Rotary Encoder Module KY-040

Overview

This module features a rotational displacement encoder which outputs a series of pulses whenever the switch is rotated. It features two-phase outputs (A and B), that can also be used to sense the direction of rotation and a special output signal Z which indicates the absolute zero position of the rotary switch.

This rotary encoder can be reset to its initial state, from 0 to start counting.

It can be used as a fancy potentiometer replacement for digital amplifiers and other similar applications, allowing you to use an unlimited number of turns, in contrast to the classical potentiometers.

Specifications

• Operating Voltage: 5 V
• Circle Pulse Count: 20
• Size: 32 x 28 x 19 mm