#include <NewPing.h>

// Define the trigger and echo pins for the ultrasonic sensor
#define TRIGGER_PIN 2
#define ECHO_PIN 4


// Define the maximum distance we want to measure
#define MAX_DISTANCE 500 // Maximum distance in centimeters

// Create a NewPing object with the specified trigger and echo pins
NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE);

void setup() {
  // Initialize serial communication
  Serial.begin(315200);
}

void loop() {
  // Send a ping to the ultrasonic sensor and get the result in microseconds
  delay(500);
  unsigned int distance = sonar.ping_cm();
  
  // If distance is greater than zero, it means a valid reading was obtained
  if (distance == 0) {
    // Print the distance to the serial monitor
    Serial.println("Out of range");
  } else {
    // If distance is zero or negative, there was an error in the reading
    Serial.print("Distance: ");
    Serial.print(distance);
    Serial.println(" cm");
  }
  
}