ZB 11b: Search node RX

This program shows how to search for a specific node inside the XBee's network. Once the node has been found a packet is sent to this node. Keep in mind that there must be a node with the specific Node ID(NI parameter) so as to be scanned

Required Materials

1 x Waspmote 1 x Battery 1 x MiniUSB wire 1 x XBee-ZigBee module

Notes

- The coordinator must be turned on - Keep in mind that there must be a node with the specific Node ID (NI parameter) so as to be scanned - The battery has to be connected. - This example can be executed in Waspmote v12

Code

/*  
 *  ------   [ZB_11b] - node search     -------- 
 *  
 *  Explanation: This program shows how to search for a specific 
 *  node inside the XBee's network. Once the node has been found a 
 *  packet is sent to this node.
 *
 *  Copyright (C) 2015 Libelium Comunicaciones Distribuidas S.L. 
 *  http://www.libelium.com 
 *  
 *  This program is free software: you can redistribute it and/or modify 
 *  it under the terms of the GNU General Public License as published by 
 *  the Free Software Foundation, either version 3 of the License, or 
 *  (at your option) any later version. 
 *  
 *  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, see . 
 *  
 *  Version:           0.1 
 *  Design:            David Gascón 
 *  Implementation:    Yuri Carmona
 */
 
#include <WaspXBeeZB.h>

// node ID
char nodeID[] = "node_RX";

// define variable
uint8_t error;



void setup()
{ 
  // init USB port
  USB.ON();
  USB.println(F("Node search example (RX node)"));

  //////////////////////////
  // 1. XBee set up
  //////////////////////////
  
  // 1.1. init XBee
  xbeeZB.ON();
      
  // 1.2. set NI (Node Identifier)
  xbeeZB.setNodeIdentifier( nodeID );
  
  // check the AT commmand execution flag
  if( xbeeZB.error_AT == 0 ) 
  {
    USB.println(F("Node ID set OK"));
  }
  else 
  {
    USB.println(F("Error calling 'setNodeIdentifier()'"));  
  }
  
  // 1.3. save XBee values in memory
  xbeeZB.writeValues();
  
  
  //////////////////////////
  // 2. check XBee's network parameters
  //////////////////////////
  USB.println(F("Check Network parameters:"));  
  checkNetworkParams();
  
}



void loop()
{ 
  // receive XBee packet (wait for 10 seconds)
  error = xbeeZB.receivePacketTimeout( 10000 );

  // check answer  
  if( error == 0 ) 
  {
    // Show data stored in '_payload' buffer indicated by '_length'
    USB.print(F("Data: "));  
    USB.println( xbeeZB._payload, xbeeZB._length);
    
    // Show data stored in '_payload' buffer indicated by '_length'
    USB.print(F("Length: "));  
    USB.println( xbeeZB._length,DEC);
  }
  else
  {
    // Print error message:
    /*
     * '7' : Buffer full. Not enough memory space
     * '6' : Error escaping character within payload bytes
     * '5' : Error escaping character in checksum byte
     * '4' : Checksum is not correct	  
     * '3' : Checksum byte is not available	
     * '2' : Frame Type is not valid
     * '1' : Timeout when receiving answer   
    */
    USB.print(F("Error receiving a packet:"));
    USB.println(error,DEC);     
  }

} 




/*******************************************
 *
 *  checkNetworkParams - Check operating
 *  network parameters in the XBee module
 *
 *******************************************/
void checkNetworkParams()
{
  // 1. get operating 64-b PAN ID
  xbeeZB.getOperating64PAN();

  // 2. wait for association indication
  xbeeZB.getAssociationIndication();
 
  while( xbeeZB.associationIndication != 0 )
  { 
    delay(2000);
    
    // get operating 64-b PAN ID
    xbeeZB.getOperating64PAN();

    USB.print(F("operating 64-b PAN ID: "));
    USB.printHex(xbeeZB.operating64PAN[0]);
    USB.printHex(xbeeZB.operating64PAN[1]);
    USB.printHex(xbeeZB.operating64PAN[2]);
    USB.printHex(xbeeZB.operating64PAN[3]);
    USB.printHex(xbeeZB.operating64PAN[4]);
    USB.printHex(xbeeZB.operating64PAN[5]);
    USB.printHex(xbeeZB.operating64PAN[6]);
    USB.printHex(xbeeZB.operating64PAN[7]);
    USB.println();     
    
    xbeeZB.getAssociationIndication();
  }

  USB.println(F("\nJoined a network!"));

  // 3. get network parameters 
  xbeeZB.getOperating16PAN();
  xbeeZB.getOperating64PAN();
  xbeeZB.getChannel();

  USB.print(F("operating 16-b PAN ID: "));
  USB.printHex(xbeeZB.operating16PAN[0]);
  USB.printHex(xbeeZB.operating16PAN[1]);
  USB.println();

  USB.print(F("operating 64-b PAN ID: "));
  USB.printHex(xbeeZB.operating64PAN[0]);
  USB.printHex(xbeeZB.operating64PAN[1]);
  USB.printHex(xbeeZB.operating64PAN[2]);
  USB.printHex(xbeeZB.operating64PAN[3]);
  USB.printHex(xbeeZB.operating64PAN[4]);
  USB.printHex(xbeeZB.operating64PAN[5]);
  USB.printHex(xbeeZB.operating64PAN[6]);
  USB.printHex(xbeeZB.operating64PAN[7]);
  USB.println();

  USB.print(F("channel: "));
  USB.printHex(xbeeZB.channel);
  USB.println();

}

Output

E#
Node search example (RX node)
Node ID set OK
Check Network parameters:

Joined a network!
operating 16-b PAN ID: D27C
operating 64-b PAN ID: 84D87D34C4AE4CB1
channel: 0B
Data: Message_from_TX_node
Length: 20
Data: Message_from_TX_node
Length: 20
...