int led = 13; //LED_BUILTIN;
int botao = 2; 
int press = 0;

void setup() {
  // put your setup code here, to run once:
  pinMode(led, OUTPUT);
  pinMode(botao, INPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  press = digitalRead(botao);
  if(press == HIGH){
    digitalWrite(led, HIGH);
  }else{
    digitalWrite(led, LOW);
  }
}