Modular access control and alarm system.
Modules work as a mesh over WiFi, and one connects to a back end cloud management system. PCB designs are included (KiCad) as are 3D printable case designs.
Example of access control PCB.

Cloud back end for management of devices without the need for on-site controller. Runs on linux with mariadb and apache.
An instance of the cloud management system is run on https://access.me.uk/ by Andrews & Arnold Ltd, and provisioned DESFire cards can be ordered printed to your design.
Copyright © 2019-21 Adrian Kennard, Andrews & Arnold Ltd. See LICENCE file for details. GPL 3.0