This program shows how to receive packets with XBee-802.15.4 modules. The source address is read when the packet is received.
Required Materials
1 x Waspmote PRO
1 x Battery
1 x MiniUSB wire
1 x XBee-802.15.4 module
Notes
- This example belongs to a two-code example. This is the receiving part.
- Both XBee modules must be configured with the same network parameters (PANID, channel, encryption mode)
- The battery has to be connected.
- This example can be executed in Waspmote v12 and Waspmote v15
Code
/*
* ------ [802_04b] - receive packets using a 16-bit source address --------
*
* Explanation: This program shows how to receive packets with
* XBee-802.15.4 modules. The source address is read when the
* packet is received
*
* 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: 3.0
* Design: David Gascón
* Implementation: Yuri Carmona
*/
#include
// variable to store source's network address
uint8_t sourceNetworkAddress[2];
// define the network address for the Xbee module
char OWN_NETADDRESS[] = "1234";
// define variable
uint8_t error;
void setup()
{
// init USB port
USB.ON();
USB.println(F("Sending packets example - RX NODE (16-bit addressing)"));
// init XBee
xbee802.ON();
// set 0x1234 as this XBee's Network Address (MY address)
xbee802.setOwnNetAddress( OWN_NETADDRESS );
// write values to XBee module memory
xbee802.writeValues();
}
void loop()
{
// receive XBee packet (wait for 10 seconds)
error = xbee802.receivePacketTimeout( 10000 );
// check answer
if( error == 0 )
{
// Show data stored in '_payload' buffer indicated by '_length'
USB.print(F("Data: "));
USB.println( xbee802._payload, xbee802._length);
// Show data stored in '_payload' buffer indicated by '_length'
USB.print(F("Length: "));
USB.println( xbee802._length,DEC);
// Show data stored in '_payload' buffer indicated by '_length'
USB.print(F("Source Network Address: "));
USB.printHex( xbee802._srcNA[0] );
USB.printHex( xbee802._srcNA[1] );
USB.println();
USB.println(F("--------------------------------"));
}
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);
USB.println(F("--------------------------------"));
}
}