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

^{Answer: Project:2-}

^Overview

^{This project involves:}

1. ^{Measuring the distance of an object using an ultrasonic distance sensor (28015 Ping).}
2. ^{Implementing a moving average filter to smooth out the distance data, reducing noise and high-frequency variations.}

^Goals

1. ^{Measure the distance to an object in inches using the Ultrasonic Distance Sensor (28015 Ping).}
2. ^{Apply a moving average filter to the measured distance values to eliminate high-frequency noise, providing more stable and reliable distance measurements.}

^{Key Highlights}

1. ^{Ultrasonic Distance Measurement:}
   • ^{The sensor emits an ultrasonic pulse that bounces back from an object.}
   • ^{The time taken for the pulse to travel to the object and return is used to calculate the distance.}
2. ^{Data Smoothing with Moving Average Filter:}
   • ^{The moving average filter smooths the sensor data by averaging a set number of previous readings.}
   • ^{The filter window determines how many data points are averaged, which affects the level of smoothing.}

^Deliverables

• ^{A program that measures the distance of an object using an ultrasonic distance sensor.}
• ^{A moving average filter implementation to smooth the sensor data, reducing high-frequency jitters.}

^{Expected Outcomes}

• ^{Students will gain knowledge about using the Ultrasonic Sensor (28015 Ping) to measure distance.}
• ^{Understanding of hardware connections involving Arduino and ultrasonic sensors.}
• ^{Practical experience in implementing and applying the Moving Average Filter Technique to remove noise from sensor data.}

^{Arduino Code Implementation}

^Requirements

• ^{Hardware: 2 Arduino boards (1 as master, 1 as slave), an ultrasonic sensor (28015 Ping), and connecting wires.}
• ^{Software: Arduino IDE.}

^{Code Description}

• ^{The ultrasonic sensor is used to measure distance.}
• ^{The distance data is then smoothed using a moving average filter.}

^Explanation

1. ^{Slave Node:}

   • ^{The ultrasonic sensor measures the distance by emitting a pulse and timing its return.}
   • ^{The measureDistance() function calculates the distance in inches.}
   • ^{The movingAverage() function smooths the data by averaging the last FILTER_SIZE measurements.}
   • ^{The smoothed data is sent to the master upon request via I2C.}

2. ^{Master Node:}

   • ^{The master requests data from the slave every second.}
   • ^{The received data is printed via serial for monitoring.}