Abstract: The present invention provides a lock and handle assembly for a door comprising a latch moveable between an extended position in which the door is prevented from opening, and a release position allowing opening of the door; a lock having a locked state in which the latch is retained in the extended position, and an unlocked state allowing movement of the latch to the release position; a receiver to receive control instructions via a wireless communication medium, to change the lock between the locked state and the unlocked state; and a handle operable by a user to move the latch between the extended position and the release position, when the lock is in the unlocked state, thereby allowing the user to open the door. A power configuration and wireless communication system for such a lock (and other home automation devices) is also provided.