Description
RFID lock system works as when you will put the correct card to open the servo lock then “card is valid” this message will display and the green LED will turn on. The door will close automatically after a delay of three seconds, you can adjust this time in the code. For the invalid card the red LED will turn on with the message “card is invalid” and the buzzer starts beeping. The servo motor will rotate to open or close the gate. When you put an RFID card on the reader module then open the serial monitor to view the tag id of that card as shown below.
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