I think it would be really exciting if the Aqara U200 keypad in Apple HomeKit could be used not only to unlock the door, but also for other freely definable PINs.
These could be used, for example, to trigger other devices or automations – such as opening the garage, switching on a light, or activating a scenario.
Technically, the keypad would be available – the question is rather whether Aqara or HomeKit would allow more flexibility here.
What do you think? Can you see any use cases or possible limitations?