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

Measuring the distance of an object using an ultrasonic sensor and also smoothening the sensor data using a moving average filter

Code:

Master Code 
#include// we are getting the I2C protocol
const int pin =7;//seting pin 7 as signal pin
long sum =0;//declaring all the global variable
long avg;
byte send;
void setup()
{
  Serial.begin(9600);
   Serial.begin(9600);//baud rate for transmission
  Wire.begin();//begin communication for i2c in a4 and a5
}
void loop()
{
   //Wire.requestFrom(8,1);
  long time ,inch ,cm;
  long result;
  pinMode(pin,OUTPUT);//makeing pin 7 as output
  digitalWrite(pin,LOW);//making low for some time
  delayMicroseconds(2);
  digitalWrite(pin,HIGH);//making that pin has high
  delayMicroseconds(2);
  digitalWrite(pin,LOW);//making it has low
  pinMode(pin,INPUT);
  time=pulseIn(pin,HIGH);//getting the retrun wave noted in the time
  result=conversion(time);//calling the function
  cm=(result/2)/29.1;//value from function part are calculated for the CM
  inch=(result/2)/74;//value from function part are calculated for the Inches
  
  Serial.println("inch");
   Serial.println(inch);
  //Serial.println("inch");
  // Serial.println(inch);
  // Serial.println("cm");
  // Serial.println(cm);
  
  Wire.beginTransmission(8);
  Wire.write(inch);//Transmitting the value to slave
  Wire.endTransmission();
  delay(500);
}
long conversion( long time)
{
  int a[5];//intializing the variable
  int n;
  int av=0;
  while(n<=5)
  {
    a[n] = time;//storing the value in array upto window size as 5
    n++;
  }
  for(int i=0;i<5;i++)
  {
    av=av+a[i];
  }
  av=av/5;//geeting the average value
  return av;//returning that value
}

Slave Code:

#include//getting the I2C library file
#include//getting the lcd library file
LiquidCrystal lcd(2,7,8,9,10,11);//(RS,EN,8,9,10,11)
byte slaveValue  =0;//intiallizing the global value
void setup()
{
  lcd.begin(16,2);
  Serial.begin(9600);
  Wire.begin(8);//Transmission begins command
  Wire.onReceive(receiveEvent);//intruppt for receiving the data
}
void loop()
{
 
  //lcd.setCursor(0,1);
 // lcd.print("Slave Received");
}
void receiveEvent(int howMany)
{
  slaveValue = Wire.read();//reading data from the Master
  lcd.setCursor(0,0);//positioning the cursor
  lcd.print("Slave Received");//printing the value in the lcd
  lcd.setCursor(0,1);
  lcd.print(slaveValue);//printing the master value in LCD
  Serial.println("slave");
  Serial.println(slaveValue);
  delay(1000);
}

Output:

Link:

https://www.tinkercad.com/things/7GtmFIKJocV-tremendous-juttuli-migelo/editel?sharecode=5hAPuCw66rAwciC1Vfhy8fM9LFhFcwo0jBobHexRM8A