this post was submitted on 15 Sep 2024
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What device can rotate a knob and works with HA? (feddit.it)
submitted 1 month ago by [email protected] to c/[email protected]
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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

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[โ€“] [email protected] 1 points 1 month ago* (last edited 1 month ago) (1 children)

Depends on the lock being actuated and the torque of the servo, I have some that can do 4.4 N-m.

https://www.amazon.com/high-torque-servo/s?k=high+torque+servo

A stepper motor would also work for sure.

[โ€“] [email protected] 1 points 1 month ago

TIL about high torque servos.