H5&CSS Basic
Chapter 1: Free HTTPS Certificate
Chapter 2: About The Column
Chapter 3: Visible Area of Browser
Chapter 4: Why ReactJs
Chapter 5: Prohibit mobile scaling
Chapter 6: EM in H5
Chapter 7: Space width in page
Chapter 8: H5 Special Characters
Chapter 9: H5 Restricting Input
Chapter 10: H5 Font
Chapter 11: nginx redirection configuration
Chapter 12: Text Indentation
Chapter 13: Flex Layout
Chapter 14: Gradient Borders
Chapter 15: Popular DOM Operations
Chapter 16: Media Query
Chapter 17: CSS Selectors
Chapter 18: CSS alternate lines color
Chapter 19: fetch
Chapter 20: JS Attributes Operation
Chapter 21: scroll div
Chapter 22: JS for Loop
Chapter 23: Prohibit Text Selection
Chapter 24: Precision Controled Float Output
Chapter 25: Ionic Full Screen
Chapter 26: SVG Circle
Chapter 27: SVG Ellipse
Chapter 28: SVG Arc
Chapter 29: SVG Elliptical Sector
Chapter 30: Using WebAssembly
Chapter 31: JS Checklist checkbox Operation
Chapter 32: SVG Bezier Curve
Chapter 33: Threejs Material
Chapter 34: Luminous Image Styles
Chapter 35: Web Animation Points
Chapter 36: CSS Gradient Fonts
Chapter 37: SVG Rectangle
Chapter 38: Development Ability for Remuneration
Chapter 39: Close Browser Default Style for Input
Chapter 40: Jet Tail Particle Animation
Chapter 41: Prohibit Desktop Browser Scaling JS
Chapter 42: Desktop Full Screen Web CSS
Chapter 43: Display images in self scaling aspect ratio div
Chapter 44: Bi-side Text Alignment Styles
Chapter 45: Single line ellipsis
Chapter 46: Multi-line ellipsis
Chapter 47: Font Transformation Styles
Chapter 48: Remove default style of a tag
Chapter 49: Chinese Characters: Full Width Space
Chapter 50: DIV lays on DIV
Chapter 51: Calculating 1rem Pixel Values in JS
Chapter 52: JS Operations of DOM Parent Nodes and Adjacent Nodes
Chapter 53: Absolute Coordinates of DOM Elements in JS
Chapter 54: ToolTips Div
Chapter 55: Height and Width in JS
Chapter 56: Nginx configuration for stream media
Chapter 57: Scroll Bar Style
Chapter 58: Popular Methods for JS Array Operations
Chapter 59: SVG Fill Style Definition
Chapter 60: SVG Stroke Style Definition
Chapter 61: SVG Drawing Lines
Chapter 62: CSS Background Images Splicing
Chapter 63: WebSocket
Chapter 64: JS Calculate DPI
Chapter 65: GIF Opacity or not
Chapter 66: Nginx solved CORS problem
Chapter 67: Look At JsonP before publish
Chapter 68: Center and Middle Content in Div
Chapter 69: CSS background image size keeping ratio
Chapter 70: CSS Frame Animation
Chapter 71: CSS Same Width Font Display
Chapter 72: Package

Music Production Relaxing
2024-08-24 3 2 1 Start
2024-08-25 Rock Music
2024-08-25 Jazz Music
2024-08-25 Samba Passionate Maraca Sand Hammer
2024-08-25 Rumba Emotional Rumba Conga Konka Drum
2024-08-26 Country Music
2024-08-26 Funk Music
2024-08-26 Cold Waves Music
2024-08-27 Bass, Characteristics of finger plucking bass strings
2024-08-27 Hammer
2024-08-28 Chorus Sound Effects Selection Instrument: voice part, sound effects
2024-09-04 Recently Music Creation Collection1

Foundation of Go Language
Preface: For Web Systems
Chapter 1: Data type basic
Chapter 2: Complex Data Type
Chapter 3: array
Chapter 4: map
Chapter 5: set
Chapter 6: Pointer
Chapter 7: if
Chapter 8: switch
Chapter 9: for
Chapter 10: Go-Lang without
Chapter 11: structure & function
Chapter 12: Mutex
Chapter 13: Default Value
Chapter 14: Date Time Type
Chapter 15: High Precision Computation
Chapter 16: Web Http Service
Chapter 17: Introduction to Searching Engine
Chapter 18: strings package
Chapter 19: websocket
Chapter 20: Database Connection
Chapter 21: Multithreading in Go-Lang
Chapter 22: Generate HTML with beego
Chapter 23: Deploy as Linux service
2024-10-12 Stop Writing Go Lang Column

C++ Foundation
Preface: Teacher Tan did not publish "Fundamentals of C++ Language"
Chapter 1: Prospects of C++ -- WebAssembly
Chapter 2: Prepare for Game Development
Chapter 3: Basic Data Types in C++14
Chapter 4: C++14 struct
Chapter 5: C++14 enum
Chapter 6: C++14 class & virtual function
Chapter 7: C++14 Call Constructor in Constructor
Chapter 8: C++14 Functions and L,R Value
Chapter 9: C++14 move operation
Chapter 10: C++14 [] and [] space in struct
Chapter 11: C++14 vector
Chapter 12: C++14 list
Chapter 13: C++14 deque
Chapter 14: C++14 queue
Chapter 15: C++14 map
Chapter 16: C++14 set
Chapter 17: C++14 pointer and new, delete
Chapter 18: C++14 smart pointer and reference counter*
Chapter 19: C++14 pthread*
Chapter 20: C++14 synchronized locker--mutex*
Chapter 21: C++14 if
Chapter 22: C++14 switch
Chapter 23: C++14 for and while, do...while
Chapter 24: C++ time and sleep*
Chapter 25: C++ High Precision Computation*
Chapter 26: C++ Web Service
Chapter 27: C++14 std::string*
Chapter 28: C++14 Chars Encoding
Chapter 29: Access Control only during compilation
Chapter 30: Remote Developing on CLion
Chapter 31: Advanced Level C++ Tech*
Chapter 32: Enhance Speed & Stability

STM32 Experiment & Note
STM32 Learning: (001) HAL Library LED Lighting
STM32 Learning: (002) HAL Library LCD Frame Animation
STM32 Learning: (003) HAL Library FFT Dynamic Spectrum
STM32 Learning: (004) HAL Library FFT Speed Up
STM32 Learning: (005) HAL Library Understanding DMA
STM32 Learning: (006) Watchdog Summary
STM32 Learning: (007) GPIO Usage Steps
STM32 Learning: (008) CubeIDE Implementation of USB Peripherals*
STM32 Learning: (009) Why C99
STM32 Learning: (010) Linux UDP
STM32 Learning: (011) Linux TCP
STM32 Learning: (012) Temperature Control of Arm
STM32 Learning: (013) OpenWrt cross-compilation
STM32 Learning: (014) Basic data type in C99
STM32 Learning: (015) C99 struct
STM32 Learning: (016) C99 enum
STM32 Learning: (017) C99 funciont and L-Value, R-Value
STM32 Learning: (018) C99 pointer*
STM32 Learning: (019) C99 With only value assignment*
STM32 Learning: (020) C99 array with space, pointer with no space
STM32 Learning: (021) C99 No template function
STM32 Learning: (022) POSIX pthread multi-threads mutex*
STM32 Learning: (023) POSIX pthread multi-threads programming*
STM32 Learning: (024) C99 if
STM32 Learning: (025) C99 switch
STM32 Learning: (026) C99 loop
STM32 Learning: (027) C99 time and wait*
STM32 Learning: (028) High-precision calculation with GMP*
STM32 Learning: (029) Web Service Lib*
STM32 Learning: (030) International Components for Unicode (ICU)*
STM32 Learning: (031) Performance of C is higher than C++, because...*
STM32 Learning: (032) C99 weak function
STM32 Learning: (033) MTU TCP SOCKET
STM32 Learning: (034) STM32 UART Continually Sending Data
STM32 Learning: (035) STM32 UART Continually Receiving Data
STM32 Learning: (036) STM32 How to redirect printf() to USART
STM32 Learning: (037) STM32 Normal and Circle
STM32 Learning: (038) STM32 UART clear transfer error flag
STM32 Learning: (039) STM32 UART Idle Callback
STM32 Learning: (040) STM32 UART, RS232 single TX line
STM32 Learning: (041) STM32 RS485 Differential signal communication
STM32 Learning: (042) STM32 HAL DMA Poll For Transfer
STM32 Learning: (043) STM32 enter low power comsuption mode
STM32 Learning: (044) STM32 Clear Flag of TCx in DMA IRQ
STM32 Learning: (045) STM32软件函数命名规范
STM32 Learning: (046) Deal with Idle in xxxCpltCallback
STM32 Learning: (047) C99 Built in macros
STM32 Learning: (048) isr enabled after calling ***_IT
STM32 Learning: (049) Procedure of starting STM32
STM32 Learning: (050) Load new firmware online
STM32 Learning: (051) SCB->VTOR
STM32 Learning: (052) STM32 Address space in programme
STM32 Learning: (053) STM32 Move program to other space
STM32 Learning: (054) STM32 Bootloader
STM32 Learning: (055) Keil中的下载算法
Raspberry Pi: 🍓(001) Close Swapfile
Raspberry Pi: 🍓(002) Format USB disk to ext4 with 1k blocks
Raspberry Pi: 🍓(003) Query Linux Version info and CPU info
Raspberry Pi: 🍓(004) Speed up latest version of Ubuntu
Raspberry Pi: 🍓(005) Clone 360 Browser Core Source Code Script
Raspberry Pi: 🍓(006) Before run Firefox in Ubuntu24.04
Raspberry Pi: 🍓(007) MAC Address
Raspberry Pi: 🍓(008) RMII & PHY
Raspberry Pi: 🍓(009) Ubuntu Server firewall configuration
Raspberry Pi: 🍓(010) Linux yield cpu by code
Raspberry Pi: 🍓(011) Linux Hardware Concept
Raspberry Pi: 🍓(012) Linux Inter-Process Communication
Raspberry Pi: 🍓(013) Ban Git force push
Raspberry Pi: 🍓(014) Ban Git reset --hard
Raspberry Pi: 🍓(015) Save unsaved cache to disk immedutely
Raspberry Pi: 🍓(016) 拷贝pre-receive到每个git仓库的脚本
Raspberry Pi: 🍓(017) sshd密码输入错误禁用IP3分钟
OpenWRT: 🖥️(001) 异机备份低功耗自用Git服务器搭建
OpenWRT: 🖥️(002) OpenWRT配置注意事项
Learning FreeRTOS: 🕹️(001) while(1){} will not yield cpu
Learning FreeRTOS: 🕹️(002) functions for multi-thread in FreeRTOS
Learning FreeRTOS: 🕹️(003) FreeRTOS critical code zone
Learning FreeRTOS: 🕹️(004) FreeRTOS fix NULL not defined error
Learning FreeRTOS: 🕹️(005) lowest priority interrupt of ARM: PENDSV
Learning FreeRTOS: 🕹️(006) Configuration of tasks priority levels
Learning FreeRTOS: 🕹️(006) Cautions of different priority tasks locked
Learning FreeRTOS: 🕹️(008) Close scheduling of same priority tasks
Learning FreeRTOS: 🕹️(009) OTA Technology
Learning FreeRTOS: 🕹️(010) FreeRTOS create static task
Learning FreeRTOS: 🕹️(011) FreeRTOS list task list
Learning FreeRTOS: 🕹️(012) FreeRTOS HeapSize statistics
Learning FreeRTOS: 🕹️(013) FreeRTOS xTaskGetHandle
Learning FreeRTOS: 🕹️(014) FreeRTOS common method of create tasks
Learning FreeRTOS: 🕹️(015) FreeRTOS fix problem of tasks locked
Learning FreeRTOS: 🕹️(016) FreeRTOS Superest interrupt: SVC
Learning FreeRTOS: 🕹️(017) FreeRTOS interrupt call in privilege mode
Learning FreeRTOS: 🕹️(018) FreeRTOS SVC enter user mode
Learning FreeRTOS: 🕹️(019) FreeRTOS delay util
Learning FreeRTOS: 🕹️(020) FreeRTOS low consumption by Tickless
Learning FreeRTOS: 🕹️(021) FreeRTOS IdleHook
Learning FreeRTOS: 🕹️(022) FreeRTOS Hooks
Learning FreeRTOS: 🕹️(023) FreeRTOS yield CPU by code
Learning FreeRTOS: 🕹️(024) FreeRTOS semaphore
Learning FreeRTOS: 🕹️(025) FreeRTOS resolve priority inversion
Learning FreeRTOS: 🕹️(026) FreeRTOS get task priority
Learning FreeRTOS: 🕹️(027) FreeRTOS set task priority
Learning FreeRTOS: 🕹️(028) FreeRTOS function prefix
Learning FreeRTOS: 🕹️(029) Don't call RTOS function in IRQ handle
Learning FreeRTOS: 🕹️(030) Bottom half operation decrease semaphore
Learning FreeRTOS: 🕹️(031) Support Suspending for ever
Learning FreeRTOS: 🕹️(032) Call FreeRTOS SysCall in ISR
Learning FreeRTOS: 🕹️(033) Principle of Top Half and bottom haf
Learning FreeRTOS: 🕹️(034) FATFS in STM32 support exFat
Learning FreeRTOS: 🕹️(035) Message Queue in FreeRTOS
Learning FreeRTOS: 🕹️(036) Timer Tasks in FreeRTOS
Learning FreeRTOS: 🕹️(037) Reason of can not ping board
Learning FreeRTOS: 🕹️(038) LwIP Tcp Server Sample Code
Learning FreeRTOS: 🕹️(039) don't use mutex
Learning FreeRTOS: 🕹️(040) Relationship between MEMP and Pbuf
Learning FreeRTOS: 🕹️(041) FreeRTOS连接ESP WiFi（待完成）

Common PCB Circuit Design
Chapter 1: Principal of PCB Design
Chapter 2: Calc of Voltage and Resistance
Chapter 3: 嘉立创下单助手下单免费
Chapter 4: 嘉立创智能尺寸
Chapter 5: 晶振匹配电容的大小确定
Chapter 6: 直流恒压RC串联电路充电应用
Chapter 7: 最小系统板电路
Chapter 8: STC电源并联稳压电容计算
Chapter 9: PHY电路绘制整理
Chapter 10: 晶振走线
Chapter 11: 我对UART、RS232、RS485的理解
Chapter 12: 持续学习硬件
Chapter 13: 阻抗不连续的匹配
Chapter 14: FMC走线原则
Chapter 15: 值得研究一辈子的电源电路

Android System
序： 学习计划
第一篇： 换个角度认识屏幕

Electrification
Chapter 1: Kirchhoff Voltage Law
Chapter 2: Kirchhoff Current Law
Chapter 3: Resistance Δ-Y Transferring Calcualte
Chapter 4: Resistance Y-Δ Transferring Calcualte
Chapter 5: Voltage Src Transfer to Current Src
Chapter 6: Mesh Hole Current Analysis
Chapter 7: Node Voltage Analysis
Chapter 8: Miller Theorem
Chapter 9: Superposition Theorem
Chapter 10: Substitution Theorem
Chapter 11: Thevenin Theorem
Chapter 12: Norton Theorem
Chapter 13: External power method
Chapter 14: Maximum Power Transmission Theorem
Chapter 15: Operational amplifier
Chapter 16: Differential input
Chapter 17: Actual operational amplifier input-output resistance
Chapter 18: Ideal Operational Amplifier
Chapter 19: Application of Ideal Operational Amplifier
Chapter 20: Capacitor
Chapter 21: Abbreviation
Chapter 22: Unit
Chapter 23: Inductance
Chapter 24: Complex number
Chapter 25: Complex number calculation
Chapter 26: Mathematical symbols Greek letters
Chapter 27: Important basis - Taylor series
Chapter 28: Important basis - Especial exponential function e^x
Chapter 29: 相量法即符号法
Chapter 30: 电感的等效电阻ESR
Chapter 31: 复阻抗的特性
Chapter 32: 复阻抗表达式

开放学习资源
超10万播放量：中国矿业大学电路理论
82.6万播放量：国一学长带你学立创EDA专业版
315.4万播放量：八个案例教程带你从0到1入门blender
71.7万播放量：【正点原子】手把手教你学FreeRTOS实时系统
32.6万播放量：ESP-IDF
3.2万播放量：硬件电路设计--从入门到精通
75.5万播放量：新手如何入门硬件 一本正经的电子电路入门

个人或非业务开发关键过程回顾
第一篇： basic认证服务🔒
第二篇： F103熊猫HAL库FFT🔒
第三篇： 蓝牙SPP+AD2P🔒*
第四篇： PCB🔒*
第五篇： 自己的兆易创新GD32F427ZGT6开发板开源LVGL🔑
第六篇： LVGL开源可商用框架🔒
第七篇： 最优LwIP实践方案🔒
第八篇： bootloader加载新系统🔒
第九篇： TX、RX两线UART长时间不需要时钟同步🔒
第十篇： 解开了《爱方C》😄——SDA、SCK两线多设备🔒
第十一篇： CLK、SIMO、MISO、SS4线SPI的HAL库及Flash操作🔒
第十二篇： HAL库定时器的使用🔒
第十三篇： HAL库函数名命名规范🔒
第十四篇： 个人常用开发工具问题及解决办法🔒
第十五篇： 使用heap_5🔒
第十六篇： MPU与RAM_D2的使用🔒
第十七篇： LwIP与FreeRTOS共存的RAM_D1内存分配方式🔒
第十八篇： .ld文件详解🔒
第十九篇： 使用SDRAM加速访问Flash中的常量大数组🔒
第二十篇： 综合使用内置Flash与外置Flash🔒
第二十一篇： 让vsnprintf支持%f输出浮点数字符串🔒
第二十二篇： 在FreeRTOS系统任意地方使用带%f号的printf🔒
第二十三篇： ARM开发常见问题🔒
第二十四篇： HAL库是否启用注册Callback🔒
第二十五篇： UART容错处理🔒
第二十六篇： 存储🔒
第二十七篇： 感谢国产磁通量计🔒
第二十八篇： 规避风险🔒
第二十九篇： 感谢中央还在
第三十篇： 用上了正式版I²C
第三十一篇： 从ChatGPT得到的获取CPU ID的方法🔒
第三十二篇： LVGL开发技巧🔒
第三十三篇： 硬件经验🔒
第三十四篇： 模块功能🔒
第三十五篇： FreeRTOS的任务栈内存分配🔒
第三十六篇： 与业务无关的USB开发步骤🔒
第三十七篇： 记住🔒
第三十八篇： UART时钟🔒
第三十九篇： FMC时钟🔒
第四十篇： LTDC时钟🔒
第四十一篇： QUADSPI时钟🔒
第四十二篇： SPI时钟🔒
第四十三篇： SDRAM不能读写，注意MPU的配置🔒
第四十四篇： 单片机调试要点🔒
第四十五篇： STM32CubeIDE写外置Flash注意事项🔒
第四十六篇： XIP模式中SDRAM需要重新初始化🔒
第四十七篇： Start Address🔒
第四十八篇： LTDC🔒
第四十九篇： LVGL集成🔒
第五十篇： QSPI MemoryMapped🔒
第五十一篇： STM32写入算法开发🔒*
第五十二篇： SDRAM比QSPI Flash的XIP更快🔒
第五十三篇： Cache与Buffer的区别🔒
第五十四篇： Bootloader时钟配置🔒
第五十五篇： 对于取值范围0~255的Clock Prescaler计算分频需要加1🔒
第五十六篇： 对于FMC的频率配置频率要乘以2🔒
第五十七篇： QSPI的GPIO Speed🔒
第五十八篇： GPIO引脚的Very High配置🔒
第五十九篇： 代码例子（网卡）🔒
第六十篇： 开发网卡需要驱动🔒
第六十一篇： USB CDC Echo🔒
第六十二篇： 启用Keil的自定义段空间分配🔒