经典的Carmack求平方根算法

51单片机最小系统用的C语言程序，里面有数码管显示，按键扫描，及一个时钟程序等，以供初学者入门用。(51 single-chip system with the smallest C-language program, which has a digital display, keypad scanning, and a clock procedures for entry to use for beginners.)

MPU6050寄存器介绍和地址地图，方便查询。(MPU6050 register and address map, easy to query.)

基于STM32F103系列单片机读取RC522序列号 (RC522 read the serial number on STM32F103 MCU)

说明：  本系统采用下位机负责模拟数据的采集,从51单片机负责采集数据，并应答主机发送的命令，上位机即主机是负责处理接受过来的数字量的处理及显示，主机和从机之间用RS-485进行通信。这样用户可以在上位机上编写各种程序对文件中的数据进行有效查询和分析,有利于工业过程的长期正常运行和检查。该系统采用的是STC89C52单片机，此芯片功能比较强大，能够满足设计要求。(In this system, the lower computer is responsible for the acquisition of analog data, and the 51 single chip microcomputer is responsible for collecting data and answering the commands sent by the host computer. The host computer is responsible for processing and displaying the received digital quantity. The communication between the host computer and the slave computer uses RS-485. In this way, users can write various programs on the upper computer to effectively query and analyze the data in the file, which is conducive to the long-term normal operation and inspection of industrial processes. The system uses STC89C52 single chip microcomputer, which is powerful and can meet the design requirements.)

说明：  基于OLED STM32F103 SPI基本驱动程序(Based on OLED STM32F103 SPI basic driver)

说明：  在stm32f103上面显示曲线或者图像。可以自定义显示字符，汉子。以及显示自定义图片或者打点显示波形等等。(Display curves or images on stm32f103. You can customize the display characters, man. And display custom pictures or dot display waveforms and so on.)

单片机C语言,DDS芯片AD9954的驱动代码(Singlechip C language, DDS chip AD9954 driver code)

单片机自学手册，内容很全面且使用，感兴趣的可以下来看看(SCM self-study manual, which is very comprehensive and uses, interested can look down)

说明：  内涵舵机控制的库历程等文件，分类细腻，有条理性，注释清晰(The documents, such as the history of servo control, are classified delicately, organized and annotated clearly.)

关于单片机的数码管的控制和显示，有许多的附加功能方便，简单(About the digital pipe of the single chip microcomputer control and display, there are many additional functions is convenient, simple )