How to Make Distance Meter

 

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Code :- 

/*

Code Started

Distance metre using by ultrasonic sensor

Crated By Technical idEas YouTube

Channel Link :-  https://youtube.com/channel/UCCJyR_wnt3SxhErsSUP9Wrw

*/

#include <LiquidCrystal.h>

#define trigger 5

#define echo 6

 const int rs = 7, en = 9, d4 = 10, d5 = 11, d6 = 12, d7 = 13;

LiquidCrystal lcd(rs, en, d4, d5, d6, d7);

 

float time=0,distance=0;

 

void setup()

 

 

{

 

 

 lcd.begin(16,2);

 

 

 pinMode(trigger,OUTPUT);

 

 

 pinMode(echo,INPUT);

 

 

 lcd.print(" Ultra sonic");

 

 

 lcd.setCursor(0,1);

 

 

 lcd.print("Distance Meter");

 

 

 delay(2000);

 

 

 lcd.clear();

 

 

 lcd.print(" Technical idEas");

 

 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/100);

 

 lcd.print("m");

 

 delay(1000);

 

}

Ultrasonic Sensor Pin

VCC =5v

Trigger = 5

Eco = 6

GND =GND