#define LED_W 10
#define LED_R 11
#define LED_Y 12
#define LED_G 13
#define BOTO_2 2
#define BOTO_3 3
#define BOTO_A5 A5
#define BOTO_A4 A4

bool bBotoPremut(int nQuin){
  delay(50);
  return !digitalRead(nQuin);
}

void setup() {
  pinMode(LED_W, OUTPUT);
  pinMode(LED_G, OUTPUT);
  pinMode(LED_Y, OUTPUT);
  pinMode(LED_R, OUTPUT);
  pinMode(BOTO_2, INPUT); 
  pinMode(BOTO_3, INPUT); 
  pinMode(BOTO_A5, INPUT); 
  pinMode(BOTO_A4, INPUT); 
}

void loop() {
  digitalWrite(LED_W,bBotoPremut(BOTO_A4));
  digitalWrite(LED_R,bBotoPremut(BOTO_A5));
  digitalWrite(LED_Y,bBotoPremut(BOTO_3));
  digitalWrite(LED_G,bBotoPremut(BOTO_2));
  delay(5);
}