RFID Module (MFRC522) for Arduino – 13.56MHz

RFID Module (MFRC522) for Arduino – 13.56MHz The MFRC522 RFID Module is a compact and affordable RFID reader/writer designed for 13.56MHz contactless smart cards and RFID tags. It communicates with microcontrollers via the SPI interface, making it ideal for Arduino, ESP8266, ESP32, Raspberry Pi, and other embedded systems. This module is widely used in access control, attendance systems, security projects, and IoT applications. Specifications Model: MFRC522 RFID Reader Module RF Chip: MFRC522 Operating Frequency: 13.56MHz Operating Voltage: 3.3V DC Operating Current: 13–26mA (Typical) Communication Interface: SPI Reading Distance: Up to 50mm (depending on tag and environment) Supported Card Types: MIFARE Classic 1K, MIFARE Classic 4K, MIFARE Ultralight, and other ISO/IEC 14443 Type A compatible cards Data Transfer Rate: Up to 10Mbps (SPI) Operating Temperature: -20°C to +80°C Module Dimensions: Approx. 40 × 60 mm Features 13.56MHz RFID reader and writer Built-in onboard antenna Fast SPI communication interface Low power consumption Compact and easy-to-use design Compatible with Arduino, ESP8266, ESP32, Raspberry Pi, and STM32 Supports ISO/IEC 14443 Type A RFID cards and tags Widely supported by Arduino libraries and example projects Package Includes 1 × MFRC522 RFID Reader Module 1 × RFID Card (13.56MHz) 1 × RFID Key Fob (13.56MHz) 1 × 8-Pin Male Header Applications RFID access control systems Attendance management systems Door lock and security systems Arduino and ESP8266 projects IoT authentication devices Smart home automation Asset tracking DIY electronics projects Note: The MFRC522 operates at 3.3V and is not 5V tolerant. When using with a 5V Arduino board, ensure the SPI signals are level-shifted or use a compatible interface to prevent damage to the module.