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教程

IRF520 模块风扇转了就停?5V 栅压不足是元凶

Posted on May 14, 2026August 1, 2026 by MakerHub Helper
Cartoon of a red IRF520 MOSFET module between an Arduino Uno and a small DC fan that is slowing to a stop
14
May

风扇接 IRF520 模块转一会儿就停,直连电源却正常?问题不在风扇,而在 5V 栅压只能让这颗标准栅极 MOSFET 半开。本文讲清阈值电压的真正含义、5V 下约 1A 的诚实预算、续流二极管检查与加装,以及何时该改走继电器路线。

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教程

HX711 称重传感器电子秤:Arduino 接线与校准教程

Posted on May 12, 2026August 1, 2026 by MakerHub Helper
Illustration of a DIY weighing scale made from two round wooden plates, a silver bar load cell, a green HX711 module and an Arduino Uno weighing an apple
12
May

用 Arduino Uno、5kg 条形称重传感器和 HX711 放大模块做一台会读克数的电子秤。本教程讲透最容易翻车的安装环节——一端固定在底板、另一端固定在秤盘、垫片留出弯曲间隙——并附接线表、校准方法和完整代码。

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教程

继电器模块 Arduino 接线与安全指南

Posted on May 9, 2026August 1, 2026 by MakerHub Helper
Cartoon of a red relay module with blue screw terminals wired between an Arduino Uno and a 12V fan
09
May

继电器模块让 Arduino 的小信号安全开关独立电路。本文讲透 NO/COM/NC 端子、HIGH/LOW 触发跳线的反相陷阱、ESP32 3.3V 触发,以及为什么 240V 市电要按马来西亚法规交给持牌 wireman(注册电工)。

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教程

ESP32、ESP8266、Arduino Uno 怎么选?开发板实话对比

Posted on May 7, 2026August 1, 2026 by MakerHub Helper
Cartoon illustration of an Arduino Uno, a NodeMCU ESP8266 and an ESP32 DevKit board side by side
07
May

Arduino Uno、ESP8266 NodeMCU 和 ESP32 DevKit 到底该买哪块?一张规格表加真实客户案例讲清楚:Uno 适合离线 5V 项目,ESP8266 是预算 WiFi 之选,ESP32 是大多数 IoT 和 FYP 的全能默认——外加 3.3V 电平与供电的坑。

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教程

Arduino DS3231 数字时钟教程:三样零件自制桌面时钟

Posted on May 4, 2026August 1, 2026 by MakerHub Helper
Ilustrasi jam digital Arduino yang siap dipasang dengan modul DS3231 dan paparan LCD1602 di atas meja
04
May

三样零件、四根线:用 DS3231 实时时钟模块和 LCD1602 I2C 显示屏,做一个断电也不走丢时间的 Arduino 桌面数字时钟。

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教程

Arduino 自动浇花系统 DIY 教程(含代码)

Posted on May 2, 2026August 1, 2026 by MakerHub Helper
Illustration of an Arduino automatic plant watering system with soil moisture sensor, relay module and the small white submersible pump in a water tub
02
May

四个模块、免焊接:用 Arduino Uno 读取土壤湿度,由继电器控制 5V 水泵自动浇花,附完整代码、校准方法和安全超时设计。

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About
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Latest Posts
  • 01
    Aug
    TP4056 怎么用:安全给 18650 充电,再升压到 5V
  • 31
    Jul
    数字万用表怎么用(XL830L):电压、通断与电阻
  • 31
    Jul
    HC-SR04 超声波传感器 Arduino 教程:接线与代码
  • 31
    Jul
    Arduino 雨水感应自动晾衣架(学校项目完整教程)
  • 31
    Jul
    舵机 180° vs 270° vs 360° 区别:到底买哪一种?
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    At Makerhub Malaysia, our mission is to make your shopping experience for robotics and DIY electronics parts a breeze, whether you choose to shop online or visit our retail store. Discover a wide range of products for all your project needs and enjoy the excitement of our diverse selection. Visit us and unleash your creativity!

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