IoT Lock System for Multiple Doors

From IoT_lover on Hackster.io:

Normal RFID Lock: a device which prevents something such as a door being opened and which you can only open with some specific RFID Tags.

RFID IoT Lock: a RFID lock connected to internet with some additional features:

• Access permission is managed by a server which allows flexibility in managing the system especially with multi-door and multi-user.
• The accessed history is stored in database

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