PCB布线规则，亲身实测有效，希望能够帮助到大家-PCB wiring rules, personally measured effective, hoping to help to everyone

双路电机驱动原理图及PCB布线图，两个电机单独控制，可以实现电机的正反转，电机的PWM速度控制。(Dual motor drive schematic diagram and PCB wiring diagram, two motors separately control, can achieve positive and reverse motor, motor speed control of PWM.)

新手学习PCB设计进阶篇，提升PCB画板能力。(Novice learn PCB design advanced, improve PCB drawing board ability.)

全书共19 章，主要内容包括：原理图设计，元件库制作，PCB 元件的布局、布线，Gerber 及相关生产文件输出的设计流程，PADS 高级功能应用，多层印制电路板的设计原则与方法(The book consists of 19 chapters, including schematic design, component library production, layout and wiring of PCB components, design process of Gerber and re