用LCD1602来显示日期和时间，源码程序

超声波测距的源代码，已以SPCE61上调试通过。-Ultrasonic Distance Measurement of source code, has been adopted SPCE61 debugging.

ds12c87读写程序，经过测试是可以用的。-ds12c87 literacy procedures, the test can be used.

本系统采用MSC-51系列单片机ATSC51和可编程并行I/O接口芯片8255A为中心器件来设计交通灯控制器，实现了能根据实际车流量通过8051芯片的P1口设置红、绿灯燃亮时间的功能；红绿灯循环点亮，倒计时剩5秒时黄灯闪烁警示（交通灯信号通过PA口输出，显示时间直接通过8255的PC口输出至双位数码管）；车辆闯红灯报警；绿灯时间可检测车流量并可通过双位数码管显示。本系统实用性强、操作简单、扩展功能强。 -The system uses MSC-51 series single-chip ATSC51 and programmable parallel I/O interface chip 8255A-centric device designed to control traffic lights, can be achieved in accordance with the actual traffic flow through the P1 port 8051 chip set red, green fuel Liang function of time traffic light cycle, the countdown five seconds left when the yellow light flashing warning (traffic lights through the PA output signal indicates the time directly through the PC port output 8255 to double-digits) vehicle alarm闯红灯 green time traffic flow can be detected through a double-digital display. The system practical, simple and strong extensions.

单片机最小系统，使用液晶显示，能够读取键盘值，具有综合扩展功能-The smallest single-chip system, the use of liquid crystal display, the keyboard can read the value of a comprehensive expansion of functions

红外遥控解码程序，清大家试试看，很容易看懂-Infrared remote control decoding process, money you give it a try, it is easy to understand

P T 2 2 5 8 详 细 英 文 资 料-PT 2 2 5 8 detailed information in English

89C51WD和HC595仿真的例子、Proteus、原理图-89C51WD and HC595 simulation examples, Proteus, schematic diagram

use for connection to enternet

大学毕业设计作品：出租车计价器的设计：以AT89S52单片机为中心，通过金属传感器来测距，实现对出租车的计价统计。结合语音芯片ISD4004，时钟芯片DS1302，功放模块LM386N组成语音时间控制系统，最后通过液晶显示模块LCD12864显示单价、路程、总价、时间等。本系统可以实现单价、起步价、白天价、夜间价的显示和时间的修改。AT89S52通过P0口与外部语音报价电路相连，可以实现语音报价功能。-Graduated from college design work: the design of a taxi meter: The AT89S52 microcontroller as the center, ranging through the metal sensor to achieve statistical valuation of the taxi. Combination of voice chip ISD4004, clock chip DS1302, composed of voice amplifier module LM386N-time control system, the final adoption of liquid crystal display module LCD12864 show unit price, distance, total price and time. This system can achieve unit price, starting at daytime price, prices shown at night and the time changes. AT89S52 through the P0 port with an external circuit connected to voice offer, you can offer voice functionality.

MSP430模拟串口程序，希望对大家学习430单片机有用... ... ... ...!-MSP430 analog serial procedures, and they hope to learn from U.S. 430 Singlechip useful ... ... ... ...!