LED

stm8系列单片机，控制八位数码管按键计数(stm8 series microcontrollers, digital control buttons eight counts)

FAT32文件系统移植到UC/OS中，实现对sd卡的操作(FAT32 file system migration to UC/OS, the realization of the operation of the sd card)

nokia5110源码加仿真测试,初始化液晶，按键测试静态动态显示(nokia5110 source plus simulation test, initialize the LCD, keypad test static dynamic display)

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. )

计算配电网络潮流 基于40节点计算配电网潮流电压及其电流 (Calculation of distribution network based on 40 tide node voltage and current power flow calculation)

基于 AVR 单片机的水温自动控制系统 摘要: 本系统以 ATMEGA16 单片机作为系统的检测和控制核心，采用温度传感器 AD590实现0—100℃温度范围内的实时温度采集，通过双向可控硅 BT136 控制电热杯对系统进行加热，利用继电器控制半导体制冷片对系统进行散热。通过一线键盘实现对任意温度值进行设定并对模糊 PID 参数的调整，液晶 LCD1602 实时更新显示当前温度测量值与键盘设定温度值。利用模糊 PID 算法，通过调功法对水温系统进行控制,实现在 0—100℃范围内任意设定温度值，静态误差小于±0.5℃。 关键词： AVR 单片机 水温自动控制 模糊 PID 算法 (AVR Microcontroller Based Temperature Control System Abstract: This system ATMEGA16 microcontroller as the core monitoring and control system using the temperature sensor AD590 0-100 ℃ temperature range to achieve real-time temperature acquisition, through triac BT136 control system for electric heating cup, using relay control system for semiconductor cooling heat tablet. Achieved through the keyboard line value for any temperature setting and adjustment of fuzzy PID parameters, real-time updates LCD1602 LCD displays the current temperature measurements and the keyboard set temperature. Fuzzy PID algorithm, the system transfer function method of temperature control, to achieve the 0-100 ℃ adjustable set temperature, the static error is less than ± 0.5 ℃. Keywords: AVR microcontroller water temperature control fuzzy PID algorithm )

运用单片机实现烟雾、煤气报警和短路自检，主要用到ADC0809，AT89S51等。本项目最终做成实物，并能良好实现功能。有protel原理图，PCB布线图，完整的论文中有详细程序介绍。(Application of single chip microcomputer gas alarm and smoke, short circuit self-checking, mainly used in ADC0809, AT89S51 etc..This project eventually made real, and can well realize the function.Protel PCB schematic diagram, wiring diagram, the complete paper.)

stm32输出四路pwm，能完成占空比可调，频率可变化的pwm(Stm32 four road PWM output, can finish the duty ratio is adjustable, can change the PWM frequency)

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)

单片机系统原理图 拥有各种功能 基本上能满足学生单片机学习开发应用(mcu perfect)