After spending weeks planning and digging, I finally installed my lawn sprinkler irrigation system and it’s up and running! 
I have 4 valves controlled by 2 Fibaro FGS-222 Z-Wave devices. Everything seems to work fine so far, except for some slight Z-Wave range issues. I can control the valves using both physical push-buttons in the garden and via the Homey App, which is awesome! 
Now, it’s time to think about automation. My initial idea is to set up a scheduled start where each valve runs for X minutes. But I’m really curious about incorporating some weather data into the mix. I don’t have a weather station yet, but maybe I can pull rain data from an online service supported by Homey? Or perhaps connect a moisture sensor to the flow somehow? 
I’ve heard some folks talk about using soil moisture sensors to prevent overwatering, which sounds like a great idea. I’m also wondering if there’s a way to adjust the watering schedule based on real-time weather conditions, like postponing if it’s supposed to rain later in the day. 
Has anyone successfully implemented something like this? Any tips or tricks for optimizing an irrigation flow? I’m eager to learn from your experiences and maybe steal some inspiration for my setup! Thanks in advance for your help! 