Datasheet

IDUINO for Maker’s life

www.openplatform.cc

Rotary Encode Module (SE055)

1 Introduction

Rotary encoder is a rotary input device (as in knob) that provides an indication of how

much the knob has been rotated AND what direction it is rotating in.It’s a great device

for stepper and servo motor control. You could also use it to control devices like

digital potentiometers.

Specification

 Operation voltage: 5V

 5Pinout

 Size:32*20*30mm

 Weight: 8g

2 Pinout

Description

CLK

Encoder A

Encoder B

Switch button

Power(5V DC)

Gnd

Ground

3.Example

This is a simple sketch that shows how to count the encoder position and how to

determine direction of rotation. It has no switch debounce, nor does it use interrupts.

A fully developed application might need to incorporate these in order to make it

robust.

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IDUINO for Maker’s life Rotary Encode Module (SE055) 1 Introduction Rotary encoder is a rotary input device (as in knob) that provides an indication of how much the knob has been rotated AND what direction it is rotating in.It’s a great device for stepper and servo motor control. You could also use it to control devices like digital potentiometers.
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IDUINO for Maker’s life ******Code Begin****** int pinA = 3; // Connected to CLK int pinB = 4; // Connected to DT int encoderPosCount = 0; int pinALast; int aVal; boolean bCW; void setup() { pinMode (pinA,INPUT); pinMode (pinB,INPUT); /* Read Pin A Whatever state it's in will reflect the last position */ pinALast = digitalRead(pinA); Serial.
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IDUINO for Maker’s life bCW = true; } else {// Otherwise B changed first and we're moving CCW bCW = false; encoderPosCount--; } Serial.print ("Rotated: "); if (bCW){ Serial.println ("clockwise"); }else{ Serial.println("counterclockwise"); } Serial.print("Encoder Position: "); Serial.println(encoderPosCount); } pinALast = aVal; } ******Code End****** www.openplatform.