int byteEntrada = 0;
 
void setup(){
  Serial.begin(9600); // Abre a porta serial
  pinMode(8,OUTPUT);
  pinMode(9,OUTPUT);
  pinMode(10,OUTPUT);
  pinMode(11,OUTPUT);
  pinMode(12,OUTPUT);
  pinMode(13,OUTPUT);
  digitalWrite(13,LOW);
}
 
void loop(){

    Serial.write(Serial.read(A0));
	  
    byteEntrada = Serial.read();
      if(byteEntrada == '0'){
        digitalWrite(8,LOW);
      }else if(byteEntrada == '1'){
        digitalWrite(8,HIGH);
      }
      if(byteEntrada == '2'){
        digitalWrite(9,LOW);
      }else if(byteEntrada == '3'){
        digitalWrite(9,HIGH);
      }
      if(byteEntrada == '4'){
        digitalWrite(10,LOW);
      }else if(byteEntrada == '5'){
        digitalWrite(10,HIGH);
      }
            if(byteEntrada == '6'){
        digitalWrite(11,LOW);
      }else if(byteEntrada == '7'){
        digitalWrite(11,HIGH);
      }
      if(byteEntrada == '8'){
        digitalWrite(12,LOW);
      }else if(byteEntrada == '9'){
        digitalWrite(12,HIGH);
      }   
}