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

Overview of the Project:

In this project the implementation of code for “Measuring distance of an object using ultrasonic distance sensor (28015 Ping) and also smoothen the sensor data using moving average filter”.

Goals:

• Measuring the distance in terms of inches of an object using Ultrasonic Distance Sensor (28015 Ping).
• The sensor data is smoothened by using Moving average filter technique to eliminate the high frequency variations from the sensor data.

Key Highlights of the Project:

• Measuring the distance travelled by the wave to the object and gets bounced back from the object to sensor.
• Smoothening the sensor data by moving average filter technique, the filter has a window of certain size. That window determines that how many data the filter can take.

Code:-

#include <LiquidCrystal.h> //Header file for LCD
#define trigger 18//Connecting trigger pin of Ultrasonic sensor to Pin no 18 of Arduino
#define echo 19//Connecting echo pin of Ultrasonic sensor to Pin no 19 of Arduino
LiquidCrystal lcd(11,12,2,3,4,5);//Connecting LCD pin with Arduino
float time=0,distance=0;//Declaring variables
void setup()
{
Serial.begin(9600);
lcd.begin(16,2);
pinMode(trigger,OUTPUT);//Setting trigger as OUTPUT
pinMode(echo,INPUT);//Setting eco as input
lcd.print(" Ultra sonic");
lcd.setCursor(0,1);
lcd.print("Distance Meter");
delay(2000);
lcd.clear();
lcd.print(" Circuit Digest");
delay(2000);

}
void loop()
{
lcd.clear();
digitalWrite(trigger,LOW);
delayMicroseconds(2);
digitalWrite(trigger,HIGH);
delayMicroseconds(10);
digitalWrite(trigger,LOW);
delayMicroseconds(2);
time=pulseIn(echo,HIGH);
distance=time*340/20000;
lcd.clear();
lcd.print("Distance:");
lcd.print(distance);
lcd.print("cm");
lcd.setCursor(0,1);
lcd.print("Distance:");
lcd.print(distance/1000);
lcd.print("m");
Serial.println(distance);
delay(1000);
}

Note:Here in the serial monitor we sre getting the distance and in the LCD we are getting the filtering process of signals.