Prova BT

#include <SoftwareSerial.h>
int RX = 3;
int TX = 2;
SoftwareSerial BT(RX, TX);

long VAL = 0 ;

void setup() {
  Serial.begin(9600);  // put your setup code here, to run once:
  BT.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:

  if (BT.available()); {
    VAL = BT.parseInt();

    if (VAL > 0) {
      Serial.println(VAL);
    }
  }
}