ESP32 Rotary Encoder Project

The ESP32 Rotary Encoder project demonstrates how to interface a rotary encoder with an ESP32 microcontroller to detect rotational movement and button presses. Rotary encoders are commonly used in applications requiring precise control over rotation and switch events, such as volume control, menu navigation, and parameter adjustment.

Components Needed

• Power Supply

Block Diagram

Circuit Setup

Connecting the Rotary Encoder to ESP32:

Instructions

Setup:

nitialize serial communication for debugging purposes using

onfigure the CLK, DT, and SW pins as inputs with internal pull-up resistors using

Operation:

• Use an interrupt to detect changes in the CLK pin state (
• Implement an interrupt service routine (
• Print the current encoder position to the Serial Monitor when it changes.

• Poll the state of the SW pin using
• Print a message to the Serial Monitor when the button is pressed.

Considerations:

Applications