Arduino RFID technology works by using electromagnetic waves in the radio frequency spectrum for wireless communication and data transfer between RFID tags and readers. From supermarket anti-theft ...

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 ...

RFID Module: Reads the UID from an RFID tag/card. If the UID matches the authorized UID, access is granted. Ensure the RFID tag/card UID matches the authorized UID in the code. Use the potentiometer ...

I just received my RC522 RFID reader and made this simple Arduino access control system that uses the reader, a buzzer for the alarm and a relay shield for the security system. The relay can be used ...

RFID technology identifies objects using a unique identifier through an RFID tag and reader system. RFID tags can be read-only, with fixed identifiers, or read and write, allowing information updates.

Abstract: It is an intelligent face recognition access control system based on OpenMV, Arduino, RC522, Esp8266 WiFi module and Ali Cloud Internet of Things. It provides users with three ways to enter ...