int botao = 10;
int led = 6;

void setup() {
  pinMode(botao, INPUT_PULLUP);
  pinMode(led, OUTPUT);

}

void loop() {
  int botao_apertado= digitalRead(botao);
  if (botao_apertado == LOW){
    digitalWrite(led, HIGH);
  } else {
    digitalWrite(led, LOW);
  }

}