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 ...

┌────────────────┐ ┌──────────────┐ │ Arduino Uno │ │ MFRC522 RFID │ │ │ │ Module │ │ 3.3V ───────── │ VCC │ │ GND ───────── │ GND │ │ D10 ───────── │ SS (SDA) │ │ D13 ...

If you want to learn more about RFID readers, how they work and how to use one you can check out our tutorial on how to interface RFID reader with Arduino. After completing the circuit, I assembled ...

For starters, you need a pre-wired NFC RFID module as the key hardware. NFC and RFID projects have become a huge trend, but many modules are pricey for electronics hobbyists and need a complex setup.