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
The issue is going to be that you need 3 full turns. It also sounds like you’re not actually describing a “knob”, meaning a normal doorknob, but some sort of metal wheel.
Picture may be more helpful, but it certainly sounds like nothing would exist for this.