Lab_interaccio/2014/CC3000/CC3000.ino

/****************************************************************
WebClient.ino
CC3000 WebClient Test
Shawn Hymel @ SparkFun Electronics
March 1, 2014
https://github.com/sparkfun/SFE_CC3000_Library

Manually connects to a WiFi network and performs an HTTP GET
request on a web page. Prints the contents of the page to
the serial console.

The security mode is defined by one of the following:
WLAN_SEC_UNSEC, WLAN_SEC_WEP, WLAN_SEC_WPA, WLAN_SEC_WPA2

Hardware Connections:
 
 Uno Pin    CC3000 Board    Function
 
 +5V        VCC or +5V      5V
 GND        GND             GND
 2          INT             Interrupt
 7          EN              WiFi Enable
 10         CS              SPI Chip Select
 11         MOSI            SPI MOSI
 12         MISO            SPI MISO
 13         SCK             SPI Clock

Resources:
Include SPI.h, SFE_CC3000.h, and SFE_CC3000_Client.h

Development environment specifics:
Written in Arduino 1.0.5
Tested with Arduino UNO R3

This code is beerware; if you see me (or any other SparkFun 
employee) at the local, and you've found our code helpful, please
buy us a round!

Distributed as-is; no warranty is given.
****************************************************************/

#include <SPI.h>
#include "SFE_CC3000.h"
#include "SFE_CC3000_Client.h"

// Pins
#define CC3000_INT      2   // Needs to be an interrupt pin (D2/D3)
#define CC3000_EN       7   // Can be any digital pin
#define CC3000_CS       10  // Preferred is pin 10 on Uno

// Connection info data lengths
#define IP_ADDR_LEN     4   // Length of IP address in bytes

// Constants
char ap_ssid[] = "hangar_lab";                  // SSID of network
char ap_password[] = "labinteractius";          // Password of network
unsigned int ap_security = WLAN_SEC_WPA2; // Security of network
unsigned int timeout = 1000;             // Milliseconds
char server[] = "data.smartcitizen.me";        // Remote host site

// Global Variables
SFE_CC3000 wifi = SFE_CC3000(CC3000_INT, CC3000_EN, CC3000_CS);
SFE_CC3000_Client client = SFE_CC3000_Client(wifi);

void setup() {
  
  ConnectionInfo connection_info;
  int i;
  delay(2000);
  // Initialize Serial port
  Serial.begin(115200);
  Serial.println();
  Serial.println("---------------------------");
  Serial.println("SparkFun CC3000 - WebClient");
  Serial.println("---------------------------");
  
  // Initialize CC3000 (configure SPI communications)
  if ( wifi.init() ) {
    Serial.println("CC3000 initialization complete");
  } else {
    Serial.println("Something went wrong during CC3000 init!");
  }
  
  // Connect using DHCP
  Serial.print("Connecting to SSID: ");
  Serial.println(ap_ssid);
  if(!wifi.connect(ap_ssid, ap_security, ap_password, timeout)) {
    Serial.println("Error: Could not connect to AP");
  }
  
  // Gather connection details and print IP address
  if ( !wifi.getConnectionInfo(connection_info) ) {
    Serial.println("Error: Could not obtain connection details");
  } else {
    Serial.print("IP Address: ");
    for (i = 0; i < IP_ADDR_LEN; i++) {
      Serial.print(connection_info.ip_address[i]);
      if ( i < IP_ADDR_LEN - 1 ) {
        Serial.print(".");
      }
    }
    Serial.println();
  }

}

void loop() {
  
  if ( !client.connect(server, 80) ) {
    Serial.println("Error: Could not make a TCP connection");
    }
  else
    {  
        // Make a HTTP GET request
        client.print("GET /datetime HTTP/1.1 \n");
        client.print("Host: ");
        client.println(server);
        client.print("User-Agent: SmartCitizen \n\n");  
      //  client.println("Connection: close");
      //  client.println();
        Serial.println("ei");
        
        // If there are incoming bytes, print them
        unsigned long time = millis();
        while ( client.available()&&((millis()-time)<1000) ) {
          char c = client.read();
          Serial.print(c);
        }
        if ( !client.close() ) {
            Serial.println("Error: Could not close socket");
          }
        // If the server has disconnected, stop the client and wifi
//        if ( !client.connected() ) {
//          Serial.println();
//          // Close socket
//          if ( !client.close() ) {
//            Serial.println("Error: Could not close socket");
//          }
//        }
    }
  delay(1000);
}