com.rapplogic.xbee.examples.zigbee.ZNetReceiverExample Maven / Gradle / Ivy

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/**
 * Copyright (c) 2008 Andrew Rapp. All rights reserved.
 *  
 * This file is part of XBee-API.
 *  
 * XBee-API 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.
 *  
 * XBee-API 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 XBee-API.  If not, see .
 */

package com.rapplogic.xbee.examples.zigbee;

import org.apache.log4j.Logger;
import org.apache.log4j.PropertyConfigurator;

import com.rapplogic.xbee.api.ApiId;
import com.rapplogic.xbee.api.AtCommand;
import com.rapplogic.xbee.api.AtCommandResponse;
import com.rapplogic.xbee.api.XBee;
import com.rapplogic.xbee.api.XBeeResponse;
import com.rapplogic.xbee.api.zigbee.ZNetRxResponse;
import com.rapplogic.xbee.util.ByteUtils;

/**
 * This class is the companion to ZNetSenderTest.java, and as such, it receives packets sent by ZNetSenderTest.java
 * See the ZNetSenderTest.java for information on how to configure your XBee for this demo
 * 
 * You can start ZNetSenderTest.java and this class in any order but it's generally best to start this class first.
 * 
 * @author andrew
 *
 */
public class ZNetReceiverExample {

	private final static Logger log = Logger.getLogger(ZNetReceiverExample.class);
	
	private ZNetReceiverExample() throws Exception {
		XBee xbee = new XBee();		

		try {			
			// replace with the com port of your receiving XBee (typically your end device)
			// router
			xbee.open("/dev/tty.usbserial-A6005uPi", 9600);
			
			while (true) {

				try {
					// we wait here until a packet is received.
					XBeeResponse response = xbee.getResponse();
					
					log.info("received response " + response.toString());
					
					if (response.getApiId() == ApiId.ZNET_RX_RESPONSE) {
						// we received a packet from ZNetSenderTest.java
						ZNetRxResponse rx = (ZNetRxResponse) response;
						
						log.info("Received RX packet, option is " + rx.getOption() + ", sender 64 address is " + ByteUtils.toBase16(rx.getRemoteAddress64().getAddress()) + ", remote 16-bit address is " + ByteUtils.toBase16(rx.getRemoteAddress16().getAddress()) + ", data is " + ByteUtils.toBase16(rx.getData()));

						// optionally we may want to get the signal strength (RSSI) of the last hop.
						// keep in mind if you have routers in your network, this will be the signal of the last hop.
						AtCommand at = new AtCommand("DB");
						xbee.sendAsynchronous(at);
						XBeeResponse atResponse = xbee.getResponse();
						
						if (atResponse.getApiId() == ApiId.AT_RESPONSE) {
							// remember rssi is a negative db value
							log.info("RSSI of last response is " + -((AtCommandResponse)atResponse).getValue()[0]);
						} else {
							// we didn't get an AT response
							log.info("expected RSSI, but received " + atResponse.toString());
						}
					} else {
						log.debug("received unexpected packet " + response.toString());
					}
				} catch (Exception e) {
					log.error(e);
				}
			}
		} finally {
			if (xbee != null && xbee.isConnected()) {
				xbee.close();		
			}
		}
	}

	public static void main(String[] args) throws Exception {
		// init log4j
		PropertyConfigurator.configure("log4j.properties");
		new ZNetReceiverExample();
	}
}