What is an Active Buzzer? An active buzzer is a small electronic component that makes a sound when you connect it to a power source (3V-5V).It has an internal oscillaor, so it doesn't need extra ...

RFID Module: Reads the UID from an RFID tag/card. If the UID matches the authorized UID, access is granted. This project is open-source and can be freely used for educational purposes. I demonstrate ...