int pinTrig = 12;
int pinEcho = 13;

void setup() {
  Serial.begin(115200);
  pinMode(pinTrig, OUTPUT);
  pinMode(pinEcho, INPUT);

}

void loop() {
  digitalWrite(pinTrig, HIGH);
  delayMicroseconds((10));
  digitalWrite(pinTrig, LOW);

  int duration = pulseIn(pinEcho, HIGH);
  Serial.print("Distância em CM: ");
  Serial.println(duration / 58);
  
  delay(1000);
}