5 PCS KY-040 Rotary Encoder Module, 360 Degree Rotary Encoder 15 x 16.5 mm with Knobs Cap Brick Sensor Modules for Electric Fan Light Control etc, Black
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5 PCS KY-040 Rotary Encoder Module, 360 Degree Rotary Encoder 15 x 16.5 mm with Knobs Cap Brick Sensor Modules for Electric Fan Light Control etc, Black
Experience precise control and smooth operation with our 5-pack aluminum alloy knob cap rotary encoder modules.
5 PCS KY-040 Rotary Encoder Module, 360 Degree Rotary Encoder 15 x 16.5 mm with Knobs Cap Brick Sensor Modules for Electric Fan Light Control etc, Black
物品 #: 198501736

5 PCS KY-040 Rotary Encoder Module, 360 Degree Rotary Encoder 15 x 16.5 mm with Knobs Cap Brick Sensor Modules for Electric Fan Light Control etc,

物品 #: 198501736

HKD 100

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現在訂購，約可在下列時間收貨： Sunday, 八月 16
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Experience precise control and smooth operation with our 5-pack aluminum alloy knob cap rotary encoder modules.
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What Stands Out

Precise Control
The KY-040 Rotary Encoder offers precise 360-degree control, allowing users to easily adjust settings for devices like fans or lights, ensuring optimal performance in various applications.
Compact Design
Measuring just 15 x 16.5 mm, this compact rotary encoder fits seamlessly into tight spaces. Its small footprint is perfect for DIY projects and embedded applications without sacrificing functionality.
Versatile Usage
Ideal for a wide range of applications, this encoder module is designed for controlling electric devices. Its versatility makes it suitable for hobbyists and professionals alike, enhancing any project.

產品詳情

Shop 5 PCS KY-040 Rotary Encoder Module, 360 Degree Rotary Encoder 15 x 16.5 mm with Knobs Cap Brick Sensor Modules for Electric Fan Light Control etc, Black online at a best price in 香港. B0FVXMMFM9
Graphics CoprocessorIntel Iris Plus Graphics 640
Graphics Card Ram2
GPU Clock Speed5
Video Output InterfaceUSB
Graphics Ram TypeGDDR5X
Compatible DevicesLaptop
Graphics Card InterfacePCI Express
Memory Clock Speed5
BrandFdcLixuvol
Video ProcessorPNY
Built-In Mediano
Model NameundefinedBCDL5311
ManufacturerFdcLixuvol
Mfr Part NumberundefinedKJTF8453
Model NumberundefinedBCDL5311
Unit Count5.0 Count
Graphics Ram Size2
Item Weight0.2 lbs (90 grams)

Who Should Buy?

Suitable For
  • Electronics Hobbyists

    Perfect for enthusiasts creating custom projects requiring precise rotational input for control mechanisms.

  • DIY Projects

    Ideal for makers and DIYers looking to integrate rotary controls into their home automation or robotics projects.

  • Educational Purposes

    Useful for educators teaching about sensors and control systems in classrooms or labs.

Not Suitable For
  • Professional Applications

    Not suitable for critical applications where high precision and reliability are mandatory in professional settings.

產品敘述

5 PCS KY-040 Rotary Encoder Module, 360 Degree Rotary Encoder 15 x 16.5 mm with Knobs Cap Brick Sensor Modules for Electric Fan Light Control etc, Black

有疑問？ 與我們聊天

客戶問題＆回答

  • 題: What is a KY-040 Rotary Encoder Module used for?

    回答: The KY-040 Rotary Encoder Module is primarily used for detecting angular position and motion. It is commonly employed in various applications like controlling the speed of motors, adjusting the brightness of lights, or navigating through settings in digital interfaces. Its reliable feedback mechanism allows users to create responsive systems in projects like electric fan controls or interactive displays.
  • 題: How does a rotary encoder work?

    回答: A rotary encoder works by converting the rotary position of a shaft into a digital signal. When turned, it generates pulses that are interpreted as increments of position. The KY-040 utilizes a pair of output signals that help determine the direction of rotation, making it ideal for applications requiring precise control, such as volume adjustments in audio devices or menu navigation in electronics.
  • 題: What does the KY-040 module include?

    回答: The KY-040 module includes the rotary encoder itself, which features a robust body measuring 15 x 16.5 mm and comes with a knobs cap for better handling. This compact design is beneficial in diverse projects as it allows for easy integration into your electronic circuits without consuming much space, making it a versatile choice for hobbyists and professionals alike.
  • 題: Can I use the KY-040 for controlling an electric fan?

    回答: Yes, the KY-040 Rotary Encoder Module is perfect for controlling electric fans. By connecting it to your microcontroller, you can adjust the fan speed based on how much you rotate the encoder. This provides an intuitive and user-friendly interface for regulating airflow, making it highly suitable for DIY fan control systems in home automation projects.
  • 題: Is the KY-040 module compatible with Arduino?

    回答: Absolutely! The KY-040 Rotary Encoder Module is highly compatible with Arduino, making it a popular choice for DIY projects. You can easily connect it to an Arduino board and utilize libraries available online to handle encoding signals. This compatibility allows for fun experiments in creating interactive projects like digital volume knobs or scrolling menus.
  • 題: What are the dimensions and design of the KY-040 Rotary Encoder?

    回答: The KY-040 Rotary Encoder features a compact design with dimensions of 15 x 16.5 mm, making it easy to integrate into various projects without requiring significant space. Its black color and sturdy build ensure durability while maintaining an aesthetically pleasing look. This makes it ideal not just for electronic applications but also for designs where appearance matters.
  • 題: How do I connect the KY-040 to my microcontroller?

    回答: Connecting the KY-040 Rotary Encoder to your microcontroller typically involves wiring the encoder outputs to the input pins of the microcontroller. The module has three main connections: ground, VCC, and two output pins for A and B signal. Following a simple wiring diagram, you can easily set it up to start reading the encoder's position and direction, allowing you to create responsive controls in your projects.
  • 題: What type of projects can benefit from the KY-040 Rotary Encoder?

    回答: Projects that require precise position tracking or control will greatly benefit from the KY-040 Rotary Encoder. For instance, it can be integrated into audio equipment to create volumetric controls, used in robotics for motor control, or even in interactive user interface panels. Its versatility and ease of integration make it an excellent component for both beginner and advanced electronic projects.
  • 題: Can I adjust the sensitivity of the encoder?

    回答: The sensitivity of the KY-040 Rotary Encoder is primarily determined by its design, but you can adjust the coding mechanism in your software to interpret outputs more or less sensitively. This means you can program your system to make large adjustments with small movements or create fine-tuning capability for precise control according to your project needs.
  • 題: Where can I buy 5 PCS KY-040 Rotary Encoder Module in Hong Kong?

    回答: You can purchase the 5 PCS KY-040 Rotary Encoder Module from Ubuy in Hong Kong. Ubuy offers a variety of electronic components, including this rotary encoder. By shopping at Ubuy, you can ensure a smooth transaction and prompt customer service, making it a reliable choice for your electronic component needs.

FdcLixuvol Graphics Cards undefinedBCDL5311 Editorial Review

The 5 PCS KY-040 Rotary Encoder Module has garnered a mix of admiration and disappointment among its users. Reviewers generally commend the performance and functionality of these encoders, praising their tactile feel and reliable operation in various applications. Users appreciate that the encoders read accurately in their software setups, making them a dependable choice for projects like electric fan or light controls. The inclusion of 10kΩ pull-up resistors is also noted as a valuable feature that improves performance by addressing noise issues typically encountered in rotary encoders. However, the product's reception is marred by complaints about missing components, specifically the knobs that Consumers expected to be included. The discrepancy between the listing and what was received has led to frustration and a feeling of being misled. Additionally, some users have pointed out that the knobs provided do not fit the encoder stems properly due to incompatible designs, necessitating the need for custom solutions like 3D printing. Moreover, while the rotary encoder's push button is reported to be sturdy, several reviews mention that it requires a stiff force to activate. This feature, while ensuring accidental triggers are avoided, can affect user experience if smooth operation is a priority. The presence of pre-soldered bent header pins and mounting options adds to the usability of the product, although some customers feel that these features can unnecessarily increase the footprint of the module. Pricing has also been a common point of contention, with some reviewers noting that similar products can be sourced for less directly from suppliers in China. In summary, the KY-040 Rotary Encoder Module is viewed positively for its functionality and tactile feedback but negatively for the discrepancies in its product description and overall value compared to competing options. **

Customer Reviews & Ratings

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優點

  • Reliable and accurate performance in software
  • Tactile feel with a sturdy push button
  • Pre-soldered bent header pins included

缺點

  • Missing knobs as advertised

Platform Trust & Buyer Confidence

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3.8/5 96 reviews
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F Zhang
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“Good product, and smooth delivery!”

18-Jul-26 · via Trustpilot
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Roxy
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“Great products and services”

17 April 2026 · via Trustpilot
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Khushi
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“Ubuy Hong Kong is a game-changer. I was looking for a specific American brand that doesn't ship to Asia, and Ubuy had it in stock. The selection of global products is incredible. It saves me the hassle of using freight forwarders or asking friends to bring items over. The process was seamless from checkout to delivery”

6 July 2026 · via Trustpilot
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kritika
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“I?m always nervous buying electronics and skincare online, but Ubuy Hong Kong delivered exactly what I ordered and it was 100% genuine. It?s refreshing to find a platform that you can actually trust with premium brands. Will definitely be a returning customer.”

3 July 2026 · via Trustpilot
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Sam
Verified buyer

“Great product, good packing, the goods arrived quickly and well protected.”

6 June 2026 · via Trustpilot
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HKD 100

現在訂購，約可在下列時間收貨： Sunday, 八月 16

QTY:

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PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

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Fastest cross-border delivery

特色和優勢

  • Includes 5 encoder modules with matching black knobs for versatile projects.
  • Durable aluminum alloy knobs provide smooth tactile feedback.
  • Bidirectional counting allows for accurate tracking in both directions.
  • Works on a safe 5V operating voltage for DIY electronics.
  • Instant reset function simplifies calibration by easily returning to zero.
  • Ideal for prototypes, repairs, or simultaneous installations.

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