Pir hub node

hub-node.pde

/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation;
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Authors: Alessandro Paganelli <alessandro.paganelli@gmail.com>
 */

/*
 * Script usato per comunicare con pachube, tramite ethernet shield.
 */

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

// Put your feed ID here
#define _FEED_ID 0000 

// Put your pachube key here
#define _PACHUBE_KEY  ABCD

#define _DEBUG 0

#define _UPDATE_INTERVAL 30000

// assign a MAC address for the ethernet controller.
// fill in your address here:
byte mac[] = {0xAB, 0xCD, 0xEF, 0x00, 0x12, 0x34};

// choose your IP address
byte ip[] = {192, 168, 0, 20 };

// Setup the IP address of your gateway
byte gateway[] = {192, 168, 0, 254};

// Setup the netmask of your network
byte subnet[] = {255, 255, 255, 0};

//  The address of the server you want to connect to (pachube.com):
byte server[] = { 173, 203, 98, 29 }; 

// initialize the library instance:
Client client(server, 80);

String stringa("1, yes");

char readCharacter;

unsigned long time;

void 
setup() 
{
  // start the ethernet connection and serial port:
  Ethernet.begin(mac, ip, gateway, subnet); // This should work with Arduino prior to 1.0
  // give the ethernet module time to boot up:
  delay(1000);
  
  Serial.begin(9600);
  
  time = millis();
}

void 
loop() 
{
  if (Serial.available() > 0)
  {
    // I received something
    readCharacter = Serial.read();
    if (readCharacter == 'A')
    {
      // Read the whole message (starting with a "A")
      for (int i = 0; i < 4; i++)
      {
        readCharacter = Serial.read();  
      }
      
#if _DEBUG
      Serial.println("Message received!");
#endif
 
      // I send a message over the Internet only if enough time has passed
      // since last update
      if (millis() - time >= _UPDATE_INTERVAL)
      {
        time = millis();
        SendDataOverEthernet();
      }
#if _DEBUG
      else
      {
        Serial.println("Message not sent - too short update interval!");  
      }
#endif
    } 
  }
}

// this method makes a HTTP connection to the server:
void 
SendDataOverEthernet() 
{
  // Check the connection
  if (!client.connected())
  {
    // I must connect
    if(!client.connect())
    {
#if _DEBUG
      Serial.println("Connection failed");
#endif
      delay(1000);
      return; 
    }
  }
  
  // send the HTTP PUT request. 
  // fill in your feed address here:
  client.print("PUT /v2/feeds/_FEED_ID.csv HTTP/1.1\n");
  client.print("Host: api.pachube.com\n");
  // fill in your Pachube API key here:
  client.print("X-PachubeApiKey: _PACHUBE_KEY\n");
  client.print("Content-Length: ");

  // calculate the length of the sensor reading in bytes:
  client.println(stringa.length(), DEC);

  // last pieces of the HTTP PUT request:
  client.print("Content-Type: text/csv\n");
  client.println("Connection: close\n");

  // here's the actual content of the PUT request:
  client.println(stringa);

  client.println();
  
#if _DEBUG
  while (client.available())
  {
    readCharacter = client.read();
    Serial.print(readCharacter);  
  }
#endif

  client.stop();
}

rf-receiver.pde

/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation;
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Authors: Alessandro Paganelli <alessandro.paganelli@gmail.com>
 */

/* 
 * Questo script implementa un semplice ricevitore a 433 MHz, che ritrasmette ciò che ha
 * ricevuto sulla seriale.
 */

#include <simple_wireless.h>
#include <VirtualWire.h>
#include <string.h>

#define _TIMEOUT 5000 // 5 seconds

/* declaration of the receiver object */
sw_receiver rx;

/* declaration of the data unit to be used for communications */
sw_dataUnit aDataUnit;

void 
setup()
{
  Serial.begin(9600);
  
  rx.setSpeed(2000);
  rx.setLocalAddress(0x02);
  rx.setRxPin(8);
}

void 
loop()
{  
  /* start reception */
  if(rx.receive(aDataUnit, _TIMEOUT))
    Serial.println("Alarm");  // Send an alarm message over the serial line
}