###安装 ```shell opkg install kmod-usb-serial kmod-usb-serial-pl2303 ``` 安装完成之后需要手动载入内核模块: ```shell insmod usbserial insmod pl2303 ``` ###测试 插入USB转串口模块之后,在```/dev```目录可以看到```ttyUSB0```设备. ###使用串口 ####使用shell 读取: ```shell cat /dev/ttyUSB0 ``` 写入: ```shell echo "hello" > /dev/ttyUSB0 ``` ####使用Screen应用 screen和SSH登录的效果一样,具有高亮提示,命令格式: ```shell screen /dev/ttyUSB0 115200 ``` ctrl +a+k退出 ####使用minicom 设置minicom -s 波特率等 ctl +a调出菜单 1. [Using GNU screen to debug your serial port](http://embeddedfreak.wordpress.com/2008/08/12/using-gnu-screen-to-debug-your-serial-port/) 2. [Sending Message to Serial Port of Router using Lua](http://www.ediy.com.my/index.php/blog/item/40-send-message-to-serial-port-or-router-using-lua) 3. [Serial Programming Guide for POSIX Operating Systems](http://digilander.libero.it/robang/rubrica/serial.htm)