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C51 编的音乐程序，关于如何编制音乐代码, 其实十分简单，频率常数即音乐术语中的音调,而节拍常数即音乐术语中的多少拍(C51 music program)

关于单片机设计的电子钟的程序及设计，提供最新的代码。(On single-chip design process of electronic bell and design, with the latest code.)

none1.The content is too simple 2.Is not a sourcecode or document 3.lost some files 4.Description is not detailed or not correct 5.Compressed file has password 6.Sourcecode duplicate or already exist Please do not upload copyrighted content and the file which has trojan or virus

我花3000块钱在深圳买的一个电动车控制器方案，有图纸有源代码，也有PCB文件。功能也很齐全欢迎大家下载。(I spent 3000 yuan in Shenzhen to buy an electric vehicle control program, there are drawings, source code, there are PCB files. Function is also fully welcome to download.)

这虽然是一个非常简单易行的时钟程C序，适合初学者(Although this is a very simple clock Cheng C sequence, suitable for beginners)

STC单片机驱动TLS3001LED芯片源码(STC microcontroller chip driver source TLS3001LED)

stm32f103测正弦波、方波的波形频率。(Measurement of waveform frequency by STM32F103.)

基于STM32的三相带霍尔的无刷电机控制源码，功率控制，转速pid调节，过压欠压保护，过流保护，等(STM32-based three-phase brushless motor with Hall of source control, power control, speed pid regulation, over-voltage protection, overcurrent protection, etc.)

can control 与 can bus Gateway 通信(can control and communication can bus Gateway)

液压力控制系统的稳定性仿真实验及伯德图和Nyquist图(Hydraulic pressure control system stability simulation)