Use of Contactless IC Cards
Contactless IC card , also known as radio frequency card. It successfully solved the problem of passive (no power in the card) and contact-free. It is a major breakthrough in the field of electronic devices. It is widely used in electronic wallets, smart cards, campus cards, channel charge control, automatic bus ticketing, automatic parking fees, canteen sales, attendance and access control, scenic spot charges, hospital charges, etc. Cards include membership card, access control card, charge card, consumption card, bus card, student card, hospital visit card, scenic ticket card, point card, stored value card, shopping card, water card, etc. Contactless IC cards are mainly MIFARE ONE cards (that is, M1 cards). M1 card main indicators: The capacity is 8K bits, the EEPROM is divided into 16 sectors, each sector is 4 blocks, each block is 16 bytes, block is the access unit, and each sector has an independent set of passwords And access control. Each card has a unique serial number, wh