串口转wifi模块的文档，主要是介绍了at命令部分，感觉所有的at命令各个厂家都差不多。所有可以下载下来笼统的看看，等用的时候自己查下就好了。-Serial to wifi module' s documentation, is introduced at the command part, I feel all the various manufacturers are almost at command. You can download all general look, such