Arduino 2 receptor

void recebeir(){
  char valorlido = Serial.read();

    //liga-desliga
const unsigned int S_pwr[68]={4600,4350,700,1550,650,1550,650,1600,650,450,650,450,650,450,650,450,700,400,700,1550,650,1550,650,1600,650,450,650,450,650,450,700,450,650,450,650,450,650,1550,700,450,650,450,650,450,650,450,650,450,700,400,650,1600,650,450,650,1550,650,1600,650,1550,650,1550,700,1550,650,1550,650};
// channel up
const unsigned int S_pup[68]={4600,4350,700,1500,700,1500,700,1550,700,450,650,400,700,450,650,450,700,400,700,1500,700,1550,650,1550,700,450,650,450,700,400,700,400,700,400,700,400,700,1550,700,400,700,400,700,1550,650,450,700,400,700,400,700,1550,650,450,650,1600,650,1550,650,450,700,1500,700,1500,700,1550,650};
// channel down
const unsigned int S_pdown[68]={4650,4300,700,1550,700,1500,700,1550,700,400,700,400,700,400,700,450,650,450,650,1550,700,1500,700,1550,700,400,700,400,700,400,700,450,700,400,700,400,700,400,700,450,650,450,650,1550,700,400,700,450,650,400,700,1550,700,1500,700,1550,700,1500,700,400,700,1550,650,1550,700,1500,700};
// volume up
const unsigned int S_vup[68]={4600,4350,650,1550,700,1500,700,1550,700,400,700,400,700,450,650,450,700,400,700,1500,700,1550,650,1550,700,400,700,400,700,450,650,450,700,400,700,1500,700,1550,650,1550,700,400,700,450,700,400,700,400,700,400,700,450,650,450,650,450,650,1550,700,1500,700,1550,700,1500,700,1550,650};
// volume down
const unsigned int S_vdown[68]={4600,4350,700,1550,650,1550,700,1500,700,450,650,450,700,400,700,400,700,400,700,1550,700,1500,700,1550,700,400,700,400,700,400,700,450,650,450,650,1550,700,1500,700,450,650,1550,700,400,700,400,700,450,700,400,700,400,700,400,700,1550,700,400,700,1500,700,1500,700,1550,700,1500,700};
// mute
const unsigned int S_mute[68]={4650,4350,650,1550,650,1550,700,1550,700,400,700,400,700,400,700,450,650,450,650,1550,700,1500,700,1550,700,400,700,450,650,400,700,450,700,400,700,1500,700,1550,650,1550,700,1500,700,450,700,400,700,400,700,400,700,400,700,450,650,450,700,400,700,1500,700,1550,650,1550,700,1500,700};
// source
const unsigned int S_scr[68]={4600,4350,700,1550,650,1550,700,1500,700,450,650,450,700,400,700,400,700,400,700,1550,700,1500,700,1550,700,400,700,400,700,400,700,400,700,400,700,1550,700,400,700,450,650,450,650,450,700,400,700,400,700,400,700,450,650,1550,700,1500,700,1550,650,1550,700,1500,700,1550,700,1500,700};


    if (valorlido == 'O'){ //liga ou desliga a tv
  {
  for (int i = 0; i < 1; i++) //Envia um flash de led com 3 comandos
  irsend.sendRaw(S_pwr,68,38); //código clonado
  delay(52);
  }
  Serial.println("Liguei ou Desliguei a TV");
  }

    else  if (valorlido == 'W'){ //Muda o canal para o canal acima
  {
  for (int i = 0; i < 1; i++) //Envia um flash de led com 3 comandos
  irsend.sendRaw(S_pup,68,38); //código clonado
  delay(52);
  }
  Serial.println("Canal +");
  }

   else  if (valorlido == 'K'){ //Muda o canal para o canal abaixo
  {
  for (int i = 0; i < 1; i++) //Envia um flash de led com 3 comandos
  irsend.sendRaw(S_pup,68,38); //código clonado
  delay(52);
  }
  Serial.println("Canal -");
  }

    else  if (valorlido == 'Y'){ //Aumenta o Volume da TV
  {
  for (int i = 0; i < 1; i++) //Envia um flash de led com 3 comandos
  irsend.sendRaw(S_vup,68,38); //código clonado
  delay(52);
  }
  Serial.println("Volume +");
  }


      else  if (valorlido == 'Q'){ //Abaixa o Volume da TV
  {
  for (int i = 0; i < 1; i++) //Envia um flash de led com 3 comandos
  irsend.sendRaw(S_vdown,68,38); //código clonado
  delay(52);
  }
  Serial.println("Volume -");
  }
    else  if (valorlido == 'M'){ //Deixa o Volume no Mudo
  {
  for (int i = 0; i < 1; i++) //Envia um flash de led com 3 comandos
  irsend.sendRaw(S_mute,68,38); //código clonado
  delay(52);
  }
  Serial.println("Mudo");
  }
     else  if (valorlido == 'Z'){ //Acessa o source
  {
  for (int i = 0; i < 1; i++) //Envia um flash de led com 3 comandos
  irsend.sendRaw(S_scr,68,38); //código clonado
  delay(52);
  }
  Serial.println("Source");
  }
}