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 ...

This project writes custom data to a MIFARE Classic RFID card using an MFRC522 RC522 RFID reader and an Arduino-compatible board. The program authenticates a selected memory block using the default ...

What do you do with an RFID chip implanted in your body? If you are [gmendez3], you build a bike lock that responds to your chip. The prototype uses MDF to create a rear wheel immobilizer. However, ...

The use of Radio Frequency IDentification (RFID) technologies is growing. Many different applications are implemented in various sectors, and used for very different purposes. RFID enables wireless ...

Turn a Waveshare RP2040-Zero and an MFRC522 (RC522) RFID module into a plug-and-play USB RFID reader. Tap a 13.56 MHz card and the board "types" the card's UID — as a fixed 10-digit number followed by ...