AD1939

说明：  能利用stm32f4+ov5640去识别黑色(Recognition of Black Using stm32f4+ov5640)

Scheduling With Short Term Security Constrained Unit Commitment

The IPv4 broadcast address, or null for IPv6.

简易的电子琴，实现小字组、小字一组以及小字二组的乐音，可读取txt文档乐谱以及其他读写功能。(Simple keyboard, to achieve small print group, and a group of small print small print tone two groups can be read txt documents to read and write music, and other functions.)

555定时器（时基电路）是一种用途广泛的模拟数字混合集成电路。1972年由西格尼蒂克斯公司（Signetics）研制；设计新颖、构思奇巧，备受电子专业设计人员和电子爱好者青睐；它可以构成单稳态触发器、多谐振荡器、施密特触发器和压控振荡器等多种应用电路。5 55定时器是一种中规模集成电路，它使用灵活、方便，被广泛应用于脉冲的产生、整形、定时和延迟等电路中。文中介绍了555定时器及其逻辑功能，以及由其构成的多谐振荡器的工作原理，通过举例论述了555多谐振荡器在模拟救护车声响电路中的应用，说明在实际生产中，只要将其各个功能加以综合应用，便可得到许多实用电路。 (555 timer (time base circuit) is a versatile analog-digital hybrid integrated circuit. Trinity Lakes in 1972 by Sigma Corporation (Signetics) development layout and design, the idea of Kit Kat, much electronics design professionals and electronic enthusiasts favor it can constitute a monostable, multivibrator, Schmitt Triggers, and a variety of applications such as voltage-controlled oscillator circuit. 5 Timer 55 is a medium scale integrated circuit, which uses a flexible, convenient, and is widely used in pulse generation, shaping, timing and delay circuits. This paper introduces the 555 timer and logic functions, and its composition multivibrator works, discussed through the example of 555 ambulances multivibrator sound in analog circuit applications, showing in the actual production, as long as Will be integrated application of its various functions can be many practical circuits. )

说明：  变结构PID仿真rar包，附加书籍资料PDF，[先进PID控制MATLAB仿真].刘金琨.高清文字版(Variable structure PID simulation rar package, additional book PDF, [Advanced PID control MATLAB simulation]. Liu Jinqi. HD text edition)

STC12C5A60S2单片机各模块程序代码和技术手册，程序代码已在开发板上调试通过，希望对大家有所帮助。(STC12C5A60S2 MCU program code for each module and technical manuals, program code already in development board through debugging, we want to help.)

基于st的m3单片机STM32f103 矢量控制 驱动交流异步电机的源程序(St m3 SCM STM32f103 vector control drive of the source of the AC induction motor)

说明：  ds18b20用于STM32单片机开发，有助于初学者学习，能更好地了解单片机能更好地了解单片机能更好地了解单片机能更好地了解单片机(The application of DS18B20 in the development of STM32 single chip microcomputer is helpful for beginners to learn, better understand single chip microcomputer, better understand single chip microcomputer and better understand single chip microcomputer)

4路数码管显示仪表，可以实现自动报警功能，c51实现(4 digital display instruments, automatic alarm function can be achieved, c51 achieve)