Description

🎛️ KY-040 Rotary Encoder Module – Precise Motion Control for Your Electronics Projects! 🔄

Take control of your next project with the KY-040 Rotary Encoder Module—a compact and reliable input device that translates rotational movement into digital signals. Featuring 20 cycles per revolution (CPR) and a built-in push button, this module is perfect for creating interactive menus, adjusting motor speed, navigating user interfaces, and more. Ideal for Arduino, Raspberry Pi, and other microcontroller platforms.

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✅ Key Features

• 🌀 Incremental Rotation Sensing
  Detects direction and steps using quadrature (A/B) phase output—track clockwise and counterclockwise movement with precision.

• 🔘 Built-In Push Button
  Integrated tactile switch lets you press the shaft to select options or change modes.

• 🎯 High Resolution
  Offers 20 pulses per revolution, giving fine control over adjustments.

• 🔌 Easy to Interface
  Standard 5-pin header makes it simple to connect to most microcontrollers.

• 🔁 Durable Brass Shaft
  Robust construction ensures smooth rotation and long-lasting performance.

• ⚡ Compatible with 3.3V & 5V Systems
  Works seamlessly with Arduino, ESP32, Raspberry Pi, and other boards.

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📊 Technical Specifications

🧷 Pinout:

• CLK (A): Phase A output

• DT (B): Phase B output

• SW: Button switch output (active low)

• + (VCC): Connect to 3.3V or 5V

• GND: Ground connection

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🚀 Applications

• 🎚️ Volume & Menu Control: Scroll through settings or adjust audio levels

• 🤖 Robotics: Monitor wheel rotation or joint angles for precise movement

• 🔧 Motor Speed Control: Adjust RPM in CNC, laser cutters, or 3D printers

• 🕹️ DIY Game Controllers: Create knobs, dials, or selectors

• ⚙️ Industrial Interfaces: Navigate through machine UI or control systems

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⚙️ How It Works

• Quadrature Output:
  Generates two digital signals (A and B) that allow you to detect rotation direction and count steps.

  • Clockwise: A leads B

  • Counterclockwise: B leads A

• Push Button Switch:
  Shaft press pulls the SW pin LOW—ideal for triggering menu selections.

• Code Integration:
  Use Arduino libraries like Encoder.h for seamless software decoding.

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🌟 Why Choose KY-040?

• Plug-and-play with most dev boards

• Dual-function: Rotate + Press

• Excellent value for budget-conscious makers

• Built to last with over 100k cycles of use

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📦 Package Includes

• 1 × KY-040 Rotary Encoder Module

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🛠️ Add tactile, rotary control to your next project! From adjusting brightness or volume to navigating custom menus, the KY-040 gives you the precision and interaction your build deserves.

👉 Order now and bring your project to life with reliable, responsive control!