开发板的模块设计参考文档，共初学者使用，参考(Development board module design reference documentation for beginners)

智能路由器开发指南为pdf格式书籍，解压后可以直接看，欢迎热爱开源路由的创客下载(The guide for the development of smart router is a PDF book. You can read it directly after decompression. Welcome to download it for makers who love open source routing)