RC522 is a Multi-communication RFID Module for Arduino and Microcontrollers. The RC522 is known as MFRC-522 due to its NFX semiconductor microcontroller. The module allows the developers to interface it with any other SPI, I2C, and UART based microcontrollers.

Jun 12, 2019 · The RC522 is a 13.56MHz RFID module that is based on the MFRC522 controller from NXP semiconductors. The module can supports I2C, SPI and UART and normally is shipped with a RFID card and key fob.

Feb 9, 2025 · This is the MFRC522 RFID module that we will be using with the Arduino Uno. RFID Means Radio frequency identification. RFID uses electromagnetic fields to transfer data over short distances. You can use an RFID system to open a door, It can be used to make a student attendance system, It can be used to control a machine; it can be used in cars ...

Radio-Frequency Identification (RFID) Sensor technology utilizes electromagnetic fields to identify and track tags attached to objects. Unlike barcodes that require line-of-sight scanning, RFID operates wirelessly, allowing for quick and seamless data capture.

What is RFID technology and how does it work? An RFID (Radio Frequency Identification) system consists of two main components: a reader and a tag. The RFID reader contains a radio frequency module and an antenna that creates a high-frequency electromagnetic field around it. The RFID tag is attached to whatever object we want to identify or track.

PN532 RFID Module Pinout Configuration. PN532 offers multiple communication methods. So, its number of pins is a little high from other RFID but in the circuit, only some pins are useable at a time. The pin diagram shows all these pins:

The RFID reader automatically goes to power save mode after its operation is complete and it takes a 10-13mA standby current. We can use this type of module in various applications, such as access control systems, identification systems, and inventory management. RFID RC522 Sensor Pin Configuration Pinouts of RFID RC522 Sensor

Feb 7, 2017 · RFID stands for Radio-frequency identification and can be used for many application that require an identification mechanism. In this tutorial, it is shown how to use the RFID-RC522 module with the Arduino Uno. The RFID-RC522 module is an RFID reader, which can read RFID tags in close-range.

Apr 9, 2022 · Here we will discuss the What is RFID RC522 Module, Hardware Overview, Pin Diagram, Working Principle, Specification/Features, and Applications. The RC522 RFID Reader/Writer Module (Transceiver) is based on a highly integrated reader/writer IC MFRC522 from NXP Company. It is used for contactless Multi-communication at 13.56 MHz.

In this guide, we will learn how to Interface the RFID MFRC522 with ESP32 and how to read the RFID tags and display it on a serial window using ESP32 and Arduino IDE.