I have a Schlage Connect Z-Wave door lock. I can control it via my SmartThings App but I do not feel secure knowing that someone who hacked my account or my phone can easily gain access to my home.
In addition, the lock/unlock button can be pressed accidentally w/o any confirmation dialog. My deadbolt can be flaky and once unlocked, it could be stuck and not be able to lock again.
I am wondering if there is a way to limit the smart lock to allow only lock but not unlock?
No. Your goals and concerns contradict with each other:
My deadbolt can be flaky and once unlocked, it could be stuck and not be able to lock again.
Points out that the goal of
I am wondering if there is a way to limit the smart lock to allow only lock but not unlock?
Is not meaningfully achievable, since the "lock" attempt might not actually accomplish anything.
You would need a system-rengineering to report the lock status by a means you consider reliable.
Or you could just add an additional mechanical deadbolt and only use the IoT system for temporary convenience purposes.
To make the system only able to lock and not unlock, you could probably do something like disconnect one coil (if there is a distinct coil for each direction) or enforce a polarity with a diode (in the less likely situation that a polarized coil is used with a magnet, or the more likely case that a motor is used).
