#include <SoftwareSerial.h>

/*SoftwareSerial BT(10, 11); // RX, TX*/
char dato;



void setup() {

  Serial.begin(9600);
  pinMode(8,OUTPUT);
  pinMode(9,OUTPUT);
  pinMode(10,OUTPUT);
  digitalWrite(8,HIGH);
  digitalWrite(9,HIGH);
  digitalWrite(10,HIGH);
}

void loop() {

 if (Serial.available())
   {
    dato=Serial.read();
    Serial.print(dato);
   }

   if(dato=='d')
   {
    digitalWrite(8,LOW);
    digitalWrite(9,HIGH);
    digitalWrite(10,HIGH);
   

   }

    if(dato=='u')
   {
    digitalWrite(10,LOW);
    digitalWrite(9,HIGH);
    digitalWrite(8,HIGH);
  

   }

   
   
}