SPI_2543_uart

说明：  通过计算机25针并口读写SPI总线Flash存储器(25-pin through the computer parallel port read and write SPI bus Flash memory)

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)

使用读卡器实现了为个人化的IC卡数据读写(Achieved using the reader for personal IC card data read and write)

这是一款模拟modbus从机的程序，可以方便用户调试modbus程序，本程序完全免费。(This is a simulation of the modbus from machines, can facilitate users to debug the modbus program, this program is completely free. )

单片机常用芯片手册,非常实用,初学者适合(Commonly used single-chip chip manual, very practical, suitable for beginners)

音乐计算器，当输出分别为正负数时，用蜂鸣器响起两段不同的音乐。计算器可实现0~999范围内的加减与或比较功能，并支持连续运算。(Music calculator)

超声波模块的使用，包括和单片机通信 可以实现超声波测距(The use of ultrasonic modules, including communication can be achieved and the microcontroller Ultrasonic Ranging)

c8051f060中定时器设置的参考程序，用于定时器的设置(The timer is set to the C8051F060 reference procedures, used to set the timer)

nokia5110源码加仿真测试,初始化液晶，按键测试静态动态显示(nokia5110 source plus simulation test, initialize the LCD, keypad test static dynamic display)

基于AT89C51单片机的出租车计价器的程序设计(AT89C51 microcontroller Taximeter-based program design)