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交通信号灯控制，可以调红绿黄灯时间，有紧急模式和夜间模式( Traffic lights control, you can adjust the red and yellow light time, emergency mode and night mode)

C8051F410开发程序，包括串口程序，I/O程序(C8051F410 development process, including the serial program, I/O process)

说明：  一个PS2键盘单片机, 使用Philips的接口+8051,写的不错,非常值得学习.(a PS2 keyboard microcontroller, the use of the interface, Philips 8051, was a good, very worth learning.)

transfer file using sound card

89C51的pwm程序，很好的程序呢，我试过了，还是我的作业呢。通俗易懂，希望对你有帮助。(The 89 C51 PWM program, very good program? I tried, or my homework. Easy to understand, the hope is helpful to you. )

MCP4017 数字电位器 128档(MCP4017 digital potentiometer 128 gear)

PE4302正点原子minif103的驱动代码，串行模式，使用请将P/S口接到高电平（最好直接接到单片机3.3V输出口）(Driver code of minif103 of PE4302 punctual atom, serial mode, please connect P/S port to high level (preferably directly to MCU 3.3V output port))

此文件可以包含STM32f103的基本操作，包括PWM波的输出，I/O端口的初始化等(This file is for the micro-controller ---STM32F103)

内容：1、本程序用于测试4相步进电机常规驱动 2、需要用跳帽或者杜邦线把信号输出端和对应的步进电机信号输入端连接起来 3、速度不可以调节的过快，不然就没有力矩转动了 4、按s4（设置成独立按键模式）可以控制正反转 (Content: This program is used to test the four-phase stepper motor conventional drive 2, you need to jump the caps or the DuPont line signal output and the corresponding stepper motor signal input to connect, the speed can not be adjusted too fast. otherwise there is no torque rotation, set individual keys by s4 () can control the reversing)

DS18B20温度1602显示，51单片机使用，驱动代码，可用(1602 DS18B20 temperature display, 51 single use, driver code, available)