Here is demo of some integration I have been working on to control an electronic door lock with vox, it forms part of my custom built security system. I wanted the ability to lock all the doors in the house when I leave so if someone did break in they wouldn't just be able to roam from room to room.
It also serves as a good way to control which rooms handy men get access too when they come out to fix things like the washing machine, usually I would have to stay in and although I have CCTV if I wanted to nip out the house they would still have access to doors downstairs.
They might even finish repairing the machine while I am out and leave, so being able to lock the kitchen door with an electric lock means controlling the access to that and the extension.
Now I am not using an off the shelf electric door lock like many WiFi and Bluetooth connected ones you may have seen, they have become hack targets and the security for them is usually pretty weak, plus I am not using my electric locks on the main front house door, only doors inside.
If you live in the UK or EU you can copy what I have done by getting a Home Easy door lock which is remote controlled by RF frequency, you will need a tellstick and eventghost.
The video above is the voice control demo, I have got the doorlock unlocking using Bluetooth and NFC, I have NFC tags on the door and frame and if I touch my phone to it the door unlocks.
If I enter Bluetooth range the door unlocks, the great thing about this door lock is you can pick one up with the remote control unit for £20 on eBay, an off the shelf electric door lock like the August costs £220!
So using vox and some Home Easy Door Locks you could voice control every door in your house for half the price of an off the shelf smart door lock.
I hope this has given you guys some integration ideas for smart door locks you voice control with vox.