The RFID 13.56 MHz Card is a contactless smart card used for identification, access control, and authentication systems. Operating on high-frequency (HF) RFID technology, it communicates wirelessly with compatible RFID readers without requiring physical contact. These cards are widely used in attendance systems, door access control, cashless payments, and embedded security projects.
Core Card Specifications
• RFID Type: Passive contactless card
• Operating Frequency: 13.56 MHz (HF)
• Standard: ISO/IEC 14443A (commonly MIFARE-compatible)
• Power Source: Passive (powered by reader field)
Electrical & Interface
• Communication Method: Inductive coupling
• Read Range: Typically 2–10 cm (reader dependent)
• Data Transfer: Contactless RF communication
• Card UID: Unique identification number (factory programmed)
Performance Characteristics
• Fast and reliable card detection
• No physical wear due to contactless operation
• Stable performance over repeated use
• Reading speed suitable for quick authentication
Physical Characteristics
• Card Material: PVC plastic
• Card Size: Standard credit card size (CR80)
• Thickness: ~0.8 mm
• Lightweight and durable construction
Compatibility
• MFRC522 RFID reader modules
• PN532 NFC/RFID readers
• Arduino, ESP8266, ESP32
• STM32 and Raspberry Pi systems
Key Advantages
• No battery required
• Unique ID for secure identification
• Easy to use and replace
• Widely supported by RFID readers
Technical Insights
• Operates only within short range for security
• UID cannot be changed on standard cards
• Some variants include memory blocks for data storage
• Anti-collision supported for multiple cards
Applications
• Access control systems
• Attendance and time tracking
• Cashless payment systems
• Asset and ID management
• DIY embedded security projects
Pro Tip
• Keep cards away from strong magnetic fields
• Use proper reader antenna orientation for best range
• For writable data, choose memory-enabled RFID cards
Package Includes
• 1 × RFID 13.56 MHz Card