Tutorial for Arduino 360 Degree Encoder

Description

A rotary encoder is an incremental electromechanical component with a shaft that converts the angular position or motion of a shaft or axle to digital code. The output of incremental encoders provides information about the motion of the shaft, which is typically further processed in processor / controllers into information such as speed, distance, and position.The shaft has unlimited 360 degree rotation.

Specification

• Model: SN-360
• Type: Incremental Encoder
• Cycles per revolution (CPR): 20
• Working voltage: 0 – 5V
• Material: PCB + Brass
• Weight: 10g
• Size: 32 x 19 x 30mm

To do this tutorial, you will need as following below:

1. Arduino 360 Degree Encoder
2. Arduino Uno Board and USB Cable
3. Female-Male Jumper Wires

• CLK : Pin A
• DT : Pin B
• S : No push switch connection
• + : Power
• GND : Grounding

Connect Arduino 360 Degree Encoder to Arduino Uno as following :

• VCC to 5V
• GND to GND
• CLK to D3
• CLK to D4

and then connect Arduino Uno to your PC.

This is a sample source code for the circuit. You can download, open and and upload it into your Arduino Uno Board. Make sure to go to tools > Port & Board. Select the correct board (Arduino/Genuino Uno) and port (refer to your own port COM#) before uploading the code.

After you have succesfully uploaded it into you Arduino Uno Board. Go to tools > Serial Monitor and you will see "BEGIN" printed on the serial monitor. Now, you can start to rotate your encoder's shaft and see the output printed on the serial monitor.

• When you rotate the shaft clockwise, serial monitor will print

Rotate Clockwise
Encoder Count: 1

Rotate Clockwise
Encoder Count: 2

• and when you rotate clockwise, serial monitor will print

Rotate Counterclockwise
Encoder Count: 0

Rotate Counterclockwise
Encoder Count: -1

• You can feel a small “clicks” as you turn the encoder.