IO_MUX和GPIO交换矩阵是ESP32芯片的两个重要模块，它们用于将外设信号传输到GPIO pad上，实现灵活的IO配置。 IO_MUX是指输入/输出 ...

The problem stems from the lack of a USB port on the ESP32-CAM. That design decision leaves users in need of a USB-to-serial adapter that has to be wired to the GPIO pins of the camera board so ...

The live GPIO pin monitoring library sets up the ESP32 to stream information about what all of the pins are doing in real time to a webserver, which displays the information as a helpful graphic.