The so-called M1 chip, refers to the subsidiary of Phillips subsidiary NXP produced the chip abbreviation, all known as the NXP Mifare1 series, commonly used S50 and S70 two models, as of November 4, 2013, has a domestic chip and its Compatible with the use of PVC packaging M1 chip, sensor antenna, and then press the card after making the card is the smart card industry that M1 card, are non-contact IC card. Non-contact IC card, also known as RF card, successfully solved the passive (no power card) and contact with this problem, is a major breakthrough in the field of electronic devices. Mainly used for public transport, ferry, subway automatic toll collection system, also used in access control management, identification and electronic wallet.
M1 card, the advantage is readable and writable multi-function card, the drawback is: the price is slightly expensive, the sensor distance is short, suitable for non-fixed consumption system, parking system, access control time and attendance system.
Mifare Desfire Card Reader Handheld RFID play the important part in this field
Send a fixed frequency of electromagnetic waves to the M1 card, the card has an LC series resonant circuit, the frequency and the reader to send the same frequency, in the electromagnetic wave excitation, LC resonant circuit resonance, so that the capacitor has a charge , At the other end of the capacitor, there is a one-way conduction of the electronic pump, the capacitance of the capacitor to another capacitor storage, when the accumulated charge reaches 2V, this capacitor can be used as power for other circuits to provide work Voltage, the card out of the data or access to the reader data.
Mifare/desfire ev2 cards handheld RFID reader read the Mifare/desfire ev2 cards fast and easy.
