Project 2 - Measuring the distance of an object using ultrasonic sensor and also smoothen the sensor data using moving average filter

Dear Sir/Mam,

Please find the attached.

int centi = 0;

long readUltrasonicDistance(int triggerPin, int echoPin)
{
pinMode(triggerPin, OUTPUT); // Clear the trigger
digitalWrite(triggerPin, LOW);
delayMicroseconds(2);
digitalWrite(triggerPin, HIGH);
delayMicroseconds(10);
digitalWrite(triggerPin, LOW);
pinMode(echoPin, INPUT);
// Reads the echo pin, and returns the sound wave travel time in microseconds
return pulseIn(echoPin, HIGH);
}

void setup()
{
Serial.begin(9600);
}

void loop()
{

centi = 0.01723 * readUltrasonicDistance(7, 7);// measure the ping time in cm for trigger and echo ,//0.01732*100*(1/29)/2)/100
Serial.print(centi);
Serial.println(" cm");
delay(100); // Wait for 100 millisecond(s)
}