#define BOTAO 8
#define LED 13
#define BOTAO1 3

void setup() {
  // put your setup code here, to run once:
  pinMode(BOTAO, INPUT_PULLUP);
  pinMode(BOTAO1, INPUT_PULLUP);
  pinMode(LED, OUTPUT);
}

void opcao01() {

  /* EXEMPLO 1 
  Ao pressionar o botão BT1
  O LED piscará com freq de 2hz 
  */
  // put your main code here, to run repeatedly:
  if  (digitalRead(BOTAO) == LOW) 
  {
    digitalWrite(LED, HIGH);
    delay (250);
    digitalWrite(LED, LOW);
    delay (250);
  }

}

void opcao02() {
  //
  bool statusBT;

  statusBT = digitalRead(BOTAO1);

  // put your main code here, to run repeatedly:
  if  (statusBT == 0) 
  {
    digitalWrite(LED, 1);
    delay (3000);
    digitalWrite(LED, 0);
    delay (500);
  }

}

void loop() {
  opcao01();
  opcao02();
}