RFID AddiKit with RC522 MIFARE Module, RFID Cards, and RFID Fobs

Product Contents 1 - RC522 MIFARE RFID module3 - Key ring fobs with 1KB on-board EEPROM5 - RFID cards with 1KB on-board EEPROM1 - 1x8 straight male header1 - 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) MF1ICS50 RFID Chip Datasheet (IC inside the RFID cards and fobs) History and Information about MRFC522 Reader/Writer