The RC522 module adopts the RC522 original chip design card reader circuit, which is easy to use and low in cost. It is suitable for users of advanced applications such as device development and card reader development, and users who need to design/produce RF card terminals. This module can be directly loaded into various reader molds. The module adopts a voltage of 3.3V, and can be directly connected with any CPU motherboard of the user through a few lines of the SPI interface, which can ensure stable and reliable operation of the module and long reading distance;
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