code

  /*

 */
#include <SPI.h>
#include <Ethernet.h>

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

IPAddress server(192,168,1,101);  // 
//char server[] = "www.galgbacken.net";    // name address for Google (using DNS)

// Set the static IP address to use if the DHCP fails to assign
IPAddress ip(192, 168, 1, 179);

EthernetClient client;
// this constant won't change:
const int  buttonPin = 2;    // the pin that the pushbutton is attached to
const int ledPin = 4;       // the pin that the LED is attached to

//XXX "communications LED"
const int commLedPin = 5;


// Variables will change:
int buttonState = 0;         // current state of the button
int lastButtonState = 0;     // previous state of the button

void sendMillis(){
  time = millis();
  //prints time since program started
  Serial.println(time);
}

void setup() {
  // initialize the button pin as a input:
  pinMode(buttonPin, INPUT);
  // initialize the LED as an output:
  pinMode(ledPin, OUTPUT);
  
  // XXX initialize the commLedPin as an output:
  pinMode(commLedPin,OUTPUT);
  
  // initialize serial communication:
  Serial.begin(9600);


}



void loop() {

      //XXX This piece could be moved to setup()
     // start the Ethernet connection:
  if (Ethernet.begin(mac) == 0) {
    Serial.println("Failed to configure Ethernet using DHCP");
    // try to congifure using IP address instead of DHCP:
    Ethernet.begin(mac, ip);
  }
 
  
  // read the pushbutton input pin:
  buttonState = digitalRead(buttonPin);

  // compare the buttonState to its previous state
  if (buttonState != lastButtonState) {
    
    if (buttonState == HIGH) {
      // if the current state is HIGH then the button
      // wend from off to on:
      
      //XXX Immediately change the state of the ledPin, so that the user feels that it is snappy
      digitalWrite(ledPin, HIGH);
      Serial.println("on");

    
      //XXX Turn on the communications LED to show that you do some communications
      digitalWrite(commLedPin, HIGH);  
      Serial.println("... Sending HTTP command for on");
      sendMillis();
      client.connect(server,80);
      sendMillis();
      client.println("GET /control?cmd=GPIO,2,1 HTTP/1.1");
      sendMillis();
      client.println("Host:192.168.1.101");
      sendMillis();
      client.stop();
      Serial.println("... done Sending HTTP command for on");
      //XXX Turn on the communications LED to show that you do some communications
      digitalWrite(commLedPin, LOW);  

      
      
    } else {
      // if the current state is LOW then the button
      // wend from on to off:
      //XXX Immediately change the state of the ledPin, so that the user feels that it is snappy
      digitalWrite(ledPin, LOW);
      Serial.println("off");

      
      digitalWrite(commLedPin, HIGH);  
      Serial.println("... Sending HTTP command for on");
      sendMillis();
      client.connect(server,80);
      sendMillis();
      client.println("GET /control?cmd=GPIO,2,0 HTTP/1.1");
      sendMillis();
      client.println("Host:192.168.1.101");
      sendMillis();
      client.stop();
      sendMillis();
      Serial.println("... done Sending HTTP command for on");
    
    }
    // Delay a little bit to avoid bouncing
    delay(50);
  }
  // save the current state as the last state,
  //for next time through the loop
  lastButtonState = buttonState;


 

}