ADEEPT Ultimate Sensor Kit for Raspberry Pi, Manual, Page: 59 / 151

Lesson 14 Rotary Encoder
Introduction
Rotary encoder switch, or small rotary encoder, is a switch electronic component that has
a set of regular and strictly-sequenced pulses. The module supports functions such as
increase, decrease, turn pages, etc., by collaboration with a microcontroller. For example,
in daily life you can see page turning of the mouse, menu selection, volume adjustment of
speakers, temperature adjustment of toaster, frequency adjustment of medical equipment,
etc.
Components
- 1 * Raspberry Pi
- 1 * GPIO Extension Board
- 1 * 40-Pin GPIO Cable
- 1 * Breadboard
- 1 * Rotary Encoder Module
- 1 * 5-Pin Wires
Experimental Principle
The Fritzing image:
The Physical picture:
Pin definition:
S Output
B Output
A Output