Distance measuring device using ultrasonic sensor

This is a very cool and worth exploring project, in which ultrasonic sensor has been used to make a distance measuring device.

Aug 9, 2022

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distance measurement using ult

distance measurement using ard

Components and supplies

Solderless Breadboard Full Size

Male/Male Jumper Wires

Male/Female Jumper Wires

USB-A to B Cable

Standard LCD - 16x2 White on Blue

Arduino UNO

Ultrasonic Sensor - HC-SR04 (Generic)

Apps and platforms

Arduino IDE

Project description

Code

Program of distance measuring device

c_cpp

The program is quite simple and understandable.

1/*16x2 LCD connection with Arduino Uno R3:
2 # LCD RS -->D13
3 # LCD  Enable(E)-->D12
4 # LCD DB4-->D11
5 # LCD DB5->D10
6 # LCD DB6-->D9
7 #  LCD DB7-->D8
8 # LCD RW--> GND
9 # LCD GND,V0,RW,LED(- CATHODE)-->pin to ground
10  # LCD VCC,LED(+ ANODE)--> +5V
11 
12 HC-SR04 Ultrasonic Sensor connection With  Arduino Uno R3:
13 #VCC--> +5V
14 #TRIG--> D7
15 #ECHO--> D6
16 #GND--> pin  to ground
17 */
18int distance,time,inch;
19#include<LiquidCrystal.h>
20LiquidCrystal  lcd(13, 12, 11, 10, 9, 8);//LCD INTERFACE(RS,E,DB4,DB5,DB6 AND DB7 resprectively)
21
22void  setup() {
23pinMode(7,OUTPUT);  //Trig Pin
24pinMode(6,INPUT);   //Echo Pin
25Serial.begin(9600);
26lcd.begin(16,2);
27lcd.setCursor(0,0);
28lcd.print("****WELCOME****");
29delay(2000);
30lcd.clear();  
31lcd.setCursor(3,0);
32lcd.print("DISTANCE");
33lcd.setCursor(0,1);
34lcd.print("MEASURING  DEVICE");
35delay(2000);
36lcd.clear(); 
37lcd.setCursor(0,0);
38lcd.print("  DEVICE STARTED ");
39delay(2000);
40lcd.clear(); 
41
42}
43
44void loop()  {
45digitalWrite(7,LOW); //Trig Off
46delayMicroseconds(20);
47digitalWrite(7,HIGH);  //Trig ON
48delayMicroseconds(20);
49digitalWrite(7,LOW); //Trig Off
50delayMicroseconds(20);
51  
52time = pulseIn(6, HIGH);//TO RECEIVE REFLECTED SIGNAL
53
54distance= time*0.0340/2;
55lcd.setCursor(0,1);  
56lcd.print(distance);
57lcd.print(" centimeter");
58
59inch=distance*0.3937;//centimeter  to inch conversion
60lcd.setCursor(0,0);
61lcd.print(inch);
62lcd.print(" inch");
63  
64Serial.println(time);  //To Print value on Serial Moniter 
65Serial.println(inch);
66Serial.println(distance);
67
68delay(100);
69}

/*16x2 LCD connection with Arduino Uno R3:
 # LCD RS -->D13
 # LCD  Enable(E)-->D12
 # LCD DB4-->D11
 # LCD DB5->D10
 # LCD DB6-->D9
 #  LCD DB7-->D8
 # LCD RW--> GND
 # LCD GND,V0,RW,LED(- CATHODE)-->pin to ground
  # LCD VCC,LED(+ ANODE)--> +5V
 
 HC-SR04 Ultrasonic Sensor connection With  Arduino Uno R3:
 #VCC--> +5V
 #TRIG--> D7
 #ECHO--> D6
 #GND--> pin  to ground
 */
int distance,time,inch;
#include<LiquidCrystal.h>
LiquidCrystal  lcd(13, 12, 11, 10, 9, 8);//LCD INTERFACE(RS,E,DB4,DB5,DB6 AND DB7 resprectively)

void  setup() {
pinMode(7,OUTPUT);  //Trig Pin
pinMode(6,INPUT);   //Echo Pin
Serial.begin(9600);
lcd.begin(16,2);
lcd.setCursor(0,0);
lcd.print("****WELCOME****");
delay(2000);
lcd.clear();  
lcd.setCursor(3,0);
lcd.print("DISTANCE");
lcd.setCursor(0,1);
lcd.print("MEASURING  DEVICE");
delay(2000);
lcd.clear(); 
lcd.setCursor(0,0);
lcd.print("  DEVICE STARTED ");
delay(2000);
lcd.clear(); 

}

void loop()  {
digitalWrite(7,LOW); //Trig Off
delayMicroseconds(20);
digitalWrite(7,HIGH);  //Trig ON
delayMicroseconds(20);
digitalWrite(7,LOW); //Trig Off
delayMicroseconds(20);
  
time = pulseIn(6, HIGH);//TO RECEIVE REFLECTED SIGNAL

distance= time*0.0340/2;
lcd.setCursor(0,1);  
lcd.print(distance);
lcd.print(" centimeter");

inch=distance*0.3937;//centimeter  to inch conversion
lcd.setCursor(0,0);
lcd.print(inch);
lcd.print(" inch");
  
Serial.println(time);  //To Print value on Serial Moniter 
Serial.println(inch);
Serial.println(distance);

delay(100);
}

Program of distance measuring device

c_cpp

The program is quite simple and understandable.

1/*16x2 LCD connection with Arduino Uno R3:
2 # LCD RS -->D13
3 # LCD   Enable(E)-->D12
4 # LCD DB4-->D11
5 # LCD DB5->D10
6 # LCD DB6-->D9
7 #   LCD DB7-->D8
8 # LCD RW--> GND
9 # LCD GND,V0,RW,LED(- CATHODE)-->pin to ground
10   # LCD VCC,LED(+ ANODE)--> +5V
11 
12 HC-SR04 Ultrasonic Sensor connection With   Arduino Uno R3:
13 #VCC--> +5V
14 #TRIG--> D7
15 #ECHO--> D6
16 #GND--> pin   to ground
17 */
18int distance,time,inch;
19#include<LiquidCrystal.h>
20LiquidCrystal   lcd(13, 12, 11, 10, 9, 8);//LCD INTERFACE(RS,E,DB4,DB5,DB6 AND DB7 resprectively)
21
22void   setup() {
23pinMode(7,OUTPUT);  //Trig Pin
24pinMode(6,INPUT);   //Echo Pin
25Serial.begin(9600);
26lcd.begin(16,2);
27lcd.setCursor(0,0);
28lcd.print("****WELCOME****");
29delay(2000);
30lcd.clear();   
31lcd.setCursor(3,0);
32lcd.print("DISTANCE");
33lcd.setCursor(0,1);
34lcd.print("MEASURING   DEVICE");
35delay(2000);
36lcd.clear(); 
37lcd.setCursor(0,0);
38lcd.print("   DEVICE STARTED ");
39delay(2000);
40lcd.clear(); 
41
42}
43
44void loop()   {
45digitalWrite(7,LOW); //Trig Off
46delayMicroseconds(20);
47digitalWrite(7,HIGH);   //Trig ON
48delayMicroseconds(20);
49digitalWrite(7,LOW); //Trig Off
50delayMicroseconds(20);
51   
52time = pulseIn(6, HIGH);//TO RECEIVE REFLECTED SIGNAL
53
54distance= time*0.0340/2;
55lcd.setCursor(0,1);   
56lcd.print(distance);
57lcd.print(" centimeter");
58
59inch=distance*0.3937;//centimeter   to inch conversion
60lcd.setCursor(0,0);
61lcd.print(inch);
62lcd.print(" inch");
63   
64Serial.println(time);  //To Print value on Serial Moniter 
65Serial.println(inch);
66Serial.println(distance);
67
68delay(100);
69}

/*16x2 LCD connection with Arduino Uno R3:
 # LCD RS -->D13
 # LCD   Enable(E)-->D12
 # LCD DB4-->D11
 # LCD DB5->D10
 # LCD DB6-->D9
 #   LCD DB7-->D8
 # LCD RW--> GND
 # LCD GND,V0,RW,LED(- CATHODE)-->pin to ground
   # LCD VCC,LED(+ ANODE)--> +5V
 
 HC-SR04 Ultrasonic Sensor connection With   Arduino Uno R3:
 #VCC--> +5V
 #TRIG--> D7
 #ECHO--> D6
 #GND--> pin   to ground
 */
int distance,time,inch;
#include<LiquidCrystal.h>
LiquidCrystal   lcd(13, 12, 11, 10, 9, 8);//LCD INTERFACE(RS,E,DB4,DB5,DB6 AND DB7 resprectively)

void   setup() {
pinMode(7,OUTPUT);  //Trig Pin
pinMode(6,INPUT);   //Echo Pin
Serial.begin(9600);
lcd.begin(16,2);
lcd.setCursor(0,0);
lcd.print("****WELCOME****");
delay(2000);
lcd.clear();   
lcd.setCursor(3,0);
lcd.print("DISTANCE");
lcd.setCursor(0,1);
lcd.print("MEASURING   DEVICE");
delay(2000);
lcd.clear(); 
lcd.setCursor(0,0);
lcd.print("   DEVICE STARTED ");
delay(2000);
lcd.clear(); 

}

void loop()   {
digitalWrite(7,LOW); //Trig Off
delayMicroseconds(20);
digitalWrite(7,HIGH);   //Trig ON
delayMicroseconds(20);
digitalWrite(7,LOW); //Trig Off
delayMicroseconds(20);
   
time = pulseIn(6, HIGH);//TO RECEIVE REFLECTED SIGNAL

distance= time*0.0340/2;
lcd.setCursor(0,1);   
lcd.print(distance);
lcd.print(" centimeter");

inch=distance*0.3937;//centimeter   to inch conversion
lcd.setCursor(0,0);
lcd.print(inch);
lcd.print(" inch");
   
Serial.println(time);  //To Print value on Serial Moniter 
Serial.println(inch);
Serial.println(distance);

delay(100);
}

Downloadable files

Schematic Digram of Distance measuring device

Refer to the shematic diagram, in which all the connections can be easily understood.

Schematic Digram of Distance measuring device

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