Proximity Sensor with LCD

1#include <LiquidCrystal.h>
2
3LiquidCrystal lcd(9,8,4,5,6,7);//(rs,e,d4,d5,d6,d7)
4
5const
6  int trigPin = 3, echoPin = 2;
7long duration;
8int distanceCM, distanceINCH;
9
10void
11  setup() {
12  lcd.begin(16,2);
13  pinMode(trigPin, OUTPUT);
14  pinMode(echoPin,
15  INPUT);
16
17}
18
19void loop() {lcd.clear();delay(10);
20  digitalWrite(trigPin,
21  LOW); delayMicroseconds(2);
22  digitalWrite(trigPin, HIGH); delayMicroseconds(10);
23
24  digitalWrite(trigPin, LOW);
25  duration = pulseIn(echoPin, HIGH);//determine
26  duration to calculate distance 
27  distanceCM = duration*0.034/2;
28  distanceINCH
29  = duration*0.0133/2;
30
31  lcd.setCursor(0,0);
32  lcd.print("Distance: ");
33
34  lcd.print(distanceCM); lcd.print(" cm");delay(10);
35  
36  lcd.setCursor(0,1);
37
38  lcd.print("Distance: ");
39  lcd.print(distanceINCH); lcd.print("inch");delay(100);
40
41  
42  if(distanceINCH>99){//for displaying purposes
43      lcd.clear(); delay(10);
44
45    }
46  
47}

1#include <LiquidCrystal.h>
2
3LiquidCrystal lcd(9,8,4,5,6,7);//(rs,e,d4,d5,d6,d7)
4
5const  int trigPin = 3, echoPin = 2;
6long duration;
7int distanceCM, distanceINCH;
8
9void  setup() {
10  lcd.begin(16,2);
11  pinMode(trigPin, OUTPUT);
12  pinMode(echoPin,  INPUT);
13
14}
15
16void loop() {lcd.clear();delay(10);
17  digitalWrite(trigPin,  LOW); delayMicroseconds(2);
18  digitalWrite(trigPin, HIGH); delayMicroseconds(10);
19  digitalWrite(trigPin, LOW);
20  duration = pulseIn(echoPin, HIGH);//determine  duration to calculate distance 
21  distanceCM = duration*0.034/2;
22  distanceINCH  = duration*0.0133/2;
23
24  lcd.setCursor(0,0);
25  lcd.print("Distance: ");
26  lcd.print(distanceCM); lcd.print(" cm");delay(10);
27  
28  lcd.setCursor(0,1);
29  lcd.print("Distance: ");
30  lcd.print(distanceINCH); lcd.print("inch");delay(100);
31  
32  if(distanceINCH>99){//for displaying purposes
33      lcd.clear(); delay(10);
34    }
35  
36}