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单片机音频通信9170和9200，接收发送源程序(9170 and 9200 microcontroller audio communication, the receiver sends source)

c8051f020单片机的12864液晶显示 4行汉字 很简单的改变(c8051f020 microcontroller 12864 LCD 4 lines of Chinese characters is very simple change)

Code to fade colors in controls

辅助数字电路课程学习，说明TTL电路中驱动电流之间的 关系。 (auxiliary digital circuit courses on TTL circuit-drive current relationship.)

AD0809的功能启动，描述了如何启动AD0809的数模转换功能，并且在旁边加油注释(The AD0809 s function is activated, and describes how to start the AD0809 digital to analog conversion function, and next to the fuel comment)

使用DataAdapter对数据库进行操作 将SQL-search.aspx程序可改为使用DataAdapter对数据库进行操作. 程序使用"Dim objAdapt As New OleDbDataAdapter(strcmd,objCon)"创建了DataAdapter对象。(Use DataAdapter to operate the database The SQL-search.aspx program can be changed using the DataAdapter to operate the database. The program uses "Dim objAdapt As New OleDbDataAdapter (strcmd, objCon)" Creating a DataAdapter object. )

Arduino单片机开发笔记2-7,希望大家都看看(Arduino microcontroller development notes 2-7, we want everyone to see)

lax-wendroff求前台阶超声速流动(lax-wendroff format)

这是基于单片机的计算器程序，可以实现加减乘除的功能(This is based on single-chip calculator program, Math functions can be achieved)

能够快速读取电子海图，还有简单的显示功能(ENC )