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用循环程序 画用星号* 组成的方框图，可以设置方框的边长大小(Block diagram with an asterisk* cyclic process consisting of paintings, you can set the size of the box side)

模拟键盘击键,比较不错的一个程序.做软件仿真的(Analog keyboard keystrokes, compare a good one. To do software simulation of)

温湿度串口检测程序，实现对数据的读取和检测(Temperature and Humidity Serial Port Detection Program for Data Reading and Detection)

说明：  手消毒器应用，已经用于产品。是先喷消毒液；再进行手烘干。非常好奥(Hand disinfection applications, has been used for products. Is to spray disinfectant further hand drying. Very good Austrian)

基于STM32F4的四轴航拍平台。以STM32F407为控制核心，四轴飞行器为载体，辅以云台的航拍系统。硬件上由飞控电路，电源管理，通信模块，动力系统，机架，云台伺服系统组成。算法上采用简洁稳定的四元数加互补滤波作为姿态解算算法，PID作为控制器，实现飞行，云台增稳等功能(Four axis aerial platform based on STM32F4. Taking STM32F407 as the control core, the four axis flying vehicle as the carrier, and the aerial camera system with ptz. The hardware is composed of flight control circuit, power management module, communication module, power system, frame and PTZ servo system. The algorithm uses a simple and stable four yuan number plus complementary filtering as the attitude calculation algorithm, and PID is used as a controller to achieve flight, PTZ stability, and other functions)

SD Specifications_Ver3.01

单片机内刻录程序，包含C语言和汇编语言两个版本。实现7455C5与单片机的串口通信，信息传输。(Microcontroller burning program, contains two versions of the C and assembly language. 7455C5 microcontroller serial communication, information transfer.)

电池保护板检测，检测电池的电压、电流和温度代码。 (Battery protection board testing, test the battery voltage, current and temperature code.)

PS2通信，用stm32单片机模拟键盘鼠标往电脑送数据。(PS2 communication with stm32 SCM simulation to send data to a computer keyboard and mouse.)

12864液晶显示图像与文字的C51程序(12864 LCD image and text C51 program)