PowerPCB

说明：  OV7725摄像头驱动教程（霸道开发板）介绍，希望大家喜欢(OV7725 Camera Driver Tutorial (Hegemonic Development Board), I hope you like it.)

凌阳单片机SPMC75F2413A 的变频调速系统(Sunplus SCM Frequency Control System)

AOC品牌液晶显示器源代码，稳定量产版本。C语言，keil编译器，Realtek处理IC。完整的source insight和keil工程，对液晶显示器开发着非常有意义。(AOC brand LCD display source code, stable production version. C language, keil compiler, Realtek processing IC. Complete source insight and keil project, to develop a very meaningful LCD display.)

calculator with AVR microcontrller

直流式电机控制，适用于80c51系列产品，详细内容都在压缩包里面(Direct flow motor control, suitable for 80c51 series products, the details are in the compression package)

数码相框（一个简单的数码相框程序，有I2S，LED,LCD，按键等等）(Digital Photo Frame)

51-SPI-ST7585,用于C51 SPI方式驱动ST7585(51-SPI-ST7585, for SPI C51 mode driver ST7585 )

stm32用于软开关谐振电源LLC的设计，130K谐振频率(Stm32 is used to control resonance LLC soft switching power supply , 130k frequency)

Hadoop简单应用案例，包括MapReduce、单词统计、HDFS基本操作、web日志分析、Zookeeper基本使用、Hive简单操作等(Hadoop simple application cases, including MapReduce, word counting, HDFS basic operations, web log analysis, Zookeeper basic use, Hive simple operation)

本程序1、2主要是实现简单运算器和除法器的功能，可与C语言等嵌套使用。程序3 实现多选菜单的功能。(1,2 This procedure is mainly to achieve a simple arithmetic unit and the division' s function can be nested with the C language, etc.. Procedures for three multi-function selection menu.)