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

Q.)

ANS-

int trigpin=11

int ecopin=12

long duration, cm,inches;

long sum=0

long avg;

inti;

void setup()

{

//serial port begain

serial begain (9600);

pinmode(trigpin,output);

pin mode(echopin,input);

}

void loop

{

//The sensor is trigred by aHigh pluse of 10 or more microsecond.

//Give a short Low plusebrforehand to ensure a clean High pluse.

digiotal write(trig pin,LOW);

delay microsecond(10);

digitalwrite (trigpin LOW);

pinmode(echopin input);

duration=plusen(echopin high);

cm= (duration/2)29.1

inches=(duration/2)/74;

for(i=0,i<5,i++);

{

sum=sum+inches;

avg=sum/5;

}

serial.print(avg);

serial.print("avg");

serial.print(cm);

serial.print("cm")'

serial.print.n();

serial.print(inches);

serial.print("in");

serial.print();

delay(250);

}

circuit diagram

Ultrasonic Sensor Arduino Circuit Diagram