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 ...

一个基于ESP32和PN532的RFID读写器，可以读写M1、UID、CUID、FUID、带NFC功能的手环、手机等，门禁卡解决方案的不二之选。设计的板子引出UART接口，可用于连接外部主机进行调试，同时USART通过开关连接到ESP32，将采集的数据通过ESP32的蓝牙或WiFi传输。 ESP32-WROOM-32 ...

The Framework laptop will no doubt already have caught the eye of more than one Hackaday reader, as a machine designed for upgrade and expansion by its users. One of its key features is a system of ...

If you are searching for an easy way to add biometric fingerprint sensor to your project you may be interested in a new wireless open source ESP32-based fingerprint module equipped with NFC created by ...

The Chinese chip manufacturer Espressif is known for its cheap and widely used microcontrollers with integrated WLAN, ESP8266 and ESP32. The new ESP32-P4 is significantly more powerful because it ...