So, I am looking into water shutoff valves, and it seems like they’re really silly/rickety (a plastic arm that turns off a valve), or really expensive (Fortrezz).
$100, and it basically functions in the same way that the Fortrezz does, minus the “smart” part (obviously, that’s a large “minus”). Then I found a z-wave curtain module from Monoprice for $17 which, I believe, has all the connectivity to provide the logic to make this thing work. Then, a few automotive relays and a brick power supply (or batteries), and that’s everything.
Might be a little less elegant, but for about $125 all-in, it seems like a winner. Is there something I am overlooking? The valve has 3 wires, so no “status” wire, but I’d be happy with telling it to close for 10 seconds and assuming it made it. Since it DOES have 3 wires, I’d assume it disconnects the wire once it reaches full range.