I guess I have always wondering how the OSBee worked. . .so I read a little bit more about it. . .still not super clear. This thread got me interested. I have the OS (not PI) that I assume is an Arduino board as listed as the requirement. Does the arduino board need to be outside with the valves as well? I guess I was hoping for a way to not need to run sprinkler wire all the way under my current driveway (I still have values that are manually controlled that I haven’t converted yet). If I can run battery operated valves on those locations, then I wouldn’t need to run the wires. It still doesn’t seem like I would be able to control the valves with the existing OS, which is what I really would want. Or am I missing something??