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

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.

How does a rotary encoder work?

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.

What does the KY-040 module include?

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.

Can I use the KY-040 for controlling an electric fan?

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.

Is the KY-040 module compatible with Arduino?

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.

What are the dimensions and design of the KY-040 Rotary Encoder?

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.

How do I connect the KY-040 to my microcontroller?

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.

What type of projects can benefit from the KY-040 Rotary Encoder?

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.

Can I adjust the sensitivity of the encoder?

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.

Where can I buy 5 PCS KY-040 Rotary Encoder Module in South Africa?

You can purchase the 5 PCS KY-040 Rotary Encoder Module from Ubuy in South Africa. 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.

How to Shop 5 PCS KY-040 Rotary Encoder Module, 360 Degree Online From Ubuy?

It’s easy to shop 5 PCS KY-040 Rotary Encoder Module, 360 Degree online from Ubuy. You just have to search for the product, choose your shipping method while checking out and get it delivered to your location.

Is 5 PCS KY-040 Rotary Encoder Module, 360 Degree Available to Shop Online in South Africa?

Yes, at Ubuy South Africa this product is available for you to shop at a reasonable price. The 5 PCS KY-040 Rotary Encoder Module, 360 Degree is not available locally but you can trust us with our express shipping services.

How Long Does It Take to Get Product After Placing the Order?

The delivery time of your ordered product varies as per what you've ordered and the shipping method that you've chosen. The estimated delivery time is mentioned during the checkout process, so be carefree while shopping.

FdcLixuvol

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.

FdcLixuvol

Item #: 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,

77% of respondents would recommend this to a friend

Item #: 198501736

ZAR 414

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^{*All items will import from US}

Availability : Out of stock

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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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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

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.

Product Details

Graphics Coprocessor	Intel Iris Plus Graphics 640
Graphics Card Ram	2
GPU Clock Speed	5
Video Output Interface	USB
Graphics Ram Type	GDDR5X
Compatible Devices	Laptop
Graphics Card Interface	PCI Express
Memory Clock Speed	5
Brand	FdcLixuvol
Video Processor	PNY
Built-In Media	no
Model Name	undefinedBCDL5311
Manufacturer	FdcLixuvol
Mfr Part Number	undefinedKJTF8453
Model Number	undefinedBCDL5311
Unit Count	5.0 Count
Graphics Ram Size	2
Item Weight	0.2 lbs (90 grams)

Who Should Buy?

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.

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

Product Description

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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Customer Questions & Answers

Question: How to Shop 5 PCS KY-040 Rotary Encoder Module, 360 Degree Online From Ubuy?

Answer: It’s easy to shop 5 PCS KY-040 Rotary Encoder Module, 360 Degree online from Ubuy. You just have to search for the product, choose your shipping method while checking out and get it delivered to your location.
Question: Is 5 PCS KY-040 Rotary Encoder Module, 360 Degree Available to Shop Online in South Africa?

Answer: Yes, at Ubuy South Africa this product is available for you to shop at a reasonable price. The 5 PCS KY-040 Rotary Encoder Module, 360 Degree is not available locally but you can trust us with our express shipping services.
Question: How Long Does It Take to Get Product After Placing the Order?

Answer: The delivery time of your ordered product varies as per what you've ordered and the shipping method that you've chosen. The estimated delivery time is mentioned during the checkout process, so be carefree while shopping.

FdcLixuvol Graphics Cards undefinedBCDL5311 Editorial Review

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 offers a reliable input mechanism suited for selections, featuring several click-stops. Users appreciate that the unit has a nice tactile feedback and reads accurately in software, indicating its reliable performance. However, some drawbacks include the misalignment between the included knobs and the encoder's D-shaft profile, leading some users to consider custom solutions. Additionally, while the pre-soldered header is welcomed, the stiff switch may require a firm press, ensuring you won't accidentally trigger it. Overall, these rotary encoders deliver dependable functionality despite certain compatibility issues.

Customer Reviews & Ratings

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Pros

Reliable input mechanism with a nice tactile feedback
Includes 10kΩ pull-up resistors for better performance
Sturdy build with mounting options available
Pre-soldered header pins included for easy connection

Cons

Knobs included do not fit properly on the shafts

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Ultimo aggiornamento Agosto 29, 2026

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