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Item #:
33724929
RLECS 2pcs Encoder Module Brick Sensor clickable Switch 360 Degree Rotary KY-040 with Knob Cap for Arduino
90% of respondents would recommend this to a friend
Item #:
33724929
PAB 18
Price Details
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Imported from USA store
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Order now and get it around Monday, September 07
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The KY-040 rotary encoder is a 360 degree rotary input device that provides an indication of how much the knob has been rotated AND which direction it is rotating in.
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What Stands Out
Precise Control
The RLECS Encoder Module enables smooth, accurate adjustments for variable inputs, making it ideal for projects requiring precise rotary control in Arduino applications.
User-Friendly Design
Equipped with a clickable switch and ergonomic knob cap, this module simplifies user interaction, enhancing usability for both beginners and advanced users in DIY electronics.
Versatile Compatibility
Designed for seamless integration with Arduino, this encoder module suits various projects, from robotics to gaming interfaces, providing flexibility and enhancing innovation in electronic designs.
Product Details
| Brand Name | RLECS |
| Age Range Description | Kid |
| Manufacturer Minimum Age (MONTHS) | 1 |
| Manufacturer | RLECS |
| UPC | 713838209902 |
| Model Number | RDE-KY040-2 |
| Manufacturer Part Number | RDE-KY040-2 |
| Educational Objective | Game, play |
| Operation Mode | Manual |
| Size | Small |
| Material Type | copper |
| Item Weight | 0.1 lbs (50 grams) |
Who Should Buy?
-
Hobbyist Developers
Ideal for hobbyists who enjoy building interactive projects with Arduino that require precise input controls.
-
Robotics Projects
Useful in robotics applications where precise angle measurement and control are crucial for servo motors.
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Educational Purposes
Perfect for educational settings, supporting students' understanding of sensors and Arduino programming in practical experiments.
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Commercial Use
Not suitable for commercial applications needing high reliability and durability over prolonged use in harsh environments.
Product Description
RLECS 2pcs Encoder Module Brick Sensor clickable Switch 360 Degree Rotary KY-040 with Knob Cap for Arduino
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Customer Questions & Answers
-
Question:
What is the operating voltage of the KY-040 Rotary Decoder Encoder?
Answer: The operating voltage is 5V. -
Question:
Is the package inclusive of any knob for the encoder?
Answer: No, the package does not include a knob for the encoder. -
Question:
Can the encoder be reset to its initial state?
Answer: Yes, the encoder can be reset to its initial state with the button on the rotary. -
Question:
What is the diameter of the shaft?
Answer: 6 mm.
RLECS Switch Encoders RDE-KY040-2 Editorial Review
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Pros
- High precision rotary encoding
- Durable and reliable design
- Easy integration with Arduino
- Smooth 360-degree rotation
- Compact size for projects
Cons
- Requires basic programming knowledge
Platform Trust & Buyer Confidence
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Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
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kund
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23-Jul-26 · via Trustpilot
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“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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23 July 2026 · via Trustpilot
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PAB 18
Order now and get it around Monday, September 07
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- 360 degree rotary input device for precise control
- Ideal for stepper and servo motor control
- Can be used to control devices like digital potentiometers
- Includes a push button switch for additional functionality
- No limitation on rotation counts
- Can be reset to its initial state with the button
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