Ultrasonic

利用AT89C51单片机做的一个音乐卡,可以播放多首歌曲(AT89C51 single-chip microcomputer use to do a music card, can play more songs)

实现小波算法，FFT以及滤波器,以及许多数学计算常用函数(this file complete wave,fft,filter and math function)

两路光电开关驱动，2019电赛A组，测试程序(Two-way Photoelectric Switch Drive, Group A of 2019 Electricity Competition, Test Procedure)

单片机开发与概述（7---9）希望大家喜欢(Single-chip development and overview (7--- 9) hope you like)

按键控制，检测独立按键，单片机读取状态口，控制相应的LED灯(Key control, testing the independent button, the microcontroller reads the status port and control the corresponding LED lights)

说明：  NUAA微机实验课设：1.密码确认。2.数据采集控制系统。3.数码管显示(NUAA Computer Lab located: a password confirmation. 2 Data acquisition and control system. 3 digital display)

Manchester encoding using RS232 for pic microcontrollers, examples in C - tutorial

利用51单片机结合超声波模块，编写的测距触发系统，程序可移植性好，具有人机界面，选用市售4脚传感器结合51机就可模拟，硬件简单。(The obstacle detection unit 51)

动力电池保护板程序,包括主程序，IIC,定时器，ADC(Power battery protection board procedures, including the main program, IIC, timer, ADC)

使用STC51所带的红外接收模块实现红外功能，并且在1602上面有一个简单的交互。(The infrared function is implemented using the infrared receiver module of the STC51, and there is a simple interaction on the 1602.)