Re: Bluetooth lock reasons...
All of which could be achieved more simply with a standard hasp lock which you leave unlocked so the delivery person can open it, put stuff in and then lock it.
Bit of a bother if you expect to have more than one delivery the same day, or when some joker either locks the box before any delivery is made or nicks the lock.
A remotely controlled latch wired to a Pi or something would be what I'd start with.
Biting the hand that feeds IT
