With a locking screw inside and a screw at the side for door thicknesses of 8 19 mm.
Rfid door lock bluetooth.
These will the be wired to the arduino with the 12 core alarm cable and block connector.
The rfid and lcd screen fits within the 33mm back box with a slot cut out for the lcd screen to fit through.
The ratchet is mounted on the inner sliding door and the lock can be attached effortlessly.
Battery life depends on the technology used and the quality of the battery.
For the servo to connect to the door lock i 3d printed a holder to be screwed to the door and attached to the door lock.
A wide variety of rfid bluetooth door lock options are available to you such as anti peep code tamper alarm and built in screen.