Such as the accuracy of frequency measurement based on the principle of design,...

i2c的代码程序，在５１下调通，稍加修改就可以在其他单片机上实现-i2c code procedures, in 51 pass down a little modification can be achieved in other single-chip microcomputer

读标准韦根26码的程序，效果不错，只是需要后上电-Reading standard Wiegand 26 yards of the procedure, good results, but needs power

单片机结合简单外围计数电路设计的频率计，内附电路和c源代码-Single-chip combination of a simple design of the external counting circuit frequency meter, enclosing the circuit and c source code

数码管显示，并且带有按键功能，按键实现数码管时钟的计时。-take count of clock

c8051f020 pca 的简单应用程序-c8051f020 pca simple application

这是一个用于实现电脑和pic单片机通讯的，通过usb接口的通讯程序！第二部分-This is a pic for the realization of single-chip computer and communications through the usb interface of the communication process! Part II

超小gps+msp430的部分原代码,有需要的普有可以-Ultra-small gps+ Msp430 part of the original code, there is a need to have the S

C51写的一个汉字拼间输入的源码，很有用的-C51 Chinese characters written by a fight between input source, a very useful

用proteus进行的开发，和刚上传的c文件一起用-Proteus carried out with development, and the newly uploaded file with c

利用51单片机+sl811芯片实现对u盘的读写功能，代码为C++实现，可供大家参考使用-The use of 51 SCM+ Sl811 chip of u disk read and write functions, the symbol C++ Realize for U.S. use and reference