Framework Arduino II: Aula 06 HC-SR04 Biblioteca - Wokwi ESP32, STM32, Arduino Simulator

#include "Ultrasonic.h"
int trig=9;
int echo=8;

HC_SR04 sensor(trig,echo);
void setup() {
  Serial.begin(9600);
}
void loop() {
  Serial.print("Distância em centimetros: ");
  Serial.println(sensor.distance());
  delay(1000);
}