Get wind speed from my WeeWx weatherstation

[JPS 0]

Hi,

I have just bought a Fibaro HC3 and I would like to get the wind speed from my WeeWx weather-station.

Can anyone help me how I can get the the windspeed from the feed from the station.

Every 5 minutes this url is updated: 

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The wind is in the first item and in description Wind:

 

Your help would be appreciated!!

 

Peter

[tinman 1,070]

i would probably install json output formater ( 

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) and read the the nicely formated data on HC3, instead of formating the xml / rss on HC3 (which can work as well, but extra  point of failure).

 

 

[tinman 1,070]

... and then try attached simple QuickApp. It will show (i think, i don't have WeeWx so tested with offline data) wind speed and rain rate, and the rain detector (if rain rate > 0) can be used as kind of alarm thing.

 

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updated version v0.2 with support for user:password basic auth (leave QA variables default if you don't need authentication)

 

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Edited July 31, 2021 by tinman

[JPS 0]

Thank you tinman! I will see if I can do something. I do not have any LUA experience but I will have to do it the hard way.. Start from scratch.

I see you have developed a QuickApp for Davis WeatherLink Live. I have a Davis so easiest might be to buy a weatherlink Live and your QuickApp.

 

Peter

[JPS 0]

Thanks again tinman!!

I will try to use the LUA code you wrote and also to install the JSON on my WeeWx server.

 

Peter

[tinman 1,070]

41 minutes ago, JPS said:

Thank you tinman! I will see if I can do something. I do not have any LUA experience but I will have to do it the hard way.. Start from scratch.

 

you don't have to know LUA, you might ask here in forum

 

The QuickApp is ready to use, once you installed the weewx json formater, the output data should be then like:

 

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and the Quick App will format it once you enter the IP or URL ( www.pcsundin.se/weather ).

The QuickApp will look for "weewx.json" on the webserver (which will be generated once you installed that weewx json formater), however you can change that if necessary, the line in QuickApp code is 120

 

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That's all actually.

 

41 minutes ago, JPS said:

I see you have developed a QuickApp for Davis WeatherLink Live. I have a Davis so easiest might be to buy a weatherlink Live and your QuickApp.

 

oh well, it is up to you

 

Edited July 30, 2021 by tinman

[tinman 1,070]

i just updated the Quick App above, added header option "["Accept"] = "application/json"," which might be necessary, so download it again, click on create sensors and then change the IP/URL

Edited July 30, 2021 by tinman

[tinman 1,070]

5 hours ago, JPS said:

I am not really getting it to work and I am sure it is because of myself.

 

I changed the code line 122 and enter the url to where the whew.json is stored.

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Is there anywhere else I have to change?

I found under variables

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Should I change anything there?

 

 

i respond in here:

 

- QuickApp variables -> yes, you should change the IP from changeme to www.pcsundin.se/weather

- change back the code in the QuickApp itself (or just delete the QuickApp and import again), to what it was before. This is because the code is checking if the "IP" variable value is "changeme" or something else, and if something else, then the http Query will get executed.

 

- the interval variable can be changed as well, it is time in seconds, on which the http query will be executed

- the other variables are autogenerated, they reflect the child devices created once you clicked on "create sensors" button, don't chage them.

 

 

EDIT:

 

i see you applied already the weewx json formater, the QuickApp on my HC3 is showing data

 

 

Edited July 30, 2021 by tinman

[tinman 1,070]

Btw, with a bit copy&paste one can easily change the Quick App to report everything what WeeWx reports, good starting point for LUA / QuickApp leason.

 

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As you asked: the code was taken from my other Weather Station Quick Apps, while BleBox is easy one, the Davis is more complex (to cover the UDP alarm from Davis, etc.). Generally WeeWx does support Davis, and could support BleBox as well (as the BleBox API is open). I was thinking to write anyway QuickApp for WeeWx, however, due to lot of supported hardware (and potential differences in data output) i decided to not. WeeWx is much more than just data collector anyway. On the other hand, when i can read directly from Davis into QuickApp, why to bother and get trough WeeWx. 

 

Edited July 30, 2021 by tinman

[JPS 0]

I am sorry tinman,

I probably did wrong by deleting the quick app and the child sensors. After reloading you code, it does not create the child sensors and the app crashes without the sensors.

 

[30.07.2021] [18:53:00] [DEBUG] [QUICKAPP169]: QuickApp:onInit

[30.07.2021] [18:53:00] [DEBUG] [QUICKAPP169]: Child devices:

[30.07.2021] [18:53:00] [ERROR] [QUICKAPP169]: QuickApp crashed

[30.07.2021] [18:53:00] [ERROR] [QUICKAPP169]: Unknown error occurred: std::runtime_error: 'Invalid argument'

 

I have tried to restart the HC3 but I can still not create the sensors with the button to create them.

[tinman 1,070]

hmm strange, try in that order:

 

- import Quick App

- click on create sensors

- after they created go to variables

- change the IP value

- click on save

 

When you delete child devices, the code my behave strange, because it is trying to update them. The best is, when one deleted child, to delete the complete QuickApp (by deleting the parent). Normally one can as well change the IP back to "changeme", which will stop the code from updating, then edit the child id values in variables back to 0 and save .. but to delete whole QuickApp is faster and safe (HC3 tnds sometimes to act strange when child devices id/structure are updated, so only reboot helps).

Edited July 30, 2021 by tinman

[JPS 0]

Tinman,

You are 100% correct. I had to create the sensors before changing the ID. Now the sensors are created.

Now I get the problem with authorisation on the webserver.

[30.07.2021] [20:03:49] [DEBUG] [QUICKAPP169]: Error: Host not found (authoritative)

 

Can you add to have username and password?

 

 

[tinman 1,070]

15 hours ago, JPS said:

Now I get the problem with authorisation on the webserver.

[30.07.2021] [20:03:49] [DEBUG] [QUICKAPP169]: Error: Host not found (authoritative)

 

you probably entered wrong URL, look here, i can access your server:

 

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15 hours ago, JPS said:

Can you add to have username and password?

 

 

sure, added to v02, see attached QuickApp on top of this thread.

 

user and passwort in clear text in QA variables (yes, one could hide pwd, i leave it visible)

they will be base64 encoded and send as http basic auth

 

 

 

Edited July 31, 2021 by tinman

[JPS 0]

Tinman,

Finally it works!

You are a star!

 

It was because I had a slash after the address and used http://

Before: 

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When it works 

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Now Wien the Windows is n 6,25 m/s it shows à bit 6 and small 25. It looks a bit weird.

 

Thanks again for your brilliant support!

 

Peter

[tinman 1,070]

On 7/30/2021 at 9:30 PM, JPS said:

Finally it works! Thanks again

you're welcome

 

On 7/30/2021 at 9:30 PM, JPS said:

Now Wien the Windows is n 6,25 m/s it shows à bit 6 and small 25. It looks a bit weird.

 

that depends on the HC3 firmware version, on 5.80.9 it looks like (rounded to 6)

 

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and on 5.70.42

 

 

 

 

 

Edited August 29, 2021 by tinman