#define pinoX A0       // pinagem para leitura do eixo X
#define pinoY A1       // pinagem para leitura do eixo Y
#define pinoBtn A2     // pinagem para leitura se pressionado
#define pinoLedL 4
#define pinoLedW 5
#define pinoLedS 6
#define pinoLedN 7

int valorX = 0;
int valorY = 0;
int valorBtn = 0;

void setup()
{
  Serial.begin(9600);
  pinMode(pinoLedN, OUTPUT);
  pinMode(pinoLedS, OUTPUT);
  pinMode(pinoLedL, OUTPUT);
  pinMode(pinoLedW, OUTPUT);
}

void loop() 
{
  valorX = analogRead(pinoX);
  valorY = analogRead(pinoY);
  valorBtn = analogRead(pinoBtn);

  // valorX e valorY retornarão 512 se esviverem centralizados

  if(valorX > 514)
  {
    Serial.println("Cima");
    digitalWrite(pinoLedN, HIGH);
    digitalWrite(pinoLedS, LOW);
    digitalWrite(pinoLedL, LOW);
    digitalWrite(pinoLedW, LOW);
  }
  if(valorX < 510)
  {
    Serial.println("Baixo");
    digitalWrite(pinoLedN, LOW);
    digitalWrite(pinoLedS, HIGH);
    digitalWrite(pinoLedL, LOW);
    digitalWrite(pinoLedW, LOW);
  }

  if(valorY > 514)
  {
    Serial.println("Esquerda");
    digitalWrite(pinoLedN, LOW);
    digitalWrite(pinoLedS, LOW);
    digitalWrite(pinoLedL, LOW);
    digitalWrite(pinoLedW, HIGH);
  }
  if(valorY < 510)
  {
    Serial.println("Direita");
    digitalWrite(pinoLedN, LOW);
    digitalWrite(pinoLedS, LOW);
    digitalWrite(pinoLedL, HIGH);
    digitalWrite(pinoLedW, LOW);
  }

  if(valorY > 510 & valorY < 514 & valorX > 510 & valorX < 514)
  {
    Serial.println("Direita");
    digitalWrite(pinoLedN, LOW);
    digitalWrite(pinoLedS, LOW);
    digitalWrite(pinoLedL, LOW);
    digitalWrite(pinoLedW, LOW);
  }

  // valorBtn retornara valores aleatórios e 0 se pressionado
  if(valorBtn == 0)
  {
    Serial.println("Pressionado");
    digitalWrite(pinoLedN, HIGH);
    digitalWrite(pinoLedS, HIGH);
    digitalWrite(pinoLedL, HIGH);
    digitalWrite(pinoLedW, HIGH);
  }
  
  Serial.print("ValorX: ");
  Serial.print(valorX);
  Serial.print("\t");
  Serial.print("Valor Y: ");
  Serial.print(valorY);
  Serial.print("\t");
  Serial.print("Valor Botão: ");
  Serial.println(valorBtn);
  delay(200);
}