ตัวอย่าง 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>
// Enter a MAC address and IP address for controller below.
// The IP address will be dependent on local network:
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0x2D };
byte gateway[] = { 192, 168, 1, 1 }; // <------- PUT ROUTERS IP Address to which shield is connected Here
byte subnet[] = { 255, 255, 255, 0 }; // <------- It will be as it is in most of the cases
IPAddress ip(192,168,1,199);
// Initialize the Ethernet server library
// with the IP address and port you want to use
// (port 80 is default for HTTP):
EthernetServer server(80);
#define RELAY_CH1 23
#define RELAY_CH2 25
#define RELAY_CH3 27
#define RELAY_CH4 29
#define RELAY_CH5 31
#define RELAY_CH6 33
#define RELAY_CH7 22
#define RELAY_CH8 24
String readString;
void setup() {
pinMode(RELAY_CH1, OUTPUT);
digitalWrite(RELAY_CH1, HIGH); // switch on LED1
pinMode(RELAY_CH2, OUTPUT);
digitalWrite(RELAY_CH2, HIGH); // switch on LED2
pinMode(RELAY_CH3, OUTPUT);
digitalWrite(RELAY_CH3, HIGH); // switch on LED3
pinMode(RELAY_CH4, OUTPUT);
digitalWrite(RELAY_CH4, HIGH); // switch on LED4
pinMode(RELAY_CH5, OUTPUT);
digitalWrite(RELAY_CH5, HIGH); // switch on LED5
pinMode(RELAY_CH6, OUTPUT);
digitalWrite(RELAY_CH6, HIGH); // switch on LED6
pinMode(RELAY_CH7, OUTPUT);
digitalWrite(RELAY_CH7, HIGH); // switch on LED7
pinMode(RELAY_CH8, OUTPUT);
digitalWrite(RELAY_CH8, HIGH); // switch on LED8
// 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();
if (readString.length() < 100) {
//store characters to string
readString += c; //Serial.print(c);
}
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("Connection: close"); // the connection will be closed after completion of the response
client.println("Refresh: 5"); // refresh the page automatically every 5 sec
client.println();
client.println("<!DOCTYPE HTML>");
client.println("<html>");
client.println("<HEAD>");
client.println("<meta name='apple-mobile-web-app-capable' content='yes' />");
client.println("<meta name='apple-mobile-web-app-status-bar-style' content='black-translucent' />");
//client.println("<link rel=\"stylesheet\" type=\"text/css\" href=\"
http://www.digital2u.net/autohome.css\" />");
client.println("<meta http-equiv=\"refresh\" content=\"5;url=http://192.168.1.199/\"/>" );
client.println("</HEAD>");
client.println("<body bgcolor=\"#D0D0D0\">");
//client.println("<hr/>");
//client.println("<hr/>");
//client.println("<h4><center><img border=\"2\" src=\"
https://lh3.googleusercontent.com/-C6BoJrRUFko/UEUFeCwkvdI/AAAAAAAAAOc/E7gcYvPV6r4/s960/Logo.jpg\" /></center></h4>");
//client.println("<hr/>");
//client.println("<hr/>");
client.print("<center> <p> <h1>Welcome to Arduino Home Control V0.25 (Active Low) </h1></p> ");
//client.println("<br />");
//client.println("<br />");
// Relay Status Display
client.println("<center>");
client.println("<table border=\"5\">");
client.println("<tr>");
if (!digitalRead(RELAY_CH1))
{
client.print("<td> <p style=\"font-family:arial;color:black;font-size:26px;\">Device 1.</p><p style=\"font-family:arial;color:green;font-size:35px;\">ON</p> </td>");
}
else
{
client.print("<td> <p style=\"font-family:arial;color:black;font-size:26px;\">Device 1.</p><p style=\"font-family:arial;color:red;font-size:35px;\">OFF</p></td>");
}
if (!digitalRead(RELAY_CH2))
{
client.print("<td> <p style=\"font-family:arial;color:black;font-size:26px;\">Device 2.</p><p style=\"font-family:arial;color:green;font-size:35px;\">ON</p></td>");
}
else
{
client.print("<td> <p style=\"font-family:arial;color:black;font-size:26px;\">Device 2.</p><p style=\"font-family:arial;color:red;font-size:35px;\">OFF</p></td>");
}
if (!digitalRead(RELAY_CH3))
{
client.print("<td><p style=\"font-family:arial;color:black;font-size:26px;\">Device 3.</p><p style=\"font-family:arial;color:green;font-size:35px;\">ON</p></td>");
}
else
{
client.print("<td><p style=\"font-family:arial;color:black;font-size:26px;\">Device 3.</p><p style=\"font-family:arial;color:red;font-size:35px;\">OFF</p></td>");
}
if (!digitalRead(RELAY_CH4))
{
client.print("<td><p style=\"font-family:arial;color:black;font-size:26px;\">Device 4.</p><p style=\"font-family:arial;color:green;font-size:35px;\">ON</p></td>");
}
else
{
client.print("<td><p style=\"font-family:arial;color:black;font-size:26px;\">Device 4.</p><p style=\"font-family:arial;color:red;font-size:35px;\">OFF</p></td>");
}
if (!digitalRead(RELAY_CH5))
{
client.print("<td><p style=\"font-family:arial;color:black;font-size:26px;\">Device 5.</p><p style=\"font-family:arial;color:green;font-size:35px;\">ON</p></td>");
}
else
{
client.print("<td><p style=\"font-family:arial;color:black;font-size:26px;\">Device 5.</p><p style=\"font-family:arial;color:red;font-size:35px;\">OFF</p></td>");
}
if (!digitalRead(RELAY_CH6))
{
client.print("<td><p style=\"font-family:arial;color:black;font-size:26px;\">Device 6.</p><p style=\"font-family:arial;color:green;font-size:35px;\">ON</p></td>");
}
else
{
client.print("<td><p style=\"font-family:arial;color:black;font-size:26px;\">Device 6.</p><p style=\"font-family:arial;color:red;font-size:35px;\">OFF</p></td>");
}
if (!digitalRead(RELAY_CH7))
{
client.print("<td><p style=\"font-family:arial;color:black;font-size:26px;\">Device 7.</p><p style=\"font-family:arial;color:green;font-size:35px;\">ON</p></td>");
}
else
{
client.print("<td><p style=\"font-family:arial;color:black;font-size:26px;\">Device 7.</p><p style=\"font-family:arial;color:red;font-size:35px;\">OFF</p></td>");
}
if (!digitalRead(RELAY_CH8))
{
client.print("<td><p style=\"font-family:arial;color:black;font-size:26px;\">Device 8.</p><p style=\"font-family:arial;color:green;font-size:35px;\">ON</p></td>");
}
else
{
client.print("<td><p style=\"font-family:arial;color:black;font-size:26px;\">Device 8.</p><p style=\"font-family:arial;color:red;font-size:35px;\">OFF</p></td>");
}
client.println("</tr>");
client.println("</table>");
client.println("</center>");
client.println("<br />");
/* Relay Control Code */
client.println("<a href=\"/?relay1On\"\"> <button style=\"width:360px;height:120px\"> <font size=\"7\"; color:red ;>Device 1 ON </font> </button> </a> ");
client.println("<a href=\"/?relay1off\"\"> <button style=\"width:360px;height:120px\"> <font size=\"7\">Device 1 OFF </font> </button> </a> <br />");
client.println("<br />");
client.println("<a href=\"/?relay2on\"\"> <button style=\"width:360px;height:120px\"> <font size=\"7\">Device 2 ON </font> </button> </a> ");
client.println("<a href=\"/?relay2off\"\"> <button style=\"width:360px;height:120px\"> <font size=\"7\">Device 2 OFF </font> </button> </a> <br />");
client.println("<br />");
client.println("<a href=\"/?relay3on\"\"> <button style=\"width:360px;height:120px\"> <font size=\"7\">Device 3 ON </font> </button> </a> ");
client.println("<a href=\"/?relay3off\"\"> <button style=\"width:360px;height:120px\"> <font size=\"7\">Device 3 OFF </font> </button> </a> <br />");
client.println("<br />");
client.println("<a href=\"/?relay4on\"\"> <button style=\"width:360px;height:120px\"> <font size=\"7\">Device 4 ON </font> </button> </a> ");
client.println("<a href=\"/?relay4off\"\"> <button style=\"width:360px;height:120px\"> <font size=\"7\">Device 4 OFF </font> </button> </a> <br />");
client.println("<br />");
client.println("<a href=\"/?relay5on\"\"> <button style=\"width:360px;height:120px\"> <font size=\"7\">Device 5 ON </font> </button> </a> ");
client.println("<a href=\"/?relay5off\"\"><button style=\"width:360px;height:120px\"> <font size=\"7\">Device 5 OFF </font> </button> </a> <br />");
client.println("<br />");
client.println("<a href=\"/?relay6on\"\"><button style=\"width:360px;height:120px\"> <font size=\"7\">Device 6 ON </font> </button> </a> ");
client.println("<a href=\"/?relay6off\"\"><button style=\"width:360px;height:120px\"> <font size=\"7\">Device 6 OFF </font> </button> </a> <br />");
client.println("<br />");
client.println("<a href=\"/?relay7on\"\"><button style=\"width:360px;height:120px\"> <font size=\"7\">Device 7 ON </font> </button> </a> ");
client.println("<a href=\"/?relay7off\"\"><button style=\"width:360px;height:120px\"> <font size=\"7\">Device 7 OFF </font> </button> </a> <br />");
client.println("<br />");
client.println("<a href=\"/?relay8on\"\"><button style=\"width:360px;height:120px\"> <font size=\"7\">Device 8 ON </font> </button> </a> ");
client.println("<a href=\"/?relay8off\"\"><button style=\"width:360px;height:120px\"> <font size=\"7\">Device 8 OFF </font> </button> </a> <br />");
client.println("<br />");
// control arduino pin via ethernet Start //
if(readString.indexOf("?relay1on") >0)//checks for on
{
digitalWrite(RELAY_CH1, LOW); // set pin 4 high
//Serial.println("Led On");
client.println("<link rel='apple-touch-icon' href='
http://chriscosma.co.cc/on.png' />");
//client.println("Light 1 Is On");
client.println("<br />");
}
else{
if(readString.indexOf("?relay1off") >0)//checks for off
{
digitalWrite(RELAY_CH1, HIGH); // set pin 4 low
//Serial.println("Led Off");
client.println("<link rel='apple-touch-icon' href='
http://chriscosma.co.cc/off.png' />");
//client.println("Light 1 Is Off");
client.println("<br />");
}
}
if(readString.indexOf("?relay2on") >0)//checks for on
{
digitalWrite(RELAY_CH2, LOW); // set pin 4 high
//Serial.println("Led On");
client.println("<link rel='apple-touch-icon' href='
http://chriscosma.co.cc/on.png' />");
//client.println("Light 1 Is On");
client.println("<br />");
}
else{
if(readString.indexOf("?relay2off") >0)//checks for off
{
digitalWrite(RELAY_CH2, HIGH); // set pin 4 low
//Serial.println("Led Off");
client.println("<link rel='apple-touch-icon' href='
http://chriscosma.co.cc/off.png' />");
//client.println("Light 1 Is Off");
client.println("<br />");
}
}
if(readString.indexOf("?relay3on") >0)//checks for on
{
digitalWrite(RELAY_CH3, LOW); // set pin 4 high
//Serial.println("Led On");
client.println("<link rel='apple-touch-icon' href='
http://chriscosma.co.cc/on.png' />");
//client.println("Light 1 Is On");
client.println("<br />");
}
else{
if(readString.indexOf("?relay3off") >0)//checks for off
{
digitalWrite(RELAY_CH3, HIGH); // set pin 4 low
//Serial.println("Led Off");
client.println("<link rel='apple-touch-icon' href='
http://chriscosma.co.cc/off.png' />");
//client.println("Light 1 Is Off");
client.println("<br />");
}
}
if(readString.indexOf("?relay4on") >0)//checks for on
{
digitalWrite(RELAY_CH4, LOW); // set pin 4 high
//Serial.println("Led On");
client.println("<link rel='apple-touch-icon' href='
http://chriscosma.co.cc/on.png' />");
//client.println("Light 1 Is On");
client.println("<br />");
}
else{
if(readString.indexOf("?relay4off") >0)//checks for off
{
digitalWrite(RELAY_CH4, HIGH); // set pin 4 low
//Serial.println("Led Off");
client.println("<link rel='apple-touch-icon' href='
http://chriscosma.co.cc/off.png' />");
//client.println("Light 1 Is Off");
client.println("<br />");
}
}
if(readString.indexOf("?relay5on") >0)//checks for on
{
digitalWrite(RELAY_CH5, LOW); // set pin 4 high
//Serial.println("Led On");
client.println("<link rel='apple-touch-icon' href='
http://chriscosma.co.cc/on.png' />");
//client.println("Light 1 Is On");
client.println("<br />");
}
else{
if(readString.indexOf("?relay5off") >0)//checks for off
{
digitalWrite(RELAY_CH5, HIGH); // set pin 4 low
//Serial.println("Led Off");
client.println("<link rel='apple-touch-icon' href='
http://chriscosma.co.cc/off.png' />");
//client.println("Light 1 Is Off");
client.println("<br />");
}
}
if(readString.indexOf("?relay6on") >0)//checks for on
{
digitalWrite(RELAY_CH6, LOW); // set pin 4 high
//Serial.println("Led On");
client.println("<link rel='apple-touch-icon' href='
http://chriscosma.co.cc/on.png' />");
//client.println("Light 1 Is On");
client.println("<br />");
}
else{
if(readString.indexOf("?relay6off") >0)//checks for off
{
digitalWrite(RELAY_CH6, HIGH); // set pin 4 low
//Serial.println("Led Off");
client.println("<link rel='apple-touch-icon' href='
http://chriscosma.co.cc/off.png' />");
//client.println("Light 1 Is Off");
client.println("<br />");
}
}
if(readString.indexOf("?relay7on") >0)//checks for on
{
digitalWrite(RELAY_CH7, LOW); // set pin 4 high
//Serial.println("Led On");
client.println("<link rel='apple-touch-icon' href='
http://chriscosma.co.cc/on.png' />");
//client.println("Light 1 Is On");
client.println("<br />");
}
else{
if(readString.indexOf("?relay7off") >0)//checks for off
{
digitalWrite(RELAY_CH7, HIGH); // set pin 4 low
//Serial.println("Led Off");
client.println("<link rel='apple-touch-icon' href='
http://chriscosma.co.cc/off.png' />");
//client.println("Light 1 Is Off");
client.println("<br />");
}
}
if(readString.indexOf("?relay8on") >0)//checks for on
{
digitalWrite(RELAY_CH8, LOW); // set pin 4 high
//Serial.println("Led On");
client.println("<link rel='apple-touch-icon' href='
http://chriscosma.co.cc/on.png' />");
//client.println("Light 1 Is On");
client.println("<br />");
}
else{
if(readString.indexOf("?relay8off") >0)//checks for off
{
digitalWrite(RELAY_CH8, HIGH); // set pin 4 low
//Serial.println("Led Off");
client.println("<link rel='apple-touch-icon' href='
http://chriscosma.co.cc/off.png' />");
//client.println("Light 1 Is Off");
client.println("<br />");
}
}
// INPUT
// 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("<hr> <p> By <a href=\"
http://androidcontrol.blogspot.com\"></p><p style=\"font-family:arial;color:blue;font-size:20px;\">Android Control Blogspot</p></a>");
readString="";
client.println("</body>");
client.println("</html>");
break;
}// if ( c == \n )
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);
//client.println("<meta http-equiv=\"refresh\" content=\"10;url=http://192.168.1.199/\"/>" );
// close the connection:
client.stop();
Serial.println("client disonnected");
}//if(Client)
}//Loop
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