UART

编写程序，通过8255 单元控制点阵的扫描显示，使8×8LED 点阵到小循环显示号 “□”(Programming, through the 8255 unit control the scanning dot matrix display, the 8 × 8LED dot matrix display number to small cycles " □" )

PIC18F通用urat串口的初始化及寄存器的设置(PIC18F serial port initialization and the setting)

DIYMP3，能智能播放，很好的运用了STM32系统相关知识，花费了我将近半年的努力，基本上包含了STM32所有功能的应用。(DIYMP3, play to intelligence, very good use of the STM32 system related knowledge, it took me about half effort, basically contains all STM32 function application.)

说明：  奇迹自动捡物按键精灵源码 可自动挂机，捡物文本源码(Miracle Source Wizard button automatically picking up objects)

充电盒程序 用pic16F1828做主芯片(charger box program)

上位机发送数据包，下位机实现简单数据接，然后可以存储到其他位置(PC to send data packets, lower machine simple data connection, which can then be stored in a different location)

Central Empire dedicated source

此程序为毕业设计之防火防盗报警器具有MQ2烟雾报警，DS18B20温度报警，红外传感器感应人体红外，超声波感应人得进入，加上1602液晶显示等功能，同时具有蜂鸣器及LED报警(This procedure for the graduation of the fire alarm system design has MQ2 smoke alarm, DS18B20 temperature alarm, human infrared sensor infrared sensor, ultrasonic sensor people allowed to enter, plus 1602 LCD function, but also has a buzzer and LED alarm)

通过RS485端口不停地发送数据0xaa用示波器观察RS485端口A、B信号线上的波形或者用RS485接收器接收发送的字符。(Through the RS485 port to send data continuously 0xaa observed with an oscilloscope RS485 ports A, B signal waveforms or use the RS485 line receiver sends characters.)

基于stm32的定时器中断应用，可产生相位差为90度的两路周期性脉冲，可用于模拟正交编码器脉冲(Stm32 timer interrupt based applications can generate a phase difference of 90 degrees two periodic pulse, can be used for analog quadrature encoder pulse)