RC522 RFID 13.56MHz Reader/Writer Module

The RC522 RFID 13.56MHz Reader/Writer Module is a compact and high-performance contactless RFID module designed for reading and writing 13.56MHz RFID cards and tags based on the MFRC522 integrated circuit. It supports the ISO/IEC 14443 Type-A communication standard and is widely used in access control systems, attendance systems, smart card applications, electronic identification, and embedded system projects.

The module communicates with microcontrollers through an SPI interface, enabling fast and reliable data transfer. Operating from a 3.3V DC power supply, it offers low power consumption and stable performance, making it suitable for battery-powered and portable applications. The onboard antenna provides efficient short-range RFID communication with a typical reading distance of 2 to 5 cm, depending on the RFID tag type and environmental conditions.

The RC522 RFID Reader/Writer Module is fully compatible with Arduino, ESP32, ESP8266, Raspberry Pi, STM32, PIC, AVR, and other microcontroller platforms. It supports both reading and writing operations for compatible MIFARE® 1K, MIFARE® 4K, MIFARE® Ultralight, and NTAG RFID cards and tags, making it an excellent choice for developing secure identification and automation systems.

Designed with a compact PCB and standard pin headers, the module is easy to integrate into electronic projects. It is widely used in RFID-based door access systems, attendance management, cashless payment systems, inventory management, smart lockers, industrial automation, IoT devices, robotics, educational laboratories, and DIY electronics projects.

Features

• Based on the MFRC522 RFID controller IC

• Operates at 13.56MHz frequency

• Supports ISO/IEC 14443 Type-A RFID standard

• Read and write capability for compatible RFID cards and tags

• SPI communication interface

• Operating voltage: 3.3V DC

• Low power consumption

• Typical reading distance: 2 to 5 cm

• Fast and reliable data communication

• Compact PCB design with onboard antenna

• Easy interfacing with Arduino, ESP32, Raspberry Pi, and other microcontrollers

• Stable and reliable performance

Applications

• RFID access control systems

• Employee attendance systems

• Smart card authentication

• Electronic identification systems

• Cashless payment systems

• Smart lockers

• Inventory and asset tracking

• Industrial automation

• Home automation

• IoT projects

• Arduino projects

• ESP32 and Raspberry Pi development

• Robotics and embedded systems

• Educational STEM projects

• Laboratory experiments

• DIY electronics and automation projects