#define EncData 5
#define EncSw 3
#define EncClk 4

int counter = 0;
int PreviousState;
int currentState;



void setup() {
  pinMode(EncData, INPUT);
  pinMode(EncSw, INPUT);
  pinMode(EncClk, INPUT);
  Serial.begin(9600);

  PreviousState = digitalRead(EncClk);
}

void loop() {
 
  currentState = digitalRead(EncClk);
  if (currentState != PreviousState) {
    if (digitalRead(EncData) != currentState) {
      counter--;
      
    } else{
      counter++;
    }
  Serial.println(counter);
  }
    
  
  PreviousState=currentState;
}