#include <Stepper.h>

int stepRevo = 200;
Stepper Step(stepRevo, 8, 9, 10, 11);

int pinA = 4;
int pinB = 3;


int verso;
int counter = -1;

int currentPinA;
int currentPinB;
int lastPinA = LOW ;


void setup() {
  Serial.begin(9600);  // Setup Serial Monitor
  Step.setSpeed(60);
  pinMode(pinA, INPUT);   // Set encoder pins as inputs
  pinMode(pinB, INPUT);
 
}



void loop() {
  currentPinA = digitalRead(pinA);  // Read the current state of CLK
  
  if (currentPinA != lastPinA  && currentPinA == HIGH) {

   currentPinB = digitalRead(pinB);
     
      
    if (currentPinB != currentPinA  ) {
      
      counter --;
      verso = HIGH;
      
    } else {
      
      counter ++;
      verso = LOW;
      
    }

    if(verso == HIGH){
    Serial.println("Direzione : orario ");
     Step.step(-stepRevo);
     delay(500);
    }else{
     Serial.println("Direzione : Antiorario ");
     if(counter != 0){
     Step.step(stepRevo); 
     delay(500);
     
    }
  }
   
    Serial.print("Giro : ");
    Serial.println(counter);
    Serial.println("****************************");
    
}
  
  lastPinA  = currentPinA;

 }