UART

通过小键盘的输入来控制输出的演示 设计要求：按下“A”键时，在七段数码管各位上循环显示“8”；按下“B”键时，在发光二极管上绿色、黄色、红色灯管依次循环定时点亮；按下“C”键时，退出，在七段数码管上显示“P”。 (Through the keyboard input to control the output of the demonstration)

ds1302例程，本例程来源网络，本人验证通过，特此上传供大家学习交流(ds1302 routine, the routine source network, I verify hereby uploaded for everyone to learn exchange)

The performance of controlled complex dynamic systems inevitably suffers from various disturbances and uncertainties. Moreover, different faults (sensor and actuator faults for example) can occur. Sliding mode based observers have shown high performance for states and parameter estimation robustness with regards to measurement noise even in the presence of unknown inputs. The aim of this Special Issue is to summarize and provide the recent advances in sliding mode based disturbance and parameter estimation, faults detection (DPEFD) and their attenuation. The proposed Special Issue will facilitate faster uptake of advanced sliding mode based DPEFD technologies, as well as address new challenges arising from upcoming complex control systems, and generate new theories and methodologies.

说明：  巡线小车 基于pid算法 光电传感器 可以平稳运行 含有led屏(line follower with pid control)

1000以内所有的完数，比较简单，用于学习和交流(1000 all finished within few, relatively simple, for learning and communication)

基于STM32F103的智能充电器，PID调节恒压恒流输出，具有温度补偿，过欠压，过欠流保护功能，可直接用于开发。注释比较详细。(STM32F103-based smart charger, PID regulation constant voltage constant current output, with temperature compensation, over-voltage, over-current protection owed can be directly used for development. More detailed notes.)

MPU6050传感器的六轴姿态解算算法代码(Six-Axis Attitude Solution Algorithmic Code for MPU6050 Sensor)

此程序用于adina粘塑性材料的二次开发，仅仅针对二维。( This procedure is used for the two development of ADINA viscoplastic materials, only for two-dimensional. )

简单的微机保护仿真程序，热切希望可以有一个交流的平台，可以学习(Simple microcomputer protection simulation program)

Thrown by the virtual machine when an abstract method is called.