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» MR-RB 01: Reading Radiation

This example shows how to measure radiation in uSv/h during a specific time.

Required Materials

1 x Waspmote
1 x Battery
1 x Radiation board
1 x Geiger tube

Notes

* Remember to connect the battery to Waspmote for proper operation.
* The connection of the sensor is described in the Radiation technical guide.
* When turning on the temperature sensor you will be powering all the low consumption group sensors. See the Radiation board technical guide for more information.
* Logger, Common and Radiation assemblies must be loaded in the mote.
* Please note that the output is in hexadecimal.
* Please note that Float.toLong() method has been used with a precission of 2 decimals. For example, a 3413 output in decimal base means 34.13. For more information of Float class, see http://localhost:5000/gac/saguaro-system-11.3.htm?fqn=r:com.ibm.saguaro.system.Float
* To compile this example: mrc --assembly=radp-1.0 --system=waspmote --ref=logger-#.# --ref=/common-1.0 --ref=/radiation-1.0 RadiationExample.java

Code

/**
 *  Copyright (C) 2013 Libelium Comunicaciones Distribuidas S.L.
 * http://www.libelium.com
 *
 * This program and the accompanying materials
 * are made available under the terms of the GNU Lesser General Public License
 * (LGPL) version 3.0 which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/lgpl-3.0.html
 *
 *  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/>.
 * 
 * Design: David Gascón
 * 
 * @version 0.1
 * @author Anartz Nuin Jiménez and Ignacio Ruiz Martín
 */

package com.libelium.examples.radiation;

import com.ibm.saguaro.logger.Logger;
import com.ibm.saguaro.system.Float;
import com.ibm.saguaro.system.GPIO;
import com.ibm.saguaro.system.Mote;
import com.ibm.saguaro.system.Util;
import com.ibm.saguaro.system.csr;
import com.libelium.common.Callback;
import com.libelium.common.Gpio;
import com.libelium.radiation.Radiation;

public class RadiationExample {
	static GPIO gpio = Gpio.getInstance();
	static Radiation rad = new Radiation();
	static{

		rad.ON();
		
		rad.getRadiation((byte)0, new Callback(null) {
			
			@Override
			public int invoke(byte[] buf, int len) {
				return interrupt(buf, len);
			}	
		}, 10000);
		
	}
	
	static int interrupt(byte[] buf, int len) {
		
		long result = Util.get32(buf, 0);
		Logger.appendString(csr.s2b("Radiation measurement (usv/h): "));
		Logger.appendHexLong(Float.toLong(result,(byte)2));
		Logger.flush(Mote.INFO);
		
		rad.getRadiation((byte)0, new Callback(null) {
			@Override
			public int invoke(byte[] buf, int len) {
				return interrupt(buf, len);
			}	
		}, 10000);
		
		return 0;
	}
}

Output

category: log
evname: MAPP
id: 7d
time: 11:21:10.830'000
severity: 5
module: MAPP
logmsg: MAPP: Radiation measurement (usv/h): 00005204

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