Electronic door locks - What to buy?

Hardware
1

Country: Germany

Criteria:

  • No external server connection needed, not even for setup.
  • Possible to do properly secure the management connection.
  • Pin pad with exponential backoff ratelimiting.
  • NFC interface for phone challenges.
  • Reasonable physical security that is not circumventible with stupid tricks. Must at least be as visible as destroying the door.
  • Remote open.

Maybes and Undecideds, can you give opinion?:

  • Works without battery with fixed power supply? But that still does not work with power outage. How do you deal with emergency access?
  • Fallback with physical key?
  • Should I install an electromagnetic opener in the doorframe or a motorized cylinder module?
  • Extra security on top of HA authentication and TLS would be interesting, so as not to depend on the integrity of huge software stack involved with HA and peripherals. Like the lock has some public key cryptography on top or multiple TOTP slots that can be put on a phone. (I don’t expect anyone to specifically compromise HA just for me. It is cheaper to break the door and install a similar looking door. But then again computer things are getting worse but more abundant and skilled craftspeople are in high demand and low supply.)
2

This will help you search answers already provided in addition to responses you get this post:
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1 Like
3

Have you eve looked at Homematic?

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You would need OpenCCU as additional integration plus a USB RF adapter. The unit mounts on your lock and turns the key. The communication is solely with OpenCCU/HA. It can therefore be used remotely through HA, while the door and lock mechanics remain untouched.

But if you consider installung a completely new door, you should look into integrating the motor directly in the door. Control then could for example be realized with some cheap ESP32 connection through ESPHome.

4

I tested Homematic with OpenCCU. Horrible.

  • Fragile connections. Every 2 days some device was somehow radio stuck and didn’t react nor report
  • OpenCCU concepts are not documented at all
  • OpenCCU Device group feature is arbitrarily not allowing devices to be grouped without explanation.
  • Sensors had frequent and gross calibration issues as soon as the batteries were either cold or less than 40%
  • Actors did not calibrate well either.

Dont know how this translates to locks. But HVAC stuff was shit quality.

5

I am sorry that you had a negative experience. My setup is perfectly stable. However, I am using only the lock plus some window handle RHS units.

That’s definitely not true. OpenCCU is totally transparent, including a huge and very active forum.

Regardless, it is surprising that someone would post something like that just 10 minutes after joining the Home Assistant forum. :thinking:

7

Oh no sounds like a conspiracy. /s

Reading the docs, I see what nilgas is about. I read a lot of stuff about installing the things around the thing. But not how I use the actual installed thing.
The homematic forum is too full of specifics but it is not clear where to find an overview.
Not convinced.

Also despite not explicitly stated. I already have homeassistant. I don’t want yet another device/VM/SetOfSettings to maintain.