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In the smart era of the Internet of Everything, the interconnection between smart homes and mobile phones is an extremely important part. Huawei's Harmony OS system is also oriented to the Internet of Everything. Its method of connecting mobile phones with one touch requires NFC to be an indispensable function for smart devices. This article takes the blood pressure monitor in a smart device as an example to explore how the blood pressure monitor with NFC function can be used more conveniently t

In card reader mode, we can verify through the NCI command defined in PN7160. We can perform verification control through PN7160's own commands.