Similar to the previous single colour LED example this is for an RGB led, we use pin 6, 7 and 8
Code
//simple button GET server code to control servo and arduino pin 6
//for use with IDE 1.0
//open serial monitor to see what the arduino receives
//use the \ slash to escape the ” in the html
//for use with W5100 based ethernet shields
//Powering a servo from the arduino usually DOES NOT WORK.
//note that the below bug fix may be required
// http://code.google.com/p/arduino/issues/detail?id=605
#include <SPI.h>
#include <Ethernet.h>
#include <Servo.h>
Servo myservo; // create servo object to control a servo
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; //physical mac address
byte ip[] = { 192, 168, 1, 177 }; // ip in lan
byte gateway[] = { 192, 168, 1, 1 }; // internet access via router
byte subnet[] = { 255, 255, 255, 0 }; //subnet mask
EthernetServer server(80); //server port
String readString;
//////////////////////
void setup(){
pinMode(6, OUTPUT); //pin selected to control
pinMode(7, OUTPUT); //pin selected to control
pinMode(8, OUTPUT); //pin selected to control
//start Ethernet
Ethernet.begin(mac, ip, gateway, subnet);
server.begin();
//the pin for the servo co
//enable serial data print
Serial.begin(9600);
Serial.println(“server LED test 1.0”); // so I can keep track of what is loaded
}
void loop(){
// Create a client connection
EthernetClient client = server.available();
if (client)
{
while (client.connected())
{
if (client.available())
{
char c = client.read();
//read char by char HTTP request
if (readString.length() < 100)
{
//store characters to string
readString += c;
//Serial.print(c);
}
//if HTTP request has ended
if (c == ‘\n’) {
///////////////
Serial.println(readString); //print to serial monitor for debuging
client.println(“HTTP/1.1 200 OK”); //send new page
client.println(“Content-Type: text/html”);
client.println();
client.println(“<HTML>”);
client.println(“<HEAD>”);
client.println(“<TITLE>RGB LED on/off</TITLE>”);
client.println(“</HEAD>”);
client.println(“<BODY>”);
client.println(“<H1>RGB LED On/Off</H1>”);
client.println(“<hr />”);
client.println(“<br />”);
client.println(“<a href=\”/?blueon\”\”>Turn On blue</a>”);
client.println(“<a href=\”/?blueoff\”\”>Turn Off blue</a><br />”);
client.println(“<br />”);
client.println(“<a href=\”/?redon\”\”>Turn On red</a>”);
client.println(“<a href=\”/?redoff\”\”>Turn Off red</a><br />”);
client.println(“<br />”);
client.println(“<a href=\”/?greenon\”\”>Turn On green</a>”);
client.println(“<a href=\”/?greenoff\”\”>Turn Off green</a><br />”);
client.println(“</BODY>”);
client.println(“</HTML>”);
delay(1);
//stopping client
client.stop();
///////////////////// control arduino pin 6
if(readString.indexOf(“?blueon”) >0)//checks for on
{
digitalWrite(6, LOW); // set pin 6 low
Serial.println(“Blue On”);
}
else
{
if(readString.indexOf(“?blueoff”) >0)//checks for off
{
digitalWrite(6, HIGH); // set pin 6 low
Serial.println(“Blue off”);
}
}
///////////////////// control arduino pin 7
if(readString.indexOf(“?redon”) >0)//checks for on
{
digitalWrite(7, LOW); // set pin 6 low
Serial.println(“Red On”);
}
else
{
if(readString.indexOf(“?redoff”) >0)//checks for off
{
digitalWrite(7, HIGH); // set pin 6 low
Serial.println(“Red off”);
}
}
///////////////////// control arduino pin 8
if(readString.indexOf(“?greenon”) >0)//checks for on
{
digitalWrite(8, LOW); // set pin 6 low
Serial.println(“Green On”);
}
else
{
if(readString.indexOf(“?greenoff”) >0)//checks for off
{
digitalWrite(8, HIGH); // set pin 6 low
Serial.println(“Green off”);
}
}
//clearing string for next read
readString=””;
}
}
}
}
}