int contor_pasi=0;
String dir="";
unsigned long ultima_citire=0;


void  setup() {
  Serial.begin(9600);
  attachInterrupt(digitalPinToInterrupt(3),  rotire_encoder, FALLING);
  pinMode(4,INPUT);
}

void rotire_encoder(){
  if (millis()-ultima_citire>5){
    if (digitalRead(4)==1){
      contor_pasi++;
      dir="SENS_DIRECT";
      }
    if (digitalRead(4)==0){
      contor_pasi--;  
      dir="SENS_INVERS";}
    ultima_citire=millis();
  }
}

void loop()  {
  Serial.print("contor_pasi: ");
  Serial.print(contor_pasi);
  Serial.print("  directie: ");
  Serial.println(dir);  
}