Arduino Rotary Encoder Tutorial | Precise Position & Scroll Wheel Control
Add precise rotational input to your Arduino with a rotary encoder. Unlike potentiometers, encoders have no end stops and track relative position. This tutorial covers quadrature decoding, interrupt-based reading, and using the encoder for menus and motor control.
🔄 What you'll learn and more things to explore:
• Rotary encoders vs potentiometers — which to use when
• Wiring a rotary encoder (CLK, DT, SW) to Arduino
• Interrupt-based quadrature decoding
• Building a menu scroll wheel or motor position controller
📌 Part of the Arduino Prototyping: Inputs series.
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