Solenoid Valve and BLDC Fan Archive Notes螺线管阀门与 BLDC 风扇归档笔记

Starting Point起点

这组材料比较散。一边是螺线管阀门控制：STM32F103 工程、电磁阀驱动板、OLED、EC11 编码器、按键、ULN2003 / 步进驱动参考。另一边是单相 BLDC 静音风扇驱动板，目前主要留下 BOM 和 EDA 工程。它们都指向执行器、电机和驱动电路。

This material is scattered. One side is solenoid-valve control, with an STM32F103 project, an electromagnetic-valve driver board, OLED, EC11 encoder, keys, and ULN2003 / stepper-driver references. The other side is a single-phase BLDC quiet-fan driver board, where the available material is mainly a BOM and an EDA project. They all point toward actuators, motors, and driver circuits.

我先把它们留下来，因为这些小材料和热管理硬件的主线相邻：负载驱动、人机交互、小电机、简单执行器。以后回头看时，至少知道这些碎片分别落在哪个方向。

I kept them because they sit near the main thermal-hardware line: load driving, human interaction, small motors, and simple actuators. Later, it will be easier to see which direction each fragment belongs to.

Why Keep Them为什么保留

Actuator driving, OLED display, encoder input, and fan driving are common fragments in embedded hardware. Each one looks small alone. Together they form a useful set of control-board building blocks.

执行器驱动、OLED 显示、编码器输入、风扇驱动，这些都是嵌入式硬件里很常见的碎片。单个看起来不大，组合起来就是很多控制板的基本功。

现在缺的是运行记录。还需要实物照片、接线图、状态机、测试日志、故障处理、波形，或者至少一张清楚的运行截图。没有这些，页面只能先作为方向笔记。

The missing layer is runtime evidence: physical photos, wiring diagram, state machine, test logs, fault handling, waveform, or at least one clear running screenshot. Until then, this page works as a direction note.

What They Can Show For Now目前能说明什么

• The solenoid-valve directory has an STM32F103 control project, driver-board EDA files, and OLED / encoder / key-related material.
• ULN2003 and stepper expansion-board material can serve as references for low-side drive, coil loads, and simple actuator control.
• The BLDC quiet-fan board currently has a BOM and EDA project, so it is best kept as a direction clue.
• Vendor examples and tool packages are numerous, and they stay outside the public page.

• 螺线管阀门目录里有 STM32F103 控制工程、驱动板 EDA 文件、OLED / 编码器 / 按键相关资料。
• ULN2003 和步进扩展板资料可以作为低侧驱动、线圈负载和简单执行器控制的参考。
• BLDC 静音风扇板目前有 BOM 和 EDA 项目，适合先作为方向线索。
• Vendor examples 和工具包很多，暂时留在公开页面之外。

Files文件

The page currently provides files that help identify the direction:

页面现在提供这些能看出方向的文件：

• Solenoid main.c
• Solenoid valve control source
• Solenoid valve IOC configuration
• OLED module schematic
• EC11 encoder schematic
• ULN2003 datasheet
• BLDC quiet fan BOM
• BLDC quiet fan EasyEDA project

供应商示例包、可执行工具、完整工程目录、构建输出和重复资料包暂时不放。这里留的是能看出方向的文件。

Records Still Missing还要补的记录

• Add a state diagram for the solenoid valve: open, close, hold, fault, and manual input.
• Add a redrawn wiring diagram for the actuator drive, showing MCU, driver chip, load, and protection positions.
• Add one running screenshot or physical photo for the OLED / encoder interaction.
• For the BLDC fan board, later add target voltage, topology, noise target, and bring-up record.

• 给螺线管阀门补一张状态图：打开、关闭、保持、故障、手动输入。
• 给执行器驱动补一张重画接线图，说明 MCU、驱动芯片、负载和保护位置。
• 给 OLED / 编码器交互补一张运行截图或实物照片。
• BLDC 风扇板后续需要补目标电压、拓扑、噪声目标和 bring-up 记录。

Looking Back Now现在回头看

This kind of material is easy to overlook because it is small. Keeping it as a direction note is more useful than forcing it into a finished case. Once photos, wiring, and runtime records are added, the actuator and fan-drive branch can become a fuller page.

这类材料很容易因为小而被忽略。现在先把它放成方向笔记，比硬凑成完整项目更合适。以后照片、接线和运行记录补齐，执行器和风扇驱动这条支线就能写得更完整。