KY-040 Rotary Encoder Module with Push Button Switch

The KY-040 Rotary Encoder Module is a compact and easy-to-use incremental rotary encoder designed for Arduino, microcontroller, and DIY electronics projects. It allows users to detect rotational direction, rotation steps, and button press input.

The module provides clockwise and counterclockwise rotation detection through its CLK and DT output pins. It also features a built-in push-button switch, making it suitable for applications where both rotary control and button selection are required.

Its simple interface and compact design make it ideal for menu navigation, volume control, parameter adjustment, motor control, robotics, embedded systems, and other electronic projects.

Key Features

• Rotary encoder with 360° rotation
• Built-in push-button switch
• Detects clockwise and counterclockwise rotation
• Easy to interface with Arduino and other microcontrollers
• Compact PCB design
• Suitable for DIY and prototype projects
• Simple digital output interface

Applications

• Arduino & microcontroller projects
• Menu and display navigation
• Volume and brightness control
• Parameter adjustment
• Robotics and automation
• DIY electronics
• Embedded control systems
• IoT and development projects