Nat writes in to show us his Twitter controlled dog feeder that anyone can control.  Made from a Nanode and other random components he had laying around.  Simply tweet ‘Feed’ to @feedtoby to send Toby a little treat.  To keep Toby from packing on some extra weight, the feeder only allows food between 09:00 and 21:00, plus it limits to once every 30 to 45min.