基于AT89S51单片机和步进电机的国旗升降系统，带语音录放功能。汇编语言编写。...

系统按键显示都具有,不同的I/O口,具有很大的参考价值-System button shows have different I/O port, and it is very useful

4x5的键盘扫描,一个实用的单片机键盘程序-4x5 keyboard scanning, a practical single-chip microcomputer keyboard procedures

3208点陈式显示电子时钟，有兴趣的朋友可以DIY，同时也可以提供代码参考。-Chan 3208 point display electronic clock, interested friends can DIY, but also can provide reference code.

AVR_Meag16热敏电阻NTC测温程序，采用液晶LCD12864显示，WINAVR（GCC）编译-NTC thermistor temperature measurement AVR_Meag16 procedures LCD12864 LCD display, WINAVR (GCC) compiler

STC12C5A60S2 具备一般51单片机不可企及的高性能，有片内ADDA，速度是一般51的8倍！-STC12C5A60S2 high speed,low price, with ADDA in chip!

时钟芯片H1380控制程序，实现单片机时钟功能-Clock Chip H1380 control procedures, to achieve single-chip clock function

Parameters Parameters

Proteus仿真实例，在Proteus下仿真中断，非常不错，值得下载。-Proteus simulation example, under the simulation in Proteus interruption, very good, it is worth downloading.

ACEXT1K30最小系统的原理图和成熟PCB版图，可以直接拿到PCB制作厂商制作。同时也提供了与你自己定义的系统的接口，方便你将ACEXT1K30直接嵌入到你的系统中，而不需要再做其他的工作了-ACEXT1K30 the schematic and PCB layout mature, can be submitted directly to the production of PCB manufacturers produced. Also provided with your own definition of the interface, you will facilitate ACEXT1K30 directly embedded into your system without the need to do the work of the other

舵机（四伏电机）的c编程，在avr单片机上使用，如atmega16等带pwm的单片机-Rudder (4 volts motor) c programming, the use of SCM avr, such as atmega16 MCU with PWM