Development v12

Warning - Product Update

All the resources present on this section belong to Waspmote v12, Waspmote Plug & Sense! v12 and Meshlium v3.8.

If you have a Waspmote v15, Waspmote Plug & Sense! v15 or Meshlium v4.0 please go to the new Development Section.

Check what is your version and what are the differences between the old and the new one in this document.

» 900 10: Node search

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.

Required Materials

1 x Waspmote PRO
1 x Battery
1 x MiniUSB wire
1 x XBee-900

Notes

* It is recommended to turn on another XBee module in order to have some module to be scanned. It should have the same node identifier the code tries to seek: RECEIVER.

Code

/*  
 *  ------   [900_10] - 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) 2012 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 <http://www.gnu.org/licenses/>. 
 *  
 *  Version:           0.1 
 *  Design:            David Gascón 
 *  Implementation:    Yuri Carmona
 */
 
 #include <WaspXBee900.h>

// node Id to be searched
char* node="RECEIVER";

// variable to store searched Destination MAC Address
uint8_t mac[8]; 

// create packet to send
packetXBee* packet;


void setup()
{ 
  // init USB port
  USB.ON();
  USB.println(F("900_10 example"));

  //////////////////////////
  // 1. XBee set up
  //////////////////////////
  
  // 1.1. init XBee
  xbee900.ON();
      
  // 1.2. set NI (Node Identifier)
  xbee900.setNodeIdentifier("SENDER");
  
  // 1.3. save XBee values in memory
  xbee900.writeValues();
  
}

void loop()
{   
  ////////////////////////////////////////
  // 2. search node
  ////////////////////////////////////////
  
  if(!xbee900.nodeSearch(node, mac))
  {
    USB.print("\nmac:");
    USB.printHex(mac[0]);
    USB.printHex(mac[1]);
    USB.printHex(mac[2]);
    USB.printHex(mac[3]);
    USB.printHex(mac[4]);
    USB.printHex(mac[5]);
    USB.printHex(mac[6]);
    USB.printHex(mac[7]);
  }
  else USB.print("error");
  USB.println();
  
    
  ////////////////////////////////////////
  // 3. send a packet to the searched node
  ////////////////////////////////////////
   
  // 3.1. set packet parameters:
  packet=(packetXBee*) calloc(1,sizeof(packetXBee)); // memory allocation
  packet->mode=UNICAST; // set Unicast mode
  
  // 3.2. set Destination parameters
  xbee900.setDestinationParams(packet, mac, "This is a message"); 
  
  // 3.3. send data
  xbee900.sendXBee(packet); 
  
  // 3.4. check TX flag
  if( xbee900.error_TX == 0 ) 
  {
    USB.println(F("ok"));
  }
  else
  {
    USB.println(F("error"));
  }
  
  // 3.5. free memory
  free(packet);
  packet=NULL; 
  
  
  delay(3000);  

}  



Output

B#
900_10 example

mac:0013A2004066EF86
ok

mac:0013A2004066EF86
ok

mac:0013A2004066EF86
ok

mac:0013A2004066EF86
ok

...

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