记录切换次数，并通过数码管显示记录到的次数

凌阳公司61板子的电路图，供大家一起学习-Sunplus Company 61 of the circuit board for everyone to learn

飞思卡尔智能车 开环设计 大家不妨借鉴一下。-Freescale open-loop design of the smart car you may wish to learn from you.

本文介绍了AT89C2051单片机的性能和特点，并在分析了超声波测距原理的基本系统框图。该设计系统经校正后，其测量精度可达0.1米-This paper introduces the AT89C2051 performance and features, and the analysis of the ultrasonic distance measurement principle diagram of the basic system. The design of the system calibration, measurement accuracy of 0.1 meters

频率计的设计,单片机初学者必须程序,适用于proteus-Frequency of the design, single-chip microcomputer program for beginners to be applicable to proteus

nRF2401快速开发系统相关的帮助文档。-nRF2401 rapid development of systems related to the help document.

上位机采用vb编程,实现与多台s7200的自由口通信.-Host computer using vb programming, with more than the freedom of the mouth communication s7200.

MSP430F21x1 Architecture Summary

详细讲述10种经典的软件滤波算法，很通用。适合初学者。-A detailed account of the 10 kinds of classic software filtering algorithm, it is common. Suitable for beginners.

这是一个用128*64液晶显示的俄罗斯方块游戏，代码独特，用的是52单片机。-This is a 128* 64 LCD display Tetris games, unique code, using a single-chip microcomputer 52.

模拟I2C总线接口，实现I2C器件的发送和接受数据-Simulation of I2C bus interface, the realization of I2C devices send and receive data