A rotary encoder module for Arduino is a device used to detect the rotation of a shaft and convert it into digital signals that can be processed by an Arduino microcontroller. It typically consists of a rotating shaft attached to a disc with evenly spaced slots or markings, and sensors that detect the changes in the disc's position as it rotates. These changes are then translated into electrical signals which the Arduino can interpret to determine the direction and speed of rotation. Rotary encoder modules are commonly used in projects where precise control of rotary motion is required, such as robotics, CNC machines, or user input devices like knobs and dials. They offer advantages such as high resolution, low cost, and reliability.
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1x KY-040 rotary decoder module
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