Measure the body height with HC-SR04 and W5100

This project is related to the measurement of the body with HC-SR04 and the ethernet shield.

Dec 27, 2020

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environmental sensing

home automation

internet of things

Components and supplies

Arduino Ethernet Shield 2

Ethernet Cable, 1 m

Ultrasonic Sensor - HC-SR04 (Generic)

Arduino UNO

Apps and platforms

Arduino IDE

Project description

Code

The Code

arduino

1#include <Wire.h>       
2#include <SPI.h>
3#include <Ethernet.h>
4
5byte  mac[] = {
6 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };  //The mac adress
7
8byte  ip[] = {
9 192, 168, 178, 43 }; //The IP adress   
10
11byte gateway[] = {
12  192, 168, 178, 1 }; //The gateway      
13byte subnet[] = { 
14 255, 255, 255,  0 };   //The subnet-mask   
15
16 
17EthernetServer server(80); 
18
19const  int trigPin = 8;
20const int echoPin = 9;
21
22float duration, distance;
23float  body;
24
25void setup() {
26  pinMode(trigPin, OUTPUT);
27  pinMode(echoPin,  INPUT);
28
29 Wire.begin();      
30 Ethernet.begin(mac, ip);    
31 server.begin();
32}
33
34void  loop() {
35 EthernetClient client = server.available();
36  
37  digitalWrite(trigPin,  LOW);
38  delayMicroseconds(2);
39  digitalWrite(trigPin, HIGH);
40  delayMicroseconds(10);
41  digitalWrite(trigPin, LOW);
42
43  duration = pulseIn(echoPin, HIGH);
44  distance  = (duration*.0343)/2;
45  body = (181 - distance); // The height of the sensor  subtracted by the distance 
46                           //Note: The height must  be set like that of the sensor
47
48        if (client) {                  
49server.print("HTTP/1.0  200 OK\
\
50Server: arduino\
\
51Content-Type: text/html\
\
52\
\
53");
54client.println("<meta  http-equiv=\\"refresh\\" content=\\"7\\">"); //The website is updated every  7 seconds
55server.print("<HTML><HEAD><TITLE>");
56server.print("The height  of the body");
57server.print("</TITLE>");
58server.print("</HEAD><BODY>");
59server.print("<h2  align=center><font size=7><b>The height of the body </b></font></h2>");
60server.print("<center><font  size=5><b>The height of the body is </font>");
61server.print( body);
62server.print("cm.");  
63
64
65
66        delay(500);                                                                          
67       client.stop(); 
68        }
69  
70}
71

#include <Wire.h>       
#include <SPI.h>
#include <Ethernet.h>

byte  mac[] = {
 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };  //The mac adress

byte  ip[] = {
 192, 168, 178, 43 }; //The IP adress   

byte gateway[] = {
  192, 168, 178, 1 }; //The gateway      
byte subnet[] = { 
 255, 255, 255,  0 };   //The subnet-mask   

 
EthernetServer server(80); 

const  int trigPin = 8;
const int echoPin = 9;

float duration, distance;
float  body;

void setup() {
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin,  INPUT);

 Wire.begin();      
 Ethernet.begin(mac, ip);    
 server.begin();
}

void  loop() {
 EthernetClient client = server.available();
  
  digitalWrite(trigPin,  LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);

  duration = pulseIn(echoPin, HIGH);
  distance  = (duration*.0343)/2;
  body = (181 - distance); // The height of the sensor  subtracted by the distance 
                           //Note: The height must  be set like that of the sensor

        if (client) {                  
server.print("HTTP/1.0  200 OK\
\
Server: arduino\
\
Content-Type: text/html\
\
\
\
");
client.println("<meta  http-equiv=\\"refresh\\" content=\\"7\\">"); //The website is updated every  7 seconds
server.print("<HTML><HEAD><TITLE>");
server.print("The height  of the body");
server.print("</TITLE>");
server.print("</HEAD><BODY>");
server.print("<h2  align=center><font size=7><b>The height of the body </b></font></h2>");
server.print("<center><font  size=5><b>The height of the body is </font>");
server.print( body);
server.print("cm.");  



        delay(500);                                                                          
       client.stop(); 
        }
  
}

Downloadable files

circuit diagram

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