI","1.2",""]]}],"battery":{"title":"Battery","list":["All battery are ok"]}}

[michael.k...@gmx.at]

Fwiw, it is JSON, not XML. If you can get your device to emit these values as MQTT messages, you probably can get along with https://github.com/bellrichm/WeeWX-MQTTSubscribe and some configs.

[matthew wall]

it looks like the raddy L7 can upload to wundgerground, so if you are using the raddy's wifi, you should be able to use the interceptor driver to capture or directly receive the wunderground output.  setting up the interceptor is not trivial, but there are many examples.

it would be nice if there were a generic json driver, analogous to the fileparse driver.  but the json structure varies a lot from one device to another, and the mechanism for obtaining that json output also varies.  for example, the tempest broadcasts json data, whereas the ruddy emits json as a response to http request.  so i understand why no one has written one yet.

m

[vince]

Something like the purpleair or davis airlink extensions could perhaps be modified. Query the endpoint and map it to weewx db elements. Or query periodically and feed MQTT.  SHOULD BE DOABLE.

[Michael]

I have officially given up on getting interceptor to work in sniffing mode on Phython3.  

[vince]

You have some pretty hideously formatted JSON to parse, but here's what it looks like in a more readable format after piping it through 'jq' and doing a little hand editing for readability....

{

[Rich Bell]

I have not tried parsing this via MQTTSubscribe, but I have my doubts that it currently handles it.

rich

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[bell...@gmail.com]

Considering the format could be any valid json, it is a bit of a challenge. I haven’t had a chance to see if MQTTSubscribe could handle this, but when I get some time I plan to

rich

[Ian Millard]

FWIW here you can find a very good online json path finder and validator which is very useful in helping to work out a parsing scheme which can be adapted for various computer languages: -

To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/CAG4CQqyqTkcda9a5EWe6DVbz2oPJtnqf_9Q2kbG%3DWCksxKgsvw%40mail.gmail.com.

[Rich Bell]

Cool. I’ll check it out. 

Thanks for the link!

To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/4AC3D106-F4E4-479A-804D-C374DCEB94EA%40btinternet.com.

[Graham Eddy]

Jsonpath is good for plucking specific values on the subscribe/inward side, but it doesn’t help with the publish/outward side (or at least i couldn’t think of one). i am still using the eval(expr, weewx-packet or json-message) approach in my mqtt implementation

⊣GE⊢

On 7 Mar 2024, at 11:05 am, Rich Bell <bell...@gmail.com> wrote:

Cool. I’ll check it out. 

Thanks for the link!

On Wed, Mar 6, 2024 at 6:33 PM 'Ian Millard' via weewx-user <weewx...@googlegroups.com> wrote:

FWIW here you can find a very good online json path finder and validator which is very useful in helping to work out a parsing scheme which can be adapted for various computer languages: -

To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/CAG4CQqwBvhN-mNq7WhBL20zNK%3Df%3Dt6zBgmKX98Gdj2j5b57m0Q%40mail.gmail.com.