---
title: "ETHERNET SHIELD FOR ARDUINO - W5200(webserver)"
url: "https://maker.wiznet.io/irina/projects/ETHERNET-SHIELD-FOR-ARDUINO-W5200webserver/"
markdown_url: "https://maker.wiznet.io/irina/projects/ETHERNET-SHIELD-FOR-ARDUINO-W5200webserver/md"
type: "UCC: User Created Content"
author: "irina"
author_url: "https://maker.wiznet.io/irina/"
original_author: "irina"
original_url: "http://kedairobot.com/all-products/222-ethernet-shield-for-arduino-w5200.html"
published: "2022-03-02"
language: "en"
hardware: ["Analog input sensor", "Arduino UNO", "Arduino ethernet shield w5200"]
likes: 0
views: 211
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# ETHERNET SHIELD FOR ARDUINO - W5200(webserver)

> ETHERNET SHIELD FOR ARDUINO - W5200(webserver)

Original author: irina (source: http://kedairobot.com/all-products/222-ethernet-shield-for-arduino-w5200.html)

## Components

- **Analog input sensor** x 5
- **Arduino UNO** x 1 ([docs](https://www.farnell.com/datasheets/1682209.pdf))
- **Arduino ethernet shield w5200** x 1

## Article

- Analog inputs attached to pins A0 through A5

nstalling the library requires patching the current Ethernet library to add support for this chip: 1. Install W5200 library Download W5200 library,and find the Arduino library folder "(Arduino sketchbook folder)libraries".If there is old version Ethernet library(W5100), please delete it. And unzip the new library to the folder, then restart your Arduino IDE. 2. Using the W5200 library and evaluate existing Ethernet example. In the Arduino IDE, go to Files->Examples->Ethernet and open any example, compile and upload the file to Arduino board. 3. Note: libraries/Ethernet/Ethernet.h needs the following at line 10 instead of #define MAX_SOCK_NUM 4, since it doesn't #include "w5100.h" anymore.

- Source Code
  ```
/*
??Web?Server
??
?A?simple?web?server?that?shows?the?value?of?the?analog?input?pins.
?using?an?Arduino?Wiznet?Ethernet?shield.?
??
?Circuit:
?*?Ethernet?shield?attached?to?pins?10,?11,?12,?13
?*?Analog?inputs?attached?to?pins?A0?through?A5?(optional)
??
?created?18?Dec?2009
?by?David?A.?Mellis
?modified?9?Apr?2012
?by?Tom?Igoe
??
?*/
?
#include?<SPI.h>
#include?<Ethernet.h>
?
//Attention:?Official?SPI?port?use?"D10"?as?SS?interface.You?need?to?define?SS?pin?acording?to?the?actual?SS?wire?connection
?
////define?the?interface:?Dreamer?MEGA??X1?PORT
//#define?SS??53???//Gadgeteer?PIN?6
//#define?nRST??46??//Gadgeteer?PIN?4
//#define?nPWDN?45??//Gadgeteer?PIN?5
//#define?nINT?2??//Gadgeteer?PIN?3
?
//define?the?interface:?Dreamer?MEGA?X2?PORT
#define?SS????10???//Gadgeteer PIN 6
#define?nRST??8??//Gadgeteer PIN 4
#define?nPWDN?9??//Gadgeteer PIN 5
#define?nINT?3??//Gadgeteer PIN 3
?
//?Enter?a?MAC?address?and?IP?address?for?your?controller?below.
//?The?IP?address?will?be?dependent?on?your?local?network:
byte mac[] = { 
??0xDE,?0xAD,?0xBE,?0xEF,?0xFE,?0xED?};
IPAddress ip(192,168,0,217);
?
//?Initialize?the?Ethernet?server?library
//?with?the?IP?address?and?port?you?want?to?use?
//?(port?80?is?default?for?HTTP):
EthernetServer server(80);
?
void setup() {
?//Next setting parameter is very important!!!! If you don't have reliable reset setting, W5200 maybe will not work!!!!! //
???
??pinMode(SS,OUTPUT);  //Define the interfave :Dreamer MEGA X2 PORT Gadgeteer PIN 6 use SS
??pinMode(nRST,OUTPUT);
??pinMode(nPWDN,OUTPUT);
??pinMode(nINT,INPUT);  
??digitalWrite(nPWDN,LOW);  //enable power
??
??digitalWrite(nRST,LOW);  //Reset W5200
??delay(10);
??digitalWrite(nRST,HIGH);  
?delay(200);       // wait W5200 work
?/////////////////////////////////////////////////////////////
?// Open serial communications and wait for port to open:
??Serial.begin(9600);
???while (!Serial) {
????;?// wait for serial port to connect. Needed for Leonardo only
??}
?
?
??// start the Ethernet connection and the server:
??Ethernet.begin(mac, ip);
??server.begin();
??Serial.print("server is at ");
??Serial.println(Ethernet.localIP());
}
?
?
void loop() {
??// listen for incoming clients
??EthernetClient client = server.available();
??if (client) {
????Serial.println("new client");
????// an http request ends with a blank line
????boolean currentLineIsBlank = true;
????while (client.connected()) {
??????if (client.available()) {
????????char c = client.read();
????????Serial.write(c);
????????// if you've gotten to the end of the line (received a newline
????????// character) and the line is blank, the http request has ended,
????????// so you can send a reply
????????if (c == 'n' && currentLineIsBlank) {
??????????// send a standard http response header
??????????client.println("HTTP/1.1 200 OK");
??????????client.println("Content-Type: text/html");
??????????client.println("Connnection: close");
??????????client.println();
??????????client.println("<!DOCTYPE HTML>");
??????????client.println("<html>");
????????????????????// add a meta refresh tag, so the browser pulls again every 5 seconds:
??????????client.println("<meta http-equiv="refresh" content="5">");
??????????// output the value of each analog input pin
??????????for (int analogChannel = 0; analogChannel < 6; analogChannel++) {
????????????int sensorReading = analogRead(analogChannel);
????????????client.print("analog input ");
????????????client.print(analogChannel);
????????????client.print(" is ");
????????????client.print(sensorReading);
????????????client.println("<br />");       
??????????}
??????????client.println("</html>");
??????????break;
????????}
????????if (c == 'n') {
??????????// you're starting a new line
??????????currentLineIsBlank?=?true;
????????}?
????????else if (c != 'r') {
??????????// you've gotten a character on the current line
??????????currentLineIsBlank?=?false;
????????}
??????}
????}
????// give the web browser time to receive the data
????delay(1);
????// close the connection:
????client.stop();
????Serial.println("client disonnected");
??}
}
```

---

Source: https://maker.wiznet.io/irina/projects/ETHERNET-SHIELD-FOR-ARDUINO-W5200webserver/