int led = 12;
int botao =4;
bool x = 0;
void setup() {
 Serial.begin(115200);
 Serial.println("Hello, ESP32!");
 pinMode(led, OUTPUT);
 pinMode(botao, INPUT);
 
}


void loop() {
  
  x=digitalRead(botao);
  digitalWrite(led, LOW);
  Serial.println(x);
  if(x==HIGH)
  {
  digitalWrite(led, HIGH);
  delay(1000);
  x=LOW;
  }
}