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