通过把音乐的节奏转变成字符以实现通过高低电平让蜂鸣器响-By the rhythm of the music into a character in order to achieve high-low so that buzzer sound

用DS18B20设计的数字温控仪，可调整输出PWM脉宽。有Protues仿真-With DS18B20 designed digital temperature controller, adjustable output PWM pulse width. There Protues Simulation

震动强度的测量 ad转换 八段数码管显示 51单片机-ad leddisplay

液晶显示模块1604测试源码。显示数字，使用汇编语言编写。-LCD Module 1604 test source. Figures show that is written in assembly language.

以C8051F020单片机做的多功能计数器，2008山东大学生电子大赛题目。可以实现频率、周期、时间间隔等测量，可以LCD显示、语音报告结果，并能测试温度、显示时间（DS1302）。-C8051F020 single chip microcomputer to do multi-function counter, 2008 e-Competition topic Shandong college students. Can achieve frequency, cycle, time interval measurement can be LCD display, voice report on the results, and test temperature, indicating the time (DS1302).

优点：中断中只做很少的事情，通常我是在接收中断中post一个信号量，触发别的任务读数据-Advantages: only a small interruption in the things I usually post in the receiving a signal interruption in the amount of time to trigger other mission data

6416led+ds1302+8951电子钟,完整源代码-6416led+ Ds1302+ 8951 email钟Chang, Tai-complete entire Tungsten measurements

MSC1210中文资料--内核兼容8051的MSC1210单片机，具有高性能ADC、片内存储器以及Flash编程应用等功能。实际应用系统往往需要进行高精度的测量，同时还必须进行实时快速控制，提高其开发效率。为此人们常采用高精度A/D芯片加带ISP开发功能的单片机系统来实现。德州仪器（TI）的MSC1210单片机解决了上述问题。它集成了一个增强型8051内核、高达33 MHz的时钟周期、8路24位高精度∑-△A/D转换器、Flash存储器等-MSC1210 Chinese data- 8051 MSC1210 microcontroller core compatible with high-performance ADC, on-chip Flash program memory and application functions. Practical applications often require high-precision measurements, but also the need for real-time fast control, to improve their development efficiency. To do this people often use high-precision A/D chip increases with ISP microcontroller system development function to achieve. Texas Instruments (TI) of the MSC1210 microcontroller to solve the above problems. It integrates an enhanced 8051 core, up to 33 MHz clock cycle, 8-channel 24-bit high-precision Σ-△ A/D converter, Flash memory, and so on ... ...

ah 209型通用读卡器驱动程序源码，ic卡，光电卡，隐形光电卡通用读卡器程序-ah 209-based driver-source general-purpose reader, ic card, photoelectric cards, stealth photoelectric reader program using cartoons

多路视频转一路输出源程序,以实现低成本多路视频服务器功能-multiple video source to output way, in order to achieve low-cost multi-channel video server