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STM32+OV5640打造高清USB摄像头，内含说明文档，是学习UVC协议的好例子。(STM32+OV5640 create high-definition USB camera, containing documentation, is a good example of learning UVC protocol.)

AD5933评估板下位机程序（keil C）和上位机程序（VB）(AD5933 Evaluation procedures under the plan (keil C) and PC (VB))

说明：  STM32F103ZET6程序模板，包含IIC,SPI,ADC,串口等的C文件和H文件程序(Stm32f103zet6 program template, including IIC, SPI, ADC, serial port C file and H file program)

基于STM32F103利用SPI协议，RC522多功能读取，修改，删除卡片(Based on STM32F103 and SPI protocol, RC522 can read, modify and delete cards with multiple functions.)

检测电路输出电压变化量，控制电压变化量在规定的变化区域内变化。且让MSP430F149单片机的IO口输出由小逐渐增大的信号作为电流参考信号，输入到比较器的同相输入端。(The change in output voltage detection circuit, the control voltage changes the amount of the required changes within the region. Let MSP430F149 microcontroller IO port output signal from the small increases as the current reference signal input to the comparator s inverting input.)

1. 书中所有源程序, 在CPP子目录下, CPP.EXE是压缩可自释放的文件, 在DOS 下运行该文件即可释放 2. 书中程序的部分演示程序(源程序的编译), 在DEMO子目录下, 运行压缩文件 DEM.EXE释放, 然后运行DEMO.BAT演示 3. 精简UCDOS 3.0汉字系统, 含一个24点阵宋体字库, 在UCDOS子目录下, 运行 UCD.EXE释放。(1. The book all the source code, in the CPP, under a subdirectory, CPP.EXE is available since the release of compressed files, in DOS the file can be run under release 2. Book procedures demo programs (source code compiler), in the DEMO subdirectory, run DEM.EXE the release of compressed file, and then run DEMO.BAT presentation 3. UCDOS 3.0 to streamline the system of Chinese characters, including a 24-dot matrix font宋体in UCDOS subdirectory, run UCD.EXE release.)

基于M0516的魔球灯控制程序，内含原理图，功能有内置PWM加模拟PWM线性调光，炫耀的自走程序与声控程序，主从控制模式，IIC协议，485通讯DMX512协议，74HC595控制四位3461共阴数码管，ULN2803电机驱动程序(M0516 based magic ball lamp control procedures, the enclosed schematic diagram, function has a built-in PWM analog PWM linear dimming, showing off the go program with voice control, master-slave control mode, the IIC agreement, 485 communication DMX512 protocol, 74 hc595 are needed to control the four digital tube, 3461, a total of Yin ULN2803 motor drivers)

stc51单片机上对04-多路ADC转换-BandGap-模拟串口发送例程(Stc51 microcontroller on the 04- multi-channel ADC conversion, -BandGap- analog serial port to send routines)

普通PC键盘作为输入设备与单片机串行连接，通过单片机解码PS2键盘，七段数码管显示按下的键值，是把键盘作为输入扩展的不错的例程，源码采用KEIL C编写。(keyboard input)

说明：  在freertos操作系统下采用modbus协议进行rs485通讯(485 communication using Modbus protocol under FreeRTOS operating system)