Basic Setup for Ultrasonic Sensor and Arduino

/* 
 * Credits to all sources on Google, acting as reference to this code below. This code is not 
 * TechValer's own creation. TechValer has referred to different projects and websites to 
 * find an easy code for beginners to get started with Ultrasonic Sensor HC-SR04 and Arduino.
 * TechValer does not claim this code to be its own. TechValer is greatly thankful for original 
 * creaters of this code and also all others who acted as reference. 
 */

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/* 
 *  Note: Any model of Arduino can be used for this project. Just keep in mind the digital pins.
 *  The readings available in the serial monitor are almost accurate.
 *  Refer to the documentation for better understanding of this particular code and project.
 */

/*
 * Thanks to Drona Automations Pvt.Ltd for Sponsoring this project!
 */
 
#define trigPin 6 // Connect trigpin to D6 on Arduino
#define echoPin 5 // Connect echopin to D5 on Arduino

// defines variables

long duration; // It's a variable for the duration of sound wave travel
int inchdistance; // It's a variable for measurement of distance in inches
int cmdistance; // It's a variable for measurement of distance in centimeters

void setup() {
  pinMode(trigPin, OUTPUT); // Sets the trigPin as an OUTPUT
  pinMode(echoPin, INPUT); // Sets the echoPin as an INPUT
  Serial.begin(9600); // // For Serial Communication
}

void loop() {
  
  digitalWrite(trigPin, LOW); // Clears the trigPin condition
  delayMicroseconds(2); 
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  
  duration = pulseIn(echoPin, HIGH); // Reads the echoPin, returns the sound wave travel time in microseconds

  // Calculating the distance
  
  inchdistance = duration * 0.0133858 / 2; // To calculate the distance in inch
  cmdistance = duration * 0.034 / 2; // To calculate the distance in cm
  
  // Displays the distance on the Serial Monitor
  
  Serial.print("Distance: ");
  Serial.print(inchdistance);
  Serial.println(" inch");
  Serial.print(cmdistance);
  Serial.println(" cm");
}