Please make a hose bib mounted valve that listens on WiFi like an IOT device. It should work as an assigned zone from the regular rachio controller. It is not always practical to run a wire.
Alternative is a small 24vac powered radio like a garage opener that you wire to the controller. It talks to a receiver in the hose mounted valve.
None of this is hard engineering
1 Like
Rachio makes a Smart Hose Timer. Its kind of pricy if you already have a controller doing the smart stuff.
You could use 2 Shellys to take the output from the controller and make a wireless output where via wifi for about $25. But then you need a battery powered valve to open and close on battery power–not familiar with those options.