xport_03_correct_http_comms.pde

/*
Copyright (c) 2009 Abdel A Saleh - asaleh at the-experimenters (dot) com / http://twitter.com/abdels
This work is licensed under the Creative Commons BSD license, http://creativecommons.org/licenses/BSD.

Please include the NewSoftSerial library found here: http://arduiniana.org/libraries/newsoftserial
*/

#include <NewSoftSerial.h>

#define deviceResetPin 4

NewSoftSerial xport(2, 3);

byte incoming;

void setup()
{
  xport.begin(9600);
  Serial.begin(9600);
  
  pinMode(deviceResetPin, OUTPUT);
  pinMode(13, OUTPUT);
  digitalWrite(13, 0);
  
  resetDevice();
}

void loop()
{
  digitalWrite(13, 0);
  
  //Look for a 'D' before issuing a 'C' using the serial monitor
  //Look for a 'C' before issuing a 'G' using the serial monitor

  if(xport.available())
  {
    digitalWrite(13, 1);
    Serial.print((char)xport.read());
  }
  
  if(Serial.available())
  {
    incoming = Serial.read();
    
    if(incoming == 'R')
    {
      Serial.print("Resetting");
      digitalWrite(13, 1);
      resetDevice();
    }
    
    if(incoming == 'C')
    {
      Serial.print("Connecting");
      digitalWrite(13, 1);
      xport.print("C76.13.6.175/80\n"); //Delicious.com
    }
    
    if(incoming == 'G')
    {
      Serial.print("Do Get Request");
      digitalWrite(13, 1);

//      xport.print("GET / HTTP/1.1\n"); //BAD
      xport.println("GET / HTTP/1.1"); //GOOD
        
        // OR Use the following as one sequence
//      xport.print("GET / HTTP/1.1");//GOOD
//      xport.print(13, BYTE); //CR
//      xport.print(10, BYTE); //LN

//      xport.print("Host: delicious.com\n\n");  //BAD
      xport.println("Host: delicious.com\r\n");//GOOD

        // OR Use the following as one sequence
//      xport.print("Host: delicious.com");//GOOD
//      xport.print(13, BYTE); //CR
//      xport.print(10, BYTE); //LN
//      xport.print(13, BYTE); //CR
//      xport.print(10, BYTE); //LN
    }
  }
}

/*
  Take the Lantronix device's reset pin low to reset it
 */
void resetDevice() {
  digitalWrite(deviceResetPin, LOW);
  delay(50);
  digitalWrite(deviceResetPin, HIGH);
  // pause to let Lantronix device boot up:
  delay(1000);
}