ZB 02b: Join unkown network
This program shows how to search for a new coordinator when network parameters are unknown. It is necessary to scan a new coordinator setting different channels 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 - To store parameter changes after power cycles, it is needed to execute the "writeValues" function. If not, when the XBee is powered off, values do not remain in the module's memory.
Code
/*
------ [ZB_02b] - router joins an unknown coordinator --------
Explanation: This program shows how to search for a new coordinator
when network parameters are unknown. It is necessary to scan a new
coordinator setting different channels to be scanned
Copyright (C) 2016 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: 0.2
Design: David Gascón
Implementation: Yuri Carmona
*/
#include <WaspXBeeZB.h>
// PAN ID to set in order to search a new coordinator
uint8_t PANID[8] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
void setup()
{
// init USB port
USB.ON();
USB.println(F("ZB_02b example"));
///////////////////////////////////////////////
// Init XBee
///////////////////////////////////////////////
xbeeZB.ON();
///////////////////////////////////////////////
// 1. Disable Coordinator mode
///////////////////////////////////////////////
/*************************************
WARNING: Only XBee ZigBee S2C and
XBee ZigBee S2D are able to use
this function properly
************************************/
xbeeZB.setCoordinator(DISABLED);
// check at command flag
if (xbeeZB.error_AT == 0)
{
USB.println(F("1. Coordinator mode disabled"));
}
else
{
USB.println(F("1. Error while disabling Coordinator mode"));
}
///////////////////////////////////////////////
// 2. Dissociation process
///////////////////////////////////////////////
/////////////////////////////////////
// 2.1. Set PANID: 0x0000000000000000
/////////////////////////////////////
xbeeZB.setPAN(PANID);
// check at command flag
if (xbeeZB.error_AT == 0)
{
USB.println(F("2.1. PANID set OK"));
}
else
{
USB.println(F("2.1. Error while setting PANID"));
}
/////////////////////////////////////
// 2.2. set all possible channels to scan
/////////////////////////////////////
// channels from 0x0B to 0x18 (0x19 and 0x1A are excluded)
/* Range:[0x0 to 0x3FFF]
Channels are scpedified as a bitmap where depending on
the bit a channel is selected --> Bit (Channel):
0 (0x0B) 4 (0x0F) 8 (0x13) 12 (0x17)
1 (0x0C) 5 (0x10) 9 (0x14) 13 (0x18)
2 (0x0D) 6 (0x11) 10 (0x15)
3 (0x0E) 7 (0x12) 11 (0x16) */
xbeeZB.setScanningChannels(0x3F, 0xFF);
// check AT command flag
if ( xbeeZB.error_AT == 0 )
{
USB.println(F("2.2. Scanning channels set OK"));
}
else
{
USB.println(F("2.2. Error while setting 'Scanning channels'"));
}
/////////////////////////////////////
// 2.3. Set channel verification JV=1
// in order to make the module to scan
// a new coordinator
/////////////////////////////////////
xbeeZB.setChannelVerification(1);
// check AT command flag
if ( xbeeZB.error_AT == 0 )
{
USB.println(F("2.3. Verification channel set OK"));
}
else
{
USB.println(F("2.3. Error while setting verification channel"));
}
///////////////////////////////////////////////
// Save values
///////////////////////////////////////////////
xbeeZB.writeValues();
///////////////////////////////////////////////
// Reboot XBee module
///////////////////////////////////////////////
xbeeZB.OFF();
delay(3000);
xbeeZB.ON();
delay(3000);
/////////////////////////////////////
// 3. Wait for Association
/////////////////////////////////////
// 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("\n\nJoined a coordinator!"));
// 2.2. When XBee is associated print all network
// parameters unset channel verification JV=0
xbeeZB.setChannelVerification(0);
xbeeZB.writeValues();
// 2.3. 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();
}
void loop()
{
// Do nothing
}Output
E#
ZB_02b example
PANID set OK
scanning channels set OK
verification channel set OK
operating 64-b PAN ID: 0000000000000000
operating 64-b PAN ID: 0000000000000000
operating 64-b PAN ID: 1122334455667788
Joined a coordinator!
operating 16-b PAN ID: 7C7A
operating 64-b PAN ID: 1122334455667788
channel: 0ELast updated