99的计数器，使用AVR128单片机制作，从0开始记数到99自动清0，用数码管显示...

430 开发板原理图，实用简单适合初学者，适用于多种型号430-430 development board schematics, a simple utility for beginners, is fit for various models of 430

按键控制步进电机正反转，此为电子显微镜载物台三维控制设计-Stepper motor control key positive

单片机通过SPI读写SD卡.使用5v系统操作3.3V的sd卡.很有借鉴价值-SCM SPI literacy through SD cards. 5v use of the system 3.3V sd card. Very valuable reference

单链表的基本操作和栈的运算，平衡二叉树的生成为题目的数据结构课程设计。有详细的文字说明和源代码。-Single list of the basic operations and stack operations, balanced binary tree data structures of Health to become the subject curriculum design. A detailed written instructions and source code.

UCOS2在51上的移植源码。学习UCOS-UCOS2 51 on the transplant source. Learning UCOS

2005年电子设计竞赛F题恒流源电路源程序,现奉献出来给大家学习.-Electronic Design Competition in 2005 constant current source circuit title F source, is dedicated to the U.S. to learn from.

日历时钟12887源程序，很简单但很实用，是一个很好的参考例子。-12,887 calendar clock source, which is very simple but very useful, is a good example.

用51单片机写的电子钟程序，完全可用,但效率还不是很好-Single-chip with 51 minutes to write an electronic process, completely available, but efficiency is not very good

C8051F120单片机TCP协议栈,主体眶架,从美国人LIB库中导出-C8051F120 single-chip TCP protocol stack, the main orbital plane, from the American Library LIB Export

nokia5110 lcd 的 keil C51 驱动程序，支持英文和汉字的显示-nokia5110 lcd the keil C51 driver, in English and Chinese support for the show