Weather Software > RaspberryPI Weather Software
need help building my weather station.
92b16si:
Hi group, new member, long time lurker, trying to figure out how to build my weather station, of if what I'm trying to do is possible; based on YouTube videos I think it is.
I want to control an anti-frost irrigation system in an avocado orchard with a weather station. I currently have a analog thermometer when temperature drops below 3c it would turn on and shut off when temperature reached 12c. It worked well for the winter frost m but the spring frost (from what i understand is that frost happed due to low due points and wind, not necessarily temperature drop) regardless system never turned on and all my trees suffered frost damage or complete loss. So that's when i started researching more about the topic. I also want to use the weather station along with AI to help me predict ideal conditions for fungus growth send me an alert so i can prepare to spray fungicide or let me know ideal conditions don exist so i should spray considering fungicide is expensive and don't want to flood the soils with cooper products.
Wanted to see if you guys can help build my set up since i think this is way over my head but want to learn as i go. so far i have a raspberry pi5 , just ordered ai hat and meteo pi. but i don't know how to go about or the difference between the Davis vantage pro 2 stations. i search https://www.scaledinstruments.com/product-category/davis-instruments/complete-weather-stations/vantage-pro2-series/wireless/ i dont know the difference . i know i will probably need a temperature sensor wind speed due point, uv ( would also like to use ai to mesure or predict tree transpiration during hot days) and https://www.scaledinstruments.com/shop/apogee-instruments/radiation-frost-detector/apogee-sf-110-ss-radiation-frost-detector/ maybe this sensor might work. but i dont know where to start. and looking for some guidance. thanks and sorry for the confusing post.
R.Sidetrack:
I suggest taking small steps, get the most critical part working properly, then that gives you some time to explore the options for the less immediate issues.
So I see the frost / water control & alerts as the most pressing need. While Raspberry Pi are great, you don't need to go there to address the water control issue.
A modest investment in Ecowitt devices can control the water, and send you all kinds of alerts. There are various stations / price points, but this is a reasonable starting point: https://shop.ecowitt.com/collections/weather-station/products/gw1103
and add a water Timer / valve: https://shop.ecowitt.com/products/wittflow-smart-water-timer?_pos=2&_psq=water&_ss=e&_v=1.0&variant=44443745812642
With that combination, you don't need to set up the Pi initially. Just use ecowitt.net to set up scenarios to turn on the water at certain conditions.
Then you can explore your AI desires in a more relaxed manner. :)
FYI: that WFC01 valve can be exposed to the weather, but it CAN NOT survive temperatures that freeze water if there is water in the WFC01 valve. You will need to have the WFC01 valve in an area/enclosure that does not freeze.
Wooks61:
More info on Ecowitt products here:
http://meshka.eu/Ecowitt/dokuwiki
92b16si:
thank you so much but i dont think the water valve might work. my irrigation system is on 5 hectares. and irrigation pump is a 7.5 2 phase 220v pump. plus a 5 hp pump for the water well which i also need to turn on. but let me look into that weather system. seems to be much much cheaper
R.Sidetrack:
It is possible to control heavy duty pumps / motors with the Ecowitt weather stations.
Ecowitt also has a "Smart Plug", which could be used to control a relay / contactor that has a 120VAC coil.
https://shop.ecowitt.com/products/ac1100-smart-plug
The Smart Plug can have a "plan" that is similar to the one that would operate the Water Timer device. The "plan" input conditions are data reported by the weather station getting to limits that you would set.
Use the Ecowitt Smart Plug to activate one or more contactors connected to the pump circuit(s). For example, something like this: https://www.automationdirect.com/adc/shopping/catalog/motor_controls/definite_purpose_contactors/definite_purpose_contactors/wdp40-3l-120
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Similarly, you could set up the Raspberry Pi to run CumulusMX weather station software. In the course of its normal functioning, the weather data from the Ecowitt weather station goes into a CumulusMX SQLite database: https://www.cumuluswiki.org/a/Your_Own_Server#Web_server_and_database_server_built_into_Cumulus_MX
Setting up CumulusMX to receive data from an Ecowitt weather station is pretty straightforward. CumulusMX even offers a Pi "image" file that makes it easy to get started on the Pi. Somewhat more technical would be to create/program another application running on the Pi to process data from that Cumulus SQLite database and activate the pumps (through relays) given the appropriate weather conditions. My suggestion would be to use Python to create a program to control the pumps, but there are other options as well.
https://projects.raspberrypi.org/en/collections/python
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