#include <Encoder.h>

long last_position = 0;

Encoder myEnc(2, 3); // pins for A and B

void setup() {
  Serial.begin(9600);
}

void loop() {
  long position = myEnc.read();
  if(position != last_position){
    last_position = position;
    Serial.println(position);
  }
  delay(100);
}