51单片机写得MODBUS协议程序，可以实现寄存器得读写等操作

avr单片机atmega8系列led显示测试程序，本程序为示例程序，适用于初学者 -avr microcontroller series led atmega8 testing procedures showed that the procedures for sample procedures applicable to beginners

初始化键盘的源码，转自网友，给初学者参考-The source code to initialize the keyboard, carried Netizen, a reference to the beginner

此程序为键盘接口芯片程序，适合与avr单片机上，已经修改调试过-procedure for the keyboard interface chip procedures, and appropriate avr microcontroller, has been amended over Debugging

51单片机驱动320*234彩显的源代码-51 Microprocessor 320* 234 Color source code

利用单片机、HD7279、键盘，实现计时器、倒计时器。-The use of single-chip, HD7279, keyboard, realize the timer countdown device.

用 pic16f873 做的 p87lpc764 的编程器，有图、源程序、还有 764 的编程说明。-pic16f873 do with the p87lpc764 the programmer, a map, the source, there are 764 programming note.

对家用电扇进行模拟控制，实现自然，正常；快中慢的转换，用8086实现和用直流电机进行模拟实现，附程序-Analog control of the home fans to achieve a natural, normal fast in the slow conversion, with the 8086 implementation and the use of DC motor to simulate to achieve, with a program

MSP430的开发实例子，包括各种实例，对于初学MSP430单片机的同志有十分大的帮助，值得一看-MSP430 development of examples of the child, including various examples, for beginners comrades MSP430 microcontroller has a very big help, worth a visit

无线传感网络结点数据采集，应用CC2420和Atmel的Atmega128L进行开发，环境为ICCAVR-Wireless sensor network node data collection, application CC2420, and Atmel" s Atmega128L for development on the environment, ICCAVR

在电子技术中，频率是最基本的参数之一，又与许多电参量的测量方案、测量结果都有十分密切的关系，因此频率的测量就显得更为重要。测量频率的方法有多种,其中电子计数器测量频率具有精度高、使用方便、测量迅速，以及便于实现测量过程自动化等优点，是频率测量的重要手段之一。在本次毕业设计中我们选择使用单片机来制作数字频率计，并在实际制作中采用了直接测频法。利用延时产生的时基门控信号来控制闸门，通过在单位时间内计数器记录下的脉冲个数计算出输入信号的频率，最终送入LCD中显示。这样制作出来的频率计不仅可以满足设计题目的参数要求，而且具有了单片机的稳定性和成熟性，且控制能力强，是一种低成本，高可靠的设计方案。-In electronic technology, the frequency is one of the most basic parameters, but also with a number of electrical parameters of the measurement program, the measurement results have a very close relationship between the frequency of measurement, therefore it is even more important. Measurement of the frequency of a number of means, electronic measurement of the frequency counter with high precision, easy to use, rapid measurement, and measurement is easy to realize the advantages of process automation is an important means of measuring the frequency of one. Graduates in this design we have chosen to make use of single-chip digital frequency meter, and used in the actual production of a direct