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教程

5V 风扇怎么选、怎么驱动:风扇模块、MOSFET 与继电器

Posted on September 1, 2026 by MakerHub Helper
Cartoon of a large black square brushless case fan with a red-and-black lead ending in a white two-pin plug, beside a red circuit board carrying a black chip, four silver pins, a small white motor and a red two-blade propeller, with a blue microcontroller board cropped small at the bottom right
01
Sep

5V 还是 12V、机箱风扇还是风扇模块,怎么挑;再用 MOSFET、L9110 或继电器把它开关起来——附 PWM 调速的陷阱、踢启动的做法,以及一个 DHT11 温控风扇的完整接线与程序。

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教程

面包板怎么用:看不见的孔位图、尺寸选择与新手错误

Posted on September 1, 2026 by MakerHub Helper
Kartun tiga breadboard putih bersusun mengikut saiz, papan besar dengan jalur merah dan biru yang putus di tengah, papan sederhana dengan jalur penuh, papan mini tanpa jalur, serta LED merah menyala dan wayar jumper
01
Sep

面包板里每一组五个孔其实是同一片金属。讲清塑料底下的孔位图、中间凹槽为什么留给 IC、170/400/830 该怎么选,以及最常把新手电路弄死的几个错误。

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教程

振动马达 vs 振动传感器:Arduino 该选哪一个?

Posted on August 31, 2026 by MakerHub Helper
Cartoon of two vibration modules on white - a square black board carrying a round black coin motor with orange waves radiating from it, beside an elongated blue board with a black cylindrical spring-switch tube, a blue trimmer and a small chip, struck by an orange impact mark - with the corner of a blue Arduino Uno cropped at the lower left
31
Aug

振动马达是输出,让作品自己抖起来;SW-18010P 振动传感器是输入,只察觉别的东西在抖。哪一个才是你要的、怎么用 PWM 驱动马达而不拖垮 Arduino、怎么读 DO 脚并把一次敲击算成一次事件,以及这两个零件都做不到的事。

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教程

电源开关怎么选:船型、拨动、自锁与开孔尺寸

Posted on August 31, 2026 by MakerHub Helper
Cartoon of three large panel switches side by side on white - a black rocker with a bright red paddle, a black bat toggle with a chrome lever and three screw lugs, and a round red-capped push button with a chrome hex nut - with a small grey project box cropped at the right edge
31
Aug

船型开关和拨动开关会停在你留下的位置,按键开关只在按住时才导通。这篇讲清楚自锁与点动的差别、开关为什么要串在供电正极上、2 脚 3 脚与 SPST/SPDT 的含义、面板开孔该切多大,以及机身上那行 6A 250V AC 该怎么读。

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教程

直流电源怎么选:5V 还是 12V、安培数与 5.5×2.1mm 圆头

Posted on August 30, 2026 by MakerHub Helper
Cartoon of a large glossy black UK three-pin plug-top power adapter whose black cable ends in a big silver-tipped barrel plug, a smaller silver perforated-steel cage power supply with guarded screw terminals beside it, and the cropped corner of a blue circuit board with a barrel socket on the right
30
Aug

直流电源上的安培数是上限,不是推力:5V 5A 电源喂 500mA 的项目完全安全。电压照负载定——5V 走 5V 轨,7–12V 进圆头插座,因为后面坐着一颗稳压器;5.5×2.1 与 5.5×2.5mm 的分别、USB 转圆头线什么时候够用,也一次讲清楚。

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教程

水位继电器控制器:不用单片机自动控制水泵

Posted on August 30, 2026 by MakerHub Helper
Cartoon of a small bucket on the left holding a submerged cream-white pump, a tube carrying its water across into a large clear tank of pale teal water where three probe wires hang free at different depths, and a blue water level relay controller board standing on the right
30
Aug

两支导电探针定出补水高度和停泵高度,XHM203W 的继电器直接切断水泵自己那一路电源——不用单片机,也不用写一行程序。含四个接线端对照表、探针该吊在哪里、探针故障往哪个方向失效,以及为什么它做不了排水。

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教程

AA 电池供电:1.2V 镍氢 vs 1.5V 碱性,板子到底收到几伏?

Posted on August 29, 2026 by MakerHub Helper
Cartoon of two AA batteries side by side, one in a plain lavender-purple wrapper and one in dark grey with a copper band, in front of a black four-slot AA battery holder with red and black wire leads
29
Aug

四颗 AA 不等于一个电压:碱性 6.0V、镍氢 4.8V。哪些零件在乎这个差距,什么时候需要升压模块,容量与自放电的真相,以及何时该换 18650。

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教程

Donut board 洞洞板怎么焊接连线:三种接法、地线排与布局

Posted on August 28, 2026 by MakerHub Helper
Cartoon of a large rectangular green donut board covered in a grid of silver ring pads with longer oval pads down both edges, carrying a black header strip, a beige resistor and a red LED, a chain of three silver solder blobs joining three adjacent pads, a red wire arcing across the board, a soldering iron tip entering from the right and a small white breadboard cropped at the top left
28
Aug

面包板电路要焊成永久版,第一步是搞懂洞洞板上什么都不连。三种接法、地线排怎么做、布局怎么排,以及最容易踩的坑。

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教程

超声波雾化片做 DIY 加湿器:干烧、供电与继电器控制

Posted on August 27, 2026 by MakerHub Helper
Cartoon of a large ultrasonic mist maker disc with a bright sky-blue ceramic ring and dark grey mesh centre set in a translucent white silicone gasket, red and black leads running to a small white two-pin plug, a white mist plume rising from its centre above a shallow bowl of pale teal water with a white cotton wick leaning up to touch it, and the small green driver board at the lower right
27
Aug

超声波雾化片的水既是雾源也是唯一的散热介质,干烧几秒就退极化报废。这篇从换能器和驱动板的分工讲起,说明为什么 0.4 A 不能从 Arduino 引脚出,怎么用继电器串进充电线里,以及水位传感器该摆在哪个高度。

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教程

Arduino 是什么?从零开始的新手入门指南

Posted on August 27, 2026 by MakerHub Helper
Kartun papan Arduino Uno biru bersambung ke breadboard putih dengan LED merah 5 mm menyala dan perintang biru, dikelilingi ikon kipas putih, mentol kuning, motor DC kelabu dan sensor biru muda
27
Aug

Arduino 是一块小小的电路板,上面的微控制器芯片只跑你写的那一个程序,通电就一遍又一遍重复。这篇从零讲清楚它能做什么、不能做什么,要不要先会写程序,入门套件里有什么,以及第一个星期该做的第一个项目。

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About
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Latest Posts
  • 11
    Sep
    3–5V 迷你潜水泵怎么选、怎么驱动:流量、扬程与三条开关路
  • 11
    Sep
    RBT 遥控小车专题(六年级 / 中三):三种遥控方式怎么选
  • 10
    Sep
    ESP-01S WiFi 继电器模块怎么用:烧录、接线与选购
  • 10
    Sep
    micro:bit V2 做 RBT 专题:板上已经有什么,还要买什么
  • 09
    Sep
    鱼菜共生 RBT 专题:迷你系统怎么搭、水泵定时与报告
Recent Comments
  • 3–5V 迷你潜水泵怎么选、怎么驱动 on Arduino 自动浇花系统 DIY 教程(含代码)
  • 3–5V 迷你潜水泵怎么选、怎么驱动 on SIM800L 一直重启?电源掉电重启完整排查
  • 3–5V 迷你潜水泵怎么选、怎么驱动 on DRV8833 vs L298N:电池小车该选哪块电机驱动板
  • 3–5V 迷你潜水泵怎么选、怎么驱动 on 继电器模块 Arduino 接线与安全指南
  • RBT 遥控小车专题:三种遥控方式怎么选 on TP4056 怎么用:安全给 18650 充电,再升压到 5V
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About us

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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