变形V3.0

常用的DIP28封装库，适用于Autium Designer 的元件常用PCB封装(Common dip28 package library, common PCB packaging for autiumdesigner components)

BK4815模块基本功能，对讲机最小模块(The basic functions of the BK4815 module)

很好的candence教程，含原理图PCB和例程，可以配合视频边学边做(Good candence tutorial, including schematic PCB and routines, can cooperate with video while learning to do)

说明：  矢量网络分析仪的基本原理，内容详细，实用！(Basic Principle of Vector Network Analyser)

原理采用Altium Designer软件设计，内含MPPT的BUCK拓扑结构、DCDC复制电源转换、微控制器等电路(The principle is designed by Altium Designer software, including MPPT BUCK topology, DCDC copy power conversion, micro controller and so on)

说明：  包含主板，驱动板，运放等所需全部板工程文件(Contains all board engineering files required for motherboard, driver board, op amp, etc.)

说明：  通过arduino mega2560驱动2步进电机 以及附加配件如显示器蓝牙等(Drive 2-step motor and additional accessories such as display Bluetooth through Arduino mega2560)

基于STM32F407实现人脸识别和指纹识别的考勤系统硬件设计。(Hardware Design of Time and Attendance System Based on STM32F407 for Face Recognition and Fingerprint Identification.)

随着STM8的停产,新唐的N76E003 pin对pin替换STM8S003F3P6,而且很便宜,故这个时候拿来替换使用再好不过。(With the discontinuation of STM8, N76E003 pin of Xintang replaced STM8S003F3P6 with pin, which was very cheap, so it would be a good time to replace it.)

SIM卡普通卡座封装，大卡普通手机用的SIM大卡封装 来自摘抄(SIM card common deck package comes from the excerpt)