There are many many options for controllable locks but all are really intended for doors with keypad access. In my application, I only want the locking mechanism not the interface. Ideally the trigger for locking or unlocking would be a mobile phone and no part of the lock would be visible on the outside of the door.
The purpose is simply to keep a cupboard door closed so that it blends into the wall (ie: like a hidden door). When triggered, the lock will unlock the door and ideally even push the door ajar. It does not need to be heavy duty, secure or unhackable. (essentially am removing the need for a cupboard handle)
Any suggestions would be greatly appreciated!