ZB 04: Receive packets

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This example shows hot to receive packets with XBee modules
Required Materials
 1 x Waspmote
 1 x Battery
 1 x MiniUSB wire
 1 x XBee-ZigBee module
Notes
 - The coordinator must be turned on
 - The battery has to be connected.
 - This example can be executed in Waspmote v12
Code
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/*  
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 *  ------ [ZB_04] - receive packet -------- 
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 *  
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 *  Explanation: This example shows hot to receive packets with XBee
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 *  modules 
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 *  
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 *  Copyright (C) 2015 Libelium Comunicaciones Distribuidas S.L. 
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 *  http://www.libelium.com 
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 *  
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 *  This program is free software: you can redistribute it and/or modify 
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 *  it under the terms of the GNU General Public License as published by 
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 *  the Free Software Foundation, either version 3 of the License, or 
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 *  (at your option) any later version. 
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 *  
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 *  This program is distributed in the hope that it will be useful, 
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of 
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
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 *  GNU General Public License for more details. 
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 *  
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 *  You should have received a copy of the GNU General Public License 
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 *  along with this program.  If not, see . 
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 *  
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 *  Version:           0.2
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 *  Design:            David Gascón 
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 *  Implementation:    Yuri Carmona
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 */
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#include <WaspXBeeZB.h>
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​
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// define variable
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uint8_t error;
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​
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​
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void setup()
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{  
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  // init USB port
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  USB.ON();
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  USB.println(F("Receiving example"));
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​
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  //////////////////////////
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  // 1. init XBee
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  //////////////////////////
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  xbeeZB.ON();
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  delay(3000);
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  //////////////////////////
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  // 2. check XBee's network parameters
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  //////////////////////////
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  checkNetworkParams();
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}
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​
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​
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void loop()
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{ 
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  // receive XBee packet (wait for 10 seconds)
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  error = xbeeZB.receivePacketTimeout( 10000 );
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​
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  // check answer  
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  if( error == 0 ) 
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  {
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    // Show data stored in '_payload' buffer indicated by '_length'
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    USB.print(F("Data: "));  
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    USB.println( xbeeZB._payload, xbeeZB._length);
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    // Show data stored in '_payload' buffer indicated by '_length'
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    USB.print(F("Length: "));  
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    USB.println( xbeeZB._length,DEC);
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  }
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  else
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  {
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    // Print error message:
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    /*
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     * '7' : Buffer full. Not enough memory space
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     * '6' : Error escaping character within payload bytes
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     * '5' : Error escaping character in checksum byte
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     * '4' : Checksum is not correct	  
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     * '3' : Checksum byte is not available	
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     * '2' : Frame Type is not valid
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     * '1' : Timeout when receiving answer   
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    */
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    USB.print(F("Error receiving a packet:"));
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    USB.println(error,DEC);     
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  }
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} 
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​
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​
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/*******************************************
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 *
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 *  checkNetworkParams - Check operating
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 *  network parameters in the XBee module
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 *
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 *******************************************/
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void checkNetworkParams()
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{
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  // 1. get operating 64-b PAN ID
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  xbeeZB.getOperating64PAN();
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​
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  // 2. wait for association indication
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  xbeeZB.getAssociationIndication();
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  while( xbeeZB.associationIndication != 0 )
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  { 
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    delay(2000);
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    // get operating 64-b PAN ID
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    xbeeZB.getOperating64PAN();
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​
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    USB.print(F("operating 64-b PAN ID: "));
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    USB.printHex(xbeeZB.operating64PAN[0]);
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    USB.printHex(xbeeZB.operating64PAN[1]);
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    USB.printHex(xbeeZB.operating64PAN[2]);
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    USB.printHex(xbeeZB.operating64PAN[3]);
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    USB.printHex(xbeeZB.operating64PAN[4]);
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    USB.printHex(xbeeZB.operating64PAN[5]);
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    USB.printHex(xbeeZB.operating64PAN[6]);
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    USB.printHex(xbeeZB.operating64PAN[7]);
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    USB.println();     
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    xbeeZB.getAssociationIndication();
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  }
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​
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  USB.println(F("\nJoined a network!"));
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​
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  // 3. get network parameters 
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  xbeeZB.getOperating16PAN();
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  xbeeZB.getOperating64PAN();
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  xbeeZB.getChannel();
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​
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  USB.print(F("operating 16-b PAN ID: "));
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  USB.printHex(xbeeZB.operating16PAN[0]);
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  USB.printHex(xbeeZB.operating16PAN[1]);
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  USB.println();
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​
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  USB.print(F("operating 64-b PAN ID: "));
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  USB.printHex(xbeeZB.operating64PAN[0]);
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  USB.printHex(xbeeZB.operating64PAN[1]);
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  USB.printHex(xbeeZB.operating64PAN[2]);
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  USB.printHex(xbeeZB.operating64PAN[3]);
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  USB.printHex(xbeeZB.operating64PAN[4]);
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  USB.printHex(xbeeZB.operating64PAN[5]);
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  USB.printHex(xbeeZB.operating64PAN[6]);
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  USB.printHex(xbeeZB.operating64PAN[7]);
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  USB.println();
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​
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  USB.print(F("channel: "));
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  USB.printHex(xbeeZB.channel);
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  USB.println();
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​
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}
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Output
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E#
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Receiving example
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​
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Joined a network!
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operating 16-b PAN ID: D27C
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operating 64-b PAN ID: 84D87D34C4AE4CB1
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channel: 0B
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Data: <=>#387245265#node_01#1#STR:new_sensor_frame#BAT:1#
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Length: 53
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Data: <=>#387245265#node_01#2#STR:new_sensor_frame#BAT:1#
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Length: 53
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Data: <=>#387245265#node_01#3#STR:new_sensor_frame#BAT:1#
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Length: 53
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...
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Last modified 2yr ago
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