简易数字电压表可以测量0-5V范围的8路电压值，并在4位LED数码管上轮流显示或单路选择显示。-Simple digital voltage meter can measure the range of 0-5V Voltage road 8, and 4 digital tube LED display on a rotational basis or choose to display a single road.

单片机C51控制，实时时钟程序，单片机掉电后重新启动仍能准确显示时间-C51 single-chip control, real-time clock procedures, single-chip power-down after the restart time can accurately show

程控直流数控电源，在keil环境下编写的，使用STC系列单片机实现的简易数控电源，具有掉电保存数据等功能。-NC program-controlled DC power supply, the environment in the keil prepared, using a simple STC series single-chip microcomputer numerical control power supply, with power-down functions to save data.

C51 ATAPI-CDROM 驱动程序-C51 ATAPI-CDROM driver

6122红外编码 应用nop进行延时，实现6122编码。-6122 IR CODE

单片机计算器,可计算多位小数点的+-*/.可在lcd上显示-Single-chip calculator, calculate the number of decimal 2B !-*/. in lcd display

93CXX的驱动程序-93CXX driver

打印、液晶、键盘、通讯 完整程序范例（c51）-Print, LCD, keyboard and communication procedures example of integrity (c51)

led显示屏幕中文移动广告显示牌，可用于车辆报站等；-led display screen in Chinese mobile advertising signs can be used to stop vehicles, etc.

64*16点阵，内有proteus仿真，芯片资料，protel原理图，pcb图。-64* 16 lattice, which has Proteus simulation, chip information, protel schematic, pcb Fig.