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

Dear sir/mam,

I have attached the code and the circuit and serial monitor output.

Thank you

CODE:-

float inches = 0;
float cm = 0;
long readUltrasonicDistance(int triggerPin, int echoPin)
{
pinMode(triggerPin, OUTPUT);                // Clear the trigger
digitalWrite(triggerPin, LOW);
delayMicroseconds(2);

 // Sets the trigger pin to HIGH state for 10 microseconds
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()
{
// measure the ping time in cm
cm = 0.01723 * readUltrasonicDistance(7, 7);

// convert to inches by dividing by 2.54
inches = (cm / 2.54);
Serial.print(inches);
Serial.print("in, ");
Serial.print(cm);
Serial.println("cm ");
delay(250);                          // Wait for 250 millisecond(s)
}