Reading XBee Data into Processing

Question

I recently built a wireless wireless monitor that uses XBee to transmit data. I'm trying to get Tweet A Watt data from Processing for use in prototyping visual energy feedback. Using the XBee API library for processing ( http://www.faludi.com/code/xbee-api-library-for-processing/ ), I made some progress, but ran into an obstacle that I would appreciate any input.

My processing sketch looks like this:

/*
XBee Communication Prototype
XBee API Library by Daniel Shiffman and Rob Faludi: http://www.faludi.com/code/xbee-api-library-for-processing/
Sample XBee communication code adapted from Tom Igoe: http://www.tigoe.net/pcomp/code/category/Processing/148
*/

//import the xbee and serial libraries:
import xbee.*;
import processing.serial.*;

// set up Xbee parameters:
Serial port;
XBeeReader xbee;
int rssi = 0;     // received signal strength
int address = 0;     // sender address
int samples = 0;     // total number of samples
int[] analog;     // values from the analog I/O pins

void setup() {
  // set up xbee
  port = new Serial(this, Serial.list()[0], 9600);
  xbee = new XBeeReader(this, port);
  xbee.startXBee();  
}

void draw() {}    

// called every time an XBee event is received: every 2s in the case of the Tweet A Watt
public void xBeeEvent(XBeeReader xbee) {    
   // Grab a frame of data
   XBeeDataFrame data = xbee.getXBeeReading();   

  println("");
  println("LOOP " + hour() + ":" + minute() + ":" + second());

    // Get the transmitter address
    address = data.getAddress16();
    println("API ID: " + address);    

    // Get the RSSI
    rssi = data.getRSSI();
  println("RSSI: " + rssi);      

  // Get total number of samples
  samples = data.getTotalSamples();   
  println("Total Samples: " + samples);    

  // Output the Analog readings for each sample     
  // ONLY GETS FIRST SAMPLE - How do I access all samples?
  for (int i=0; i < samples; i++) {
   analog = data.getAnalog(i);
   print("[");
   for (int j=0; j < analog.length; j++) {
    print(analog[j]);
    if (j < analog.length - 1) { print(", "); }
   }
   print("]");
   if (i < samples - 1) { print(", "); }
   else { println(""); }
  }
}

Everything works as expected. XBeeEvent is called every 2s and displays the correct values ​​for the API ID, RSSI, and Total Samples (19). However, when I output the contents of the analog readings, I seem to get the first sample repeated 19 times. See this example:

LOOP 10:37:57
API ID: 1
RSSI: -61
Total Samples: 19
[512, -1, -1, -1, 688, -1], [512, -1, -1, -1, 688, -1], [512, -1, -1, -1, 688, -1], [512, -1, -1, -1, 688, -1], [512, -1, -1, -1, 688, -1], [512, -1, -1, -1, 688, -1], [512, -1, -1, -1, 688, -1], [512, -1, -1, -1, 688, -1], [512, -1, -1, -1, 688, -1], [512, -1, -1, -1, 688, -1], [512, -1, -1, -1, 688, -1], [512, -1, -1, -1, 688, -1], [512, -1, -1, -1, 688, -1], [512, -1, -1, -1, 688, -1], [512, -1, -1, -1, 688, -1], [512, -1, -1, -1, 688, -1], [512, -1, -1, -1, 688, -1], [512, -1, -1, -1, 688, -1], [512, -1, -1, -1, 688, -1]

LOOP 10:38:59
API ID: 1
RSSI: -61
Total Samples: 19
[503, -1, -1, -1, 561, -1], [503, -1, -1, -1, 561, -1], [503, -1, -1, -1, 561, -1], [503, -1, -1, -1, 561, -1], [503, -1, -1, -1, 561, -1], [503, -1, -1, -1, 561, -1], [503, -1, -1, -1, 561, -1], [503, -1, -1, -1, 561, -1], [503, -1, -1, -1, 561, -1], [503, -1, -1, -1, 561, -1], [503, -1, -1, -1, 561, -1], [503, -1, -1, -1, 561, -1], [503, -1, -1, -1, 561, -1], [503, -1, -1, -1, 561, -1], [503, -1, -1, -1, 561, -1], [503, -1, -1, -1, 561, -1], [503, -1, -1, -1, 561, -1], [503, -1, -1, -1, 561, -1], [503, -1, -1, -1, 561, -1]

, 19 . Python script Tweet A Watt (wattcher.py) XBee, 19 . , "".

API XBee getAnalog() getAnalog (n) :

getAnalog() – returns an array of integers that represents the current state of each analog channel with -1 indicating that the channel is not configured for analog. Use this when there is only one sample per frame.

getAnalog(int n) – returns the nth sample of analog data as an array of integers with -1 indicating that the channel is not configured for analog.

getAnalog (int n) . , "" , XBeeDataFrame data = xbee.getXBeeReading();?

Serial , API XBee ( (http://www.tigoe.net/pcomp/code/category/Processing/8), (http://processing.org/reference/libraries/serial/Serial.html) (http://ssdl.stanford.edu/ssdl/images/stories/AA236/0708A/Lab/Rover/Parts/xbeeproproductmanual.pdf), .

- XBee, API XBee , . , , . , , Adafruit ( The Tweet A Watt - http://forums.adafruit.com/viewtopic.php?f=40&t=16067&sid=4e34727fa59b7c7d589564d2d6b85e46) (http://processing.org/discourse/yabb2/YaBB.pl?num=1276111549), , , .

, , . .

Answer 1

Ive XBee-API Java, Andrew Rapp. Series 1, Series 2, API. , , .