Read 51 keys, and return the computer serial port debugging assistant

一个用于单片机仿真的好软件版。不需要花钱买仿真板，直接在电脑上用这个软件连接实物图就可以了。是电子设计的必备软件。里面还有教程！-A good simulation for the single-chip version of the software. The simulation does not need to spend money to buy plates, directly on your computer to use this software to connect the physical map on it. Electronic design is an essential software. There are tutorials there!

次文章是介绍ad9851应用的，文章详细介绍了9851的功能和与51单片机的接法，还有c程序.-Second article is to introduce the application of the AD9851, the article introduced in detail the functions and 9851 MCU with 51 connection, there are c procedures.

Can convert midi to rtttl

使用ATMEL的Mega8完成的一个摇棒显示玩具，显示部分使用的LED，利用眼睛的视觉暂留原理，摇动的时候显示出相关图形和文字。-ATMEL completed Mega8 use of a roll bar display toys, shows some use of the LED, use of visual suspense left eye principle, shaking time show related graphics and text.

用ATMEL AVR CPU开发MMC CARD 的MMC库-with ATMEL AVR CPU MMC MMC library CARD

80C52参考频率计程序，包含中断和定时器典型应用代码段-80C52 reference Cymometer procedures, including suspension and timer typical application code segment

单片机驱动LCD防手机菜单的一个源代码，有详细的解释说明！-Single-chip LCD driver, a anti-phone menu source code, have the detailed explanations!

ADI低成本心电监护模块（ECG module）设计-ADI low-cost ECG monitoring module (ECG module) design

EM4001,EM4100等系列只读ID卡读取程序源码-EM4001, EM4100 series of CD-ID card reader FOSS

模拟高频头的 驱动程序（搜台、换台等功能）-Simulation of high-frequency driver first (found Taiwan, for Taiwan, and other functions)