i have a pool house near big house and i wondered if i could use one system for both of them ?
you only need one system , pluto can control both your big house and your pool house too
You only need to have a connection on your local network (Ethernet) in the pool house. Cat5 cable can be run for several hundred feet, and you can add switches in long runs to extend the length further. So it should not be a problem to put your pool house and main home on the same network.