RC522 13.56MHz RFID Sensor Module with Reader Card

OverviewThe RC522 13.56MHz RFID Sensor Module with Reader Card is a compact, cost-effective RFID reader/writer based on the popular RC522 chip. Designed for fast contactless communication at 13.56 MHz, this module is perfect for hobbyists and professionals integrating RFID into access control, attendance systems, smart home devices, and automation projects.Key AdvantagesHigh compatibility: Works with ISO14443A/MIFARE tags including MIFARE 1K and 4K.Easy integration: SPI interface supports up to 10 Mbps for quick communication with microcontrollers.Read/write support: Read ID, write data blocks and manage card memory for secure applications.Compact and low power: Small footprint and 3.3V operation make it ideal for embedded and battery-powered solutions.Integrated antenna: Onboard antenna ensures stable tag detection within its operating distance.SpecificationsChip: RC522Operating frequency: 13.56 MHzInterface: SPI (up to 10 Mbps)Power supply: 3.3V DCOperating distance: Up to 5 cm (varies by tag and environment)Supported cards: MIFARE 1K, MIFARE 4K, ISO14443A compatible tagsPackage: Module, 13.56 MHz RFID card, 13.56 MHz key fobApplicationsAccess control systems and secure door entryAttendance tracking for schools and workplacesSmart home automation and device authenticationInventory tagging and short-range identificationPrototyping and educational electronics projectsIntegration and WiringThe RC522 module uses SPI pins for communication. Typical connections to a 3.3V microcontroller are:VCC to 3.3VGND to groundMOSI to MCU MOSIMISO to MCU MISOSCK to MCU SCKSDA (SS) to MCU chip select (assignable)RST to MCU reset or GPIODo not connect the module to 5V directly. Use a 3.3V supply or a level shifter when interfacing with 5V logic.Software and Example UseThere are many open source libraries and examples for Arduino and Raspberry Pi that support the RC522. Example features you can implement:Read UID and display on serial monitorAuthenticate and read/write MIFARE blocksUse multiple tags to trigger actions in automation projectsImplement simple access lists and attendance loggingTips for Best PerformanceKeep tags within 5 cm of the module for reliable reads.Avoid metal surfaces near the antenna to prevent interference.Use quality MIFARE cards/fobs for consistent results.Ensure stable 3.3V power to avoid communication errors.Package Contents1 x RC522 RFID Sensor Module (13.56MHz)1 x 13.56 MHz RFID Card1 x 13.56 MHz RFID Key FobNote: Product images are for illustration only. Actual product may vary slightly in appearance.Get StartedThe RC522 13.56MHz RFID Sensor Module is an affordable, flexible solution to add short-range RFID read/write capability to your next project. Whether you are building an access control system, attendance logger, or interactive installation, this module provides a simple way to integrate MIFARE and ISO14443A tag support with common microcontrollers. Categories: Boards, Modules and Accessories, Wireless Communication Tags: access control, Contactless Identification, ISO14443A RFID, MIFARE RFID, RC522, RFID Automation, RFID Card, RFID Key Fob, RFID Reader Module, RFID Writer College Road Electronics4.85 (317 Reviews)