#include <Ultrasonic.h>

const int trigPin = D2; // Pin Trigger HC-SR04
const int echoPin = D3; // Pin Echo HC-SR04

Ultrasonic ultrasonic(trigPin, echoPin);

void setup() {
  Serial.begin(115200);
}

void loop() {
  long distance = ultrasonic.read();
  Serial.print("Distance: ");
  Serial.print(distance);
  Serial.print(" cm");
  delay(1000); // Delay 1 detik
}