I was accidentally locked out of home again, and I had to call a professional to open the lock.

But if someone was home, they could have just turned the knob of the door from inside. There’s a device that can do that? It needs to do 3 full turns and it requires a bit of force to do that (armored door with iron bars that slide in every direction, so it has a big inertia to start)

I saw a ready solution on a store, the iseo x1r, but that costs 1000 euro + another 200 for the gateway (not mandatory but otherwise it uses proprietary Bluetooth protocol and so it can’t talk with HA

2 points

If you don’t mind me asking, why do you have such a door in your home?

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3 points

Lives in a bank vault.

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1 point

As one does.

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1 point

https://www.switch-bot.com/products/switchbot-lock

Not sure if it’s compatible with your particular lock, but I’ve got switchbot stuff integrated into home assistant without issue (using their hub).

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2 points

Nice this looks compatibile, except for the open sensor, my door has an ultra thick frame and it’s only possible to install it at 12 cm, while the guide says 4 cm max. Does it really need it?

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1 point
*

It is used to detect closing of door and lock the door once it is closed. You may need it during the initial setup. as long as it can be placed close to the door lock, it should work ok.

otherwise, once integrated with HA, you can probably use your own contact sensor and trigger door lock using HA

btw, i am using ESPHome bluetooth proxy with Switchbot

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28 points

It sounds like you have a heavy duty door lock to be very secure, but you are essentially trying to backdoor all that security with a new internet-connected thing. An adversary only has to break the weakest link here, rendering the physical door lock obsolete.

If you are just going to have some digitally-connected device ultimately controlling access to the house, I’d go with just some standard door lock that does that (i haven’t used em but they exist). The physical lock on those is surely less what you have know, but with your proposed solution the physical lock probably isnt what people who crack anyway.

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4 points

Yes, but now you’re weakening two aspects of the security, not just one. And for the digital solution you would also need to (break into the network + break into HA) -or- (break zigbee/zwave/thread) + be physically present to take advantage. I would argue this is generally more secure than a mass-produced lock with unknown vulnerabilities that’s easily recognizable from outside.

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4 points

It’s not high tech, but a door lock with a simple pin pad has been great at my house. Never have to worry about having keys or getting locked out. Just have to change some batteries every six months or so. This isn’t Internet connected, but I see that as a benefit.

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1 point

How about a retrofit smart lock?

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Home Assistant is open source home automation that puts local control and privacy first. Powered by a worldwide community of tinkerers and DIY enthusiasts. Perfect to run on a Raspberry Pi or a local server. Available for free at home-assistant.io

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