In this tutorial, we have discussed the Rfid-based Security System using Arduino Uno.
We have used the RC522 Rfid Reader & tags in this system. The buzzer & SMS get triggered when a tag is scanned which is not in the list of authorized tags. And the servo motor showing the Door lock set to the Open Position as we scan the authorized tag.
Based on these, We are also showing "Access Granted" or "Access Denied" on the LCD Display.

Code & Circuit Link:- [ Ссылка ]
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