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有限差分波动方程不加边界条件二阶正演时间切片程序。(Finite difference wave equation without boundary conditions of second-order forward time-slicing procedure.)

用单片机产生频率，占空比可调的方波，这是C语言的原代码。(Produced with single-chip frequency, variable duty cycle square wave, which is the C language source code.)

DDS9850，亲测可用，有中文解释，信号发生器(DDS9850, pro-test is available, there are Chinese explanation, the signal generator)

单片机串口通信的应用，通过串口，我们的个人电脑和单片机系统进行通信。 个人电脑作为上位机，向下位机单片机系统发送十六进制或者ASCLL码，单片机 系统接收后，用LED显示接收到的数据和向上位机发回原样数据。(Single-chip serial communication applications, through the serial port, our personal computers and SCM systems to communicate. PC as a PC, send down bit microcontroller system or ASCLL hexadecimal code, after receiving the SCM system with LED display received data and sent back up crew as data.)

通过单片机输入程序来对步进电机进行控制，以此实现一定功能。(Stepping motor single chip microcomputer)

说明：  科技创新(7)智能小车控制算法软件模拟实现，根据测量当前小车的位置、速度和预瞄点位置与赛道之间的关系控制小车的速度，舵机大小、档位、油门和刹车情况。(Science and technology innovation (7) intelligent car control algorithm simulation software to realize, according to the current measurement car position, velocity, and the position and the track point tracking the relationship between the speed of the car, steering gear control size, gear, throttle and brake. )

双步进电机综合控制 用于51单片机 (Dual stepper motor integrated control)

单片机课程设计 电子压力器的工作原理 电子压力器由压力传感器，A/D转换器，数码显示等组成。 (MCU Design pressure of the working principle electronic pressure is controlled by electronic pressure sensor, A/D converter, digital display and other components.)

读写器与射频卡通信的设计采用RC522射频读写芯片与射频卡进行通信，符合ISO14443规范协议；硬件系统设计中主要有AVR单片机主控模块、电源模块、存储模块、外部时钟模块、LCD模块；软件系统设计采用C语言，遵循模块化和结构化编程模式，设计了射频卡操作程序、软关机与自动关机程序、LCD显示、串行Flash存储器、外部时钟等外部设备驱动程序。所设计的手持式读写器具备对MF1 S50、S70射频卡的读写、实时状态显示、系统在线升级以及关机等功能。(This handset can process the data offline or online, reading and writing from 10 cm far. This handset is low-power, miniature, modular design and so on. This article includes: the communication design between RF card and Reader, hardware system design and software systems design. The communication design between RF card and Reader used to RC522 RF chip control RF cards, in line with ISO14443 standard protocol Hardware system design mainly include AVR microcontroller control modules, power modules, memory modules, external clock modules, LCD modules Software system designed with C programming language, and follow the modular structure of the programming model, and has the RF card operation procedures, soft shutdown and automatic shutdown procedures, LCD display, serial Flash memory, an external clock, and other external device driver Procedures. The handset readers has the MF1 S50, S70 RF card reader function, real-time status display function, the system online update function and so)

单片机SCM处理信号的自动聚焦系统，利用单片机SCMM控制光学镜头，实现自动聚焦功能， (MCU SCM processing a signal automatic focusing system, the use of the microcontroller the SCMM to control the optical lens, to achieve auto-focus function,)