用C51I/O口来驱动两个四位数码管，并且可消隐，降低功耗。

玩具小车，设计，AT85c52,c语言设计，无线控制-toy car, design, AT85c52, c language design, wireless control

51单片机学习原代码经验丰富工程师编写实际运行通过-51 Single-chip learning the original source of experienced engineers to run through the preparation of the actual

This a program which performs addition,subtraction,multiplication and division of two 4 bit binary numbers..therefore it is called as 4 bit binary ALU..if u have any doubt,then mail me at prem_bombay@yahoo.co.in -This is a program which performs addition,subtraction,multiplication and division of two 4 bit binary numbers..therefore it is called as 4 bit binary ALU..if u have any doubt,then mail me at prem_bombay@yahoo.co.in

51单片机浮点子程序库(大型),直接嵌入,方便使用.-51 single-chip floating-point subroutine library (large), direct embedding, user-friendly.

这个是单片机和电脑进行通信的单片机作为上位机向电脑发送数据-This is a single-chip and single-chip computer to communicate to the computer as a host computer to send data

内容： *红外测试程序，用单片机通过发射管发射38K的调制频率码，由一体化接收并解码由发光管显示。 *正常情况下，由于反射和高灵敏度接收，LED4（P1.3)一直闪烁，可以用黑色纸片完全遮挡接收头使 *之不能接收到发射管的信号，这是LED4熄灭。说明功能性正常 -Content:* IR test program, launched with the microcontroller through the launch tube of the modulation frequency of 38K code, by the integration to receive and decode from the LED display.* Under normal circumstances, due to reflection and high-sensitivity receiver, LED4 (P1.3) has been flickering, you can completely block the black pieces of paper to make* that they are not receiving the first emission control signal is received, it is LED4 out. Note the normal functional

使用键盘上的上、下、左、右四个按键，可以分别控制led1,2,3,4, 每个LED 对应的Port 请参考“实验平台介绍”说明文档。要求按下 上面提到的四个按键中间的一个按键后，该按键对应的led 被点亮，持续1 秒钟以后led 熄 灭。-Use the keyboard on the upper and lower, left, and right buttons, can control led1, 2,3,4, each LED corresponding to the Port, please refer to " experiment on" documentation. Requirements of the four above-mentioned press the middle button of a button, the button that corresponds to being light led, continuous 1 second later led out.

实现I2C终线的功能，24C64的I2C的总工会系啊-I2C to achieve the function of the end line, 24C64, Department of Trade Unions of the I2C ah

Tinyos flood algorithms in NesC

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