博控JN5139的硬件电路设计图，用户可以根据这张图开发设计JN5139电路板-Bo JN5139 control hardware circuit design, users can develop designs based on this chart JN5139 board

JN5139的protel原理图设计，protel99下打开可以直接使用-JN5139 of protel schematic design, protel99 can use to open