为了节约成本，我把2410的扩展板子四层改成了2层，这个是PCB图。大家感兴趣的话可以下载。很费了我一番功夫的啊！-In order to save costs, I put 2410 expansion board into the four two-storey, this is a PCB plans. Members interested in can be downloaded. I spent a very birthright of ah!