RFID-метка RC522 | Модуль индукционной карты-метки RF 13,56 МГц | Серийный интерфейс RS232 для чтения и записи

Our products are all made of environmentally-friendly materials and processed for lead-free process, which is in line with the RoHS standard. It is convenient for customers to do environmental certification.Many of the modules that have not been tested by antenna impedance are now sold, and even the customer's rework has a copy of our copy board module. The test found that the impedance completely deviates from our original design. This product is generally not a problem. Once a large number of applications are used in the product, the reliability will have a great potential, RFID products. It is necessary to test the impedance of the antenna.

RFID reading and writing module is sensitive to temperature. It is necessary to ensure stable and reliable work in cold winter and hot summer. In addition to the use of the positive chip, the temperature stability of the device is very important. Only the component parameters are stable to ensure that the impedance of the antenna does not change with the temperature. It is very important to test the high and low temperature environment during the product preparation stage and the replacement of raw materials after mass production.