利用单片机的定时器定时，令十字路口的红绿灯交替点亮和熄灭，实现主支路路口的交通信号灯控制（尽可能保持主线的畅通，即在通常情况下，保持主线的放行，只有在支线到达时...

8*8点阵led显示功能介绍，包括点阵构成的原理，显示一竖柱，显示一横柱-8* 8 dot matrix led display, including the principle of dot-matrix composition, show一竖column, showing a horizontal column

C51读写fm1702sl SPI接口的读写程序 IO口模拟SPI接口-C51 to read and write fm1702sl SPI interface to read and write procedures for analog IO port SPI interface

单片机用T1中断在IO口P1.0输出乐曲(在P1.0口与VCC间接一喇叭即可听到) 1.由于输出的是方波，比较难听:-)你也可以将波形细分用DA输出正弦波 2.由于T1频繁中断，任何其他中断发生都会是乐曲打顿，只适合试验 3.优化音符编码：一个字节中包含节拍、音符、升降调，可区分数据和命令 -Single-chip microcomputer used in the IO port T1 interrupt output music P1.0 (P1.0 port with VCC in the indirect one can hear the speaker) 1. As the output is a square wave, more bluntly :-) You can also fine-waveform DA output sine wave with sub-2. Due to the frequent interruption of T1, any other interruption occurs Dayton will be playing music, is only suitable for test 3. optimized coding notes: A byte contains rhythms, notes, take-off and landing tune can distinguish between data and command

DDS集成芯片AD9851的应用，用键盘输入任意频率，液晶1602显示，由DDS输出正弦波-DDS chip AD9851 applications, using keyboard input at any frequency, liquid crystal display 1602, by the DDS output sine wave

这是控制变频器的西门子s7-200PLC程序-This is the control of Siemens frequency converter s7-200PLC procedures

jg1223f LCD显示器的资料和C驱动源码-jg1223f LCD display, and C-driven information source

实现lcd12864字符串和数字显示 包含lcd的初始化和清屏等功能-实现lcd12864 ???

一个在89c52单片机上实现的多路温度采集通信程序-A 89c52 single-chip to achieve the multi-channel temperature acquisition Communication Program

此源码利用单片机模拟实现IIC总线通信，可以连接基于I2C的硬件调试 -use of this source SCM simulation IIC bus communication, based on the I2C can be connected to the hardware debugging

文件中包括：串口通讯程序，以及两个单片机通过串口通讯的程序。-Document include: serial port communication program, as well as two single-chip serial communication through the process.