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...

利用单片机与18B20温度测试芯片，所测试的温度精度为0.0625，显示采用4位数码管静态显示。实验调试能够正确得到室内温度。-Using the monolithic integrated circuit and the 18B20 temperature test chip, the temperature precision which tests is 0.0625, demonstrated uses 4 nixietube static state demonstration.The experiment debugs can obtain the indoor temperature correctly.

profibus从站开发

利用8051完成读写紧凑型闪存卡文件系统的实现

16*16点阵LED测试代码，为个人编写，主要用来测试点阵屏的好坏。-16*16 LED DOT display test

简易电子琴的设计 一、 设计题目： 设计一简易电子琴，要求能够发出1、2、3、4、5、6、7等七个音符。 使用元件：AT89C51、LM324，喇叭，按键等 二、 设计目的 （1）能够对电子电路、电子元器件、印制电路板等方面的知识有进一步的认识，独立对其进行测试与检查。 （2）熟悉8051单片机的内部结构和功能，合理使用其内部寄存器，能够完成相关软件编程设计工作。 （3）为实现预期功能，能够对系统进行快速的调试，并能够对出现的功能故障进行分析，及时修改相关软硬件。 （4）对软件编程、排错调试、焊接技术、相关仪器设备的使用技能等方面得到较全面的锻炼和提高。-simple design of a flower, a design : a simple flower design, request, sent seven notes. Use Element : AT89C51, LM324, speakers, such as two keys, designed (a) to be able to electronic circuits, electronic components, such as printed circuit boards with the knowledge to further understanding of its independent testing and inspection. (2) familiar with the 8051"s internal structure and function and the rational use of its internal registers can be completed software programming design work. (3) To achieve the desired functionality, the system can quickly debugging, and the right to function failure analysis, the timely revision of the related hardware and software. (4) The right software programming, debugg

USB芯片CH375的库文件，使用库文件可以方便地开发有关USB的项目-USB chip CH375 library files, use the library file you can easily develop a project related to USB

点阵显示汉字程串口输出字符数据，P2口输出行扫描信号,P0_0输出595锁存信号-Dot-matrix display Chinese characters-way serial output data, P2 I scan signal output line, P0_0 latch 595 output signal

8051单片机矩阵键盘扫描程序（包括键盘的消抖和数码管的显示）-8051 keyboard matrix scanning process (including the elimination Buffeting keyboard and digital display control)

单片机C51串口中断接收和发送测试例程可以用来测试51单片机的中断接收 //和查询发送，另外我觉得发送没有必要用中断，因为程序的开销是一样的 -80C51 Serial interrupted receive and send test routines can be used to test 51 MCU interrupt reception// Send inquiries and, I also think that this is not necessary for discontinued because the process is the same as the overhead

基于盛群ht46r232单片机的C语言 液晶显示屏1602a的显示驱动程序 -Based on SCM ht46r232 Holtek C language 1602a LCD display driver