这是一个用单片机来演奏音乐的程序，很通俗易懂，里面有源程序和HEX烧录文件...

M16Uart 实验现象: 通过超级终端或者是串口调试助手向单片机发送数据,以*开始#结束 单片机储存的是*#之间的数据, 发送R可将单片机最近一次记录的数 据传送给PC机,接收到新的数据,以前的数据将被清除, 数据长度在 255个字节以内-M16Uart experimental phenomena: The HyperTerminal or a single-chip serial debugging assistant to send data to* the beginning of# The end of single-chip storage is*# Between the data, send R may be the last single-chip record data transmitted to the PC, to receive new data, previous data will be cleared, the data length of 255 bytes or less

pcb设计集锦，内涵一些重要的有关protel99se布板的经验-Collection pcb design, meaning a number of important experiences related to protel99se layout

温度传感器LM34使用说明手册，英文版。-LM34 temperature sensor using the instruction manual and English.

用AT89S51单片机制作的一个带通讯的数字电压表，内含电路原理图及汇编源程序代码，以及数张图片，还有论文和设计感想。倾力奉送！-AT89S51 produced using a single-chip communications with digital voltage meter, including the circuit schematic and the compilation of source code, as well as a few pictures, there are papers and design thoughts. Effort away!

MSP430系列汇编指令集,作为编程时或初学时使用-MSP430 instruction set compilation series, as a beginner programmer or the use of

一种基于新型时钟芯片的时钟设计方法.时间稳定准确.-a new clock on the clock chip design method. Time is stable and accurate.

个人做的电子钟，有32个闹钟,可以在一个星期内任一天响铃-Individuals to do the electronic bell, there are 32 alarm clock can be within a week any day ringing

单片机51系列的122*32的某液晶驱动程序-MCU Series 122 51* 32 in a LCD driver

以数字形式显示时、分、秒时间，十位、个位备用一个数码管显示，分秒为一个60进制计数器，小时为一个“十二翻一”计数器 扩展功能：闹钟、仿电子钟报时、触摸报整点时数和自动报整点时数-clock

C8051F020串口通信例程-C8051F020 serial communication routines