Chao at 13:54, 28 November 2016

2016-11-28T13:54:06Z

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==Demo Code to show a single value as a web server ==
<syntaxhighlight lang="Arduino">

/*
* Web Server
*
* A simple web server that shows the value of the analog input pins.
*/
#include <Ethernet.h>
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
byte ip[] = { 192, 168, 0, 15 };

Server server(80);

void setup()
{
Ethernet.begin(mac, ip);
server.begin();
}

void loop()
{
Client client = server.available();
if (client) {
// an http request ends with a blank line
boolean current_line_is_blank = true;
while (client.connected()) {
if (client.available()) {
char c = client.read();
// if we've gotten to the end of the line (received a newline
// character) and the line is blank, the http request has ended,
// so we can send a reply
if (c == '\n' && current_line_is_blank) {
// send a standard http response header
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println();

// output the value of each analog input pin
client.print("welcome to electrodragon");
client.println("");
client.print("//*************************************");
client.println("");
client.print(www.electrodragon.com);
client.println("");
client.print("//*************************************");
client.println("");
for (int i = 0; i < 6; i++) {
client.print("analog input ");
client.print(i);
client.print(" is ");
client.print(analogRead(i));
client.println("");
}
break;
}
if (c == '\n') {
// we're starting a new line
current_line_is_blank = true;
} else if (c != '\r') {
// we've gotten a character on the current line
current_line_is_blank = false;
}
}
}
client.stop();
}
}

</syntaxhighlight>

== Documents ==
* [http://www.electrodragon.com/?p=8419 A demo tutorial here.]

[[category:Ethernet]]

W5100 Arduino Ethernet Shield - Revision history

Chao at 13:54, 28 November 2016