int led1 = 21;
int led2 = 22;
int led3 = 23;

int pulsador = 19;
int val;

int sensor = 18;
int val2;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
  pinMode(pulsador, INPUT);
  pinMode(sensor, INPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation
  val = digitalRead(pulsador);
  val2 = digitalRead(sensor);

  if(val == HIGH){
    digitalWrite(led1, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, HIGH);
  }
  if(val2 == HIGH){
    Serial.println(1);
    digitalWrite(led1, LOW);
    digitalWrite(led2, LOW);
    digitalWrite(led3, LOW);
  }
}