SD卡的简单介绍，包括SD卡的分类，协议，脚位定义等。

如何使用USB总线接口在单片机系统中实现一个虚拟串口的原理和实现过程。在设计中，软件部分采用USB的CDC类标准来实现虚拟串口，这样可以使用操作系统（Windows,Linux）自带的驱动程序；在硬件设计中，使用自带USB从设备接口的AT89C5131单片机，提高了系统的集成度和可靠性-How to use the USB bus interface in single-chip realization of a virtual serial port system, the principle and implementation process. In the design, the software part of the adoption of USB-CDC class standards to achieve a virtual serial port, so you can use the operating system (Windows, Linux) comes with the driver in hardware design, the use of own USB interface from the device chip AT89C5131 machine, to improve the system integration and reliability of

可以获取计算机的基本网络设置等信息，用VC开发完成-Access to the computer s basic network settings and other information, developed by VC

8051 编写的源程序-8051 prepared by the source

各种款式液晶显示程序，包括1602、240180、st7920字库液晶、12232、240128、12864等多款液晶的显示例子，极具参考价值-Liquid crystal display a variety of styles procedures, including 1602,240180, st7920 LCD font, 12232,240128,12864 such as liquid crystal display several examples of great reference value

ARM7开发板的USB源程序，好东西咯。 -ARM7 development board

基于单片机的红外通信原理 及电路设计-Single-chip communication based on infrared principle and circuit design

该程序实现发送缓冲器0向接收缓冲器0发送数据的自测试模式，其中接收采用中断方式

单片机密码-24c01-12864-4x4按键扫描 初始密码是123456,按#确认 进入后,按*修改密码-Singlechip password-24c01-12864-4x4 keypad scan the initial password is 123456, by# Confirm enter, press* Change Password

由单片机控制的蜂鸣器，唱出猪之歌的音乐，用C语言编的程序。-SCM control buzzer singing Song of Pig C-language program

单片机应用程序集，含PIC elong 等-SCM application sets, as with PIC elong