低电压检测. A口低8位接键盘列线，键盘行线接VDDIO；B口高8位接LED // 按K1键 低电压为2.4v // 按K2键 低电压2.8v...

MS51单片机的一些设计包含原理图和源代码，可在proteus下仿真。。 备注：这些设计的源码是使用汇编语言编写的。-MS51 MCU contains a number of design schematics and source code, under the simulation in Proteus. . Note: these designs is to use the compilation of the source language.

这是关于电能检测芯片CS5460的说明,里面有多篇中文资料,还有汇编语言例子.-This is the power of the CS5460 chip testing shows that more of Chinese inside information, there are examples of assembly language.

此为用MSP430单片机写的128*64的液晶驱动和绘图等源程序-This is written with MSP430 single chip LCD 128* 64 graphics driver and source code, etc.

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

这是一个基于MCU的电机控制系统，单片机接收PC的信息，根据Modbus通信协议转换为相应电机控制命令。 整个程序在keil环境下开发，实现了电机的启动、停止、增速、减速、反馈运行时间和速度的功能。-This an MCU-based motor control system, the 8031 PC receiving the information, according to Modbus communication protocol conversion to the corresponding motor control commands. Keil in the whole process environment in development and the launch of the motor, stop, the growth rate, deceleration, feedback running time and speed functions.

单片机与时钟芯片ds1302接口程序，C语言代码，简单使用。-MCU and clock chip DS1302 interface program, C language code, simple to use.

软USB核的电力开关PowerSwitch-soft USB nuclear power switching PowerSwitch

自己编写的一个单片机控制红外发送与接收的红外接收源程序,同时自己也做了一个板实验,是成功的哦-I have written a single chip to send and receive infrared control infrared receiver of the source, at the same time also made a plate experiment was a success, oh

KeilC编译软件，是学习单片机的重要工具！本实例教程内容丰富！特别适合初学者！-KeilC compiler software, are an important tool for studying single-chip! Examples of rich content of this tutorial! Particularly suitable for beginners!

在做项目（工程）的时候，我们经常要用到比较多的按键，而且IO 资源紧张， 于是我们就想方设法地在别的模块中节省IO 口，好不容易挤出一两个IO 口，却 发现仍然不够用，实在没办法了就添加一个IC 来扫键。一个IC 虽然价格不高， 但对于大批量生产而且产品利润低的厂家来说，这是一笔不菲的开支! 那，我们能不能想到比较好的扫键方法：用最少的IO 口，扫最多的键？可以吗？-Doing the project (engineering), we often use the relatively large number of keys, and the IO resource constraints, so we are trying to save in another module IO ports, finally out of one or two IO ports, only to find is still not enough there is really no other way to add an IC to sweep on the keys. Although the price of an IC is not high, but low profits, high-volume production and product manufacturers, this is spending a lot of money! That, we can not think of a better scan key method: with a minimum of IO ports, scan Most of the keys? OK?