USBTORS232原理图，PCB图，可用PROTEL打开，附DATASHEET,windows驱动，希望能给需要的朋友带来方便。-USBTORS232 schematics, PCB diagrams, available PROTEL open, with DATASHEET, windows drivers, hoping to give a friend in need convenience.

usb转rs232，在串口通信中可以将USB接口转接成你的串口类型。-usbTOrs232