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ESP32+PN532(RFID)组合板验证成功
第二版ESP32+PN532(RFID)组合板实物图: 上一节中第一版存在无法读取NFC设备信息的问题,打开PN532的读写软件,如下图所示,检查发现是元器件布局连接,IPEX天线座的连接以及铺铜存在问题。 将组合板的拨码开关关闭,实际上就是将PN532与ESP32断开,将USB转TTL连接 ...
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