Integration with Davis Weather Station?

[Chester Corcos]

I’m thinking about using a David Weather Station to supply all the necessary measurements for evapotranspiration adjustment.

Has anyone done something like this?

[Ray]

I believe this has been implemented by @rmloeb. You can check it on the openSprinkler-weather main github page:
https://github.com/OpenSprinkler/OpenSprinkler-Weather
search ‘Davis’ you will find the link.

[Chester Corcos]

It looks like the code that fetches is here: https://github.com/OpenSprinkler/OpenSprinkler-Firmware/blob/613efae85660d8fbb5875980ea9675bff51e5902/weather.cpp#L133-L147

I could use some help figuring it out though 🙏

[Chester Corcos]

Hey there, so I have my weather station set up. Now that I’m digging deeper into that github repo you sent me, it just seems a bit too complicated. I don’t want to connect WeatherLink to Wunderground… I have my weather conditions on my local network pretty simply:

`
❯❯❯ curl -X GET -H “application/json” http://weatherlinklive-719e35.local/v1/current_conditions
{“data”:{“did”:”001D0A719E35″,”ts”:1705210312,”conditions”:[{“lsid”:690486,”data_structure_type”:1,”txid”:2,”temp”: 46.9,”hum”:90.9,”dew_point”: 44.4,”wet_bulb”: 45.5,”heat_index”: 46.9,”wind_chill”: 46.0,”thw_index”: 46.0,”thsw_index”: 44.0,”wind_speed_last”:4.00,”wind_dir_last”:130,”wind_speed_avg_last_1_min”:2.75,”wind_dir_scalar_avg_last_1_min”:135,”wind_speed_avg_last_2_min”:2.56,”wind_dir_scalar_avg_last_2_min”:137,”wind_speed_hi_last_2_min”:6.00,”wind_dir_at_hi_speed_last_2_min”:118,”wind_speed_avg_last_10_min”:3.18,”wind_dir_scalar_avg_last_10_min”:128,”wind_speed_hi_last_10_min”:8.00,”wind_dir_at_hi_speed_last_10_min”:136,”rain_size”:1,”rain_rate_last”:0,”rain_rate_hi”:0,”rainfall_last_15_min”:0,”rain_rate_hi_last_15_min”:0,”rainfall_last_60_min”:1,”rainfall_last_24_hr”:39,”rain_storm”:39,”rain_storm_start_at”:1705158841,”solar_rad”:0,”uv_index”:0.0,”rx_state”:0,”trans_battery_flag”:0,”rainfall_daily”:39,”rainfall_monthly”:39,”rainfall_year”:39,”rain_storm_last”:null,”rain_storm_last_start_at”:null,”rain_storm_last_end_at”:null},{“lsid”:690482,”data_structure_type”:4,”temp_in”: 68.3,”hum_in”:42.6,”dew_point_in”: 44.7,”heat_index_in”: 66.5},{“lsid”:690481,”data_structure_type”:3,”bar_sea_level”:30.024,”bar_trend”:-0.006,”bar_absolute”:29.855}]},”error”:null}%
`

I discovered the /su url from another discussion <https://opensprinkler.com/forums/topic/weather-server-call-failures/&gt; and I can easily run a little server on my raspberry pi to proxy the request into the desired format. Is there any documentation about this though? What request is OpenSprinkler sending to get the weather and what should the response look like?

Thanks,

Chet

[Chester Corcos]

I’m trying to reverse engineer the endpoint by setting up a local web server and see what gets requested, but it doesn’t seem to work.

when I go to /su url and set the weather url to my local server, it returns {“result”:2,”item”:””} and when I go back, nothing changed and no requests were made…

Any ideas?

[Chester Corcos]

Ok. I’m starting to see how this works. I just need to do something here:

https://github.com/OpenSprinkler/OpenSprinkler-Weather/blob/b486f6d26ae594e62274ca0067dd0d0eca6df7cf/routes/weatherProviders/local.ts

[Chester Corcos]

Hey Ray! I created PR here that uses my weather station! https://github.com/OpenSprinkler/OpenSprinkler-Weather/pull/146

My entire OpenSprinkler system with ETo is now able to run without an internet connection 🙂

[Author]

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