RFID RC522 MIFARE Module

Product Contents

• 1 - RC522 MIFARE RFID module
  
• 1 - 1x8 straight male header
  
• 1 - 1x8 90 degree angled male header

Specifications

• RFID, or Radio Frequency Identification, is a system for transferring data over short distances
  
• Often only one of the two devices needs to be powered, while the other is a passive device, as no power source is required for radio data transmission
  
• Ideal for use in such things as credit cards, key FOBs, and pet collars, because there is no need for battery power
  
• Can read at distances of 5cm (1.97in) for cards, 3cm (1.2in) for FOBs
  
  • The size and tuning of the antenna and the power supply voltage have a significant impact on the achievable operating distance, therefore two of the same RFID card/FOB may not have exactly similar read/write ranges due to slight differences in their internal antenna windings
    
  • Orientation of a tag (card/FOB) in relation to the RC522 module's antenna as well as nearby metal objects/wires can also have a significant impact on operating distances
    
• Operating Frequency: 13.56MHz
  
• Security: each card has a unique ID number to prevent counterfeit, and each transmission passes through 3 sets of 28-bit encryption, alleviating possibility of interception
  
• Transmission speed: 106KB/sec
  
• Working current: 13-26mA/DC 3.3V
  
• Idle current: 10-13mA/DC 3.3V

Resources

• Addicore RFID Quick Start Guide for Arduino (PDF)
  
• Addicore RFID Arduino Library (Github)
  
• Another RFID Library (Compatible with Arduino and other boards) (GitHub)
  
• RC522 RFID Energia Library (from Frank Milburn)
  
• MIFARE MFRC522 RFID Datasheet (IC on the reader/writer module)
  
• History and Information about MRFC522 Reader/Writer