---
product_id: 82963381
title: "Rotary Decoder Encoder Module KY-040 for Arduino - Pack of 2"
brand: "robodo"
price: "82.11 DT"
currency: TND
in_stock: true
url: https://www.desertcart.tn/products/82963381-rotary-decoder-encoder-module-ky-040-for-arduino-pack-2
store_origin: TN
region: Tunisia
---

# 360° infinite rotation integrated push button switch 20 pulses per revolution precision Rotary Decoder Encoder Module KY-040 for Arduino - Pack of 2

**Brand:** robodo
**Price:** 82.11 DT
**Availability:** ✅ In Stock

## Summary

> 🔧 Turn up your project’s precision and control with KY-040!

## Quick Answers

- **What is this?** Rotary Decoder Encoder Module KY-040 for Arduino - Pack of 2 by robodo
- **How much does it cost?** 82.11 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/82963381-rotary-decoder-encoder-module-ky-040-for-arduino-pack-2)

## Best For

- robodo enthusiasts

## Why This Product

- Trusted robodo brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Robust PCB and brass components ensure durability for long-term, reliable performance.
- • **Seamless 360° Control:** Endless rotation for fluid, uninterrupted input—perfect for dynamic interfaces.
- • **Precision at Every Turn:** 20 pulses per revolution deliver accurate, stepwise feedback for flawless digital control.
- • **Dual-Phase Signal Output:** Two-phase square wave signals enable precise detection of rotation direction and speed.
- • **One Button, Multiple Commands:** Integrated push button adds intuitive ‘select’ or ‘confirm’ functionality to your projects.

## Overview

The Rotary Decoder Encoder Module KY-040 by Robodo offers 360° infinite rotation with 20 pulses per revolution, delivering precise incremental feedback. Featuring dual output signals and an integrated push button switch, it’s engineered with durable PCB and brass components for reliable, long-lasting use in Arduino and digital control applications.

## Description

Rotary Decoder Encoder Module KY-040 for Arduino (Pack of 1)

## Features

- Incremental Encoder Type: Provides accurate step-by-step rotational feedback, ideal for digital control applications
- 360° Infinite Rotation: The knob can rotate endlessly in both clockwise and counterclockwise directions, making it perfect for continuous control systems
- Dual Output Signal (A & B): Outputs two-phase square wave signals that allow microcontrollers to detect rotation direction and speed.
- Integrated Push Button Switch: A pressable shaft button allows for additional user input like “select” or “confirm” functionality in interface menus
- Durable Construction: Built using a strong PCB base and brass mechanical components for long life and reliability.
- 20 Pulses Per Revolution (CPR): Provides sufficient resolution for many interactive projects such as volume control or navigation

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Robodo |
| Manufacturer | Bombay Electronics |
| Country of Origin | China |
| Model number | MO50 |
| Number of Memory Sticks | 1 |
| Item Weight | 400 g |
| Product Dimensions | 7 x 5 x 5 cm; 400 g |
| Item model number | MO50 |
| Item Height | 50 Millimeters |
| Item Width | 50 Millimeters |
| Included Components | 1 x Rotary Decoder Encoder Module KY-040 |

## Images

![Rotary Decoder Encoder Module KY-040 for Arduino - Pack of 2 - Image 1](https://m.media-amazon.com/images/I/51VSab1Yu8L.jpg)
![Rotary Decoder Encoder Module KY-040 for Arduino - Pack of 2 - Image 2](https://m.media-amazon.com/images/I/61CsvtGRCAL.jpg)
![Rotary Decoder Encoder Module KY-040 for Arduino - Pack of 2 - Image 3](https://m.media-amazon.com/images/I/6170jy9jJnL.jpg)
![Rotary Decoder Encoder Module KY-040 for Arduino - Pack of 2 - Image 4](https://m.media-amazon.com/images/I/41EO-ksc0nL.jpg)
![Rotary Decoder Encoder Module KY-040 for Arduino - Pack of 2 - Image 5](https://m.media-amazon.com/images/I/51iw4uw1afL.jpg)

## Available Options

This product comes in different **Number of Items** options.

## Frequently Bought Together

- Robodo Rotary Decoder Encoder Module KY-040 for Arduino (Pack of 1)
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**Shop now:** [https://www.desertcart.tn/products/82963381-rotary-decoder-encoder-module-ky-040-for-arduino-pack-2](https://www.desertcart.tn/products/82963381-rotary-decoder-encoder-module-ky-040-for-arduino-pack-2)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-03-24*