I don't understand why split() is always setting the last data value read in to be zero. Can anyone advise?
EDIT: I do see the last value if I split to strings, instead of converting with int(). So the last string in the line contains a newline, and int() sees a non-numeric value and sets it to zero?

Here is the relevant section of my code:

1. import processing.serial.*;  // serial library
   
   Serial myPort;       // The serial port
   String inBuffer = null;  // one line of data from serial port
   
   void draw() {
   int[] dat; // array of numbers read in on one line from serial port
   
     if (inBuffer != null) {  // wait for new data on the serial port
   
       print("SERIAL:" + inBuffer);  // show the line of serial input
       dat = int(split(inBuffer, ','));  // parse comma-separated number string into numbers
       println("DAT_IN:" + dat[0] + "," + dat[1] + "," + dat[2] + "," + dat[3] + "," + dat[4]);
       println(); 
       // [... plus other stuff ...]
     }
   }
   
   void serialEvent(Serial p) {
     inBuffer = p.readString();  // store serial port buffer in global var inBuffer
   }
   

and here is a sample of the output I get. Note how the last number in the line, 125 or 123, always becomes 0.

1. SERIAL:0,0,1,629,125
   DAT_IN:0,0,1,629,0
   
   SERIAL:0,1,5,629,123
   DAT_IN:0,1,5,629,0

I am using a processing sketch to do a data acquisition task (data forwarded to pachube.com). This computer sometimes reboots for windows updates, etc. (I am running Windows XP SP3).   How do I get my PachubeData.pde sketch to auto-run after the computer reboots?

If I simply double-click on the .pde filename, it launches the Processing edit window, but does not actually start the sketch. To have it run I have to separately click the "Run" button.  So I presume dragging the link to the "Startup" folder will have the same effect (launch the Processing editor, but not the sketch itself).  Any suggestions?

EDIT: OOops! Nevermind, I just discovered "File/Export Application" to create the standalone .exe file.

I want to add very simple, real time audio output to my Processing program.  Can someone suggest the easiest way? I checked the external sound libraries, there are nine different ones listed at http://processing.org/reference/libraries/#sound  but they all appear to be focused on music composition, rather than simple low-level raw sound.

What I want is something like:  beep(pitch, volume, duration) and I get a simple beep tone of that pitch, that many milliseconds long. No wavetable synthesis, scoring system etc.

The "SoundCipher" appears to be simple, because I can get one note played like this:

import arb.soundcipher.*;        // simple audio library "SoundCipher"  (tempo=120 bpm)
SoundCipher sc = new SoundCipher(this);   // sound object for audio feedback
sc.playNote(60, 100, 1); // pitch number, volume, duration in beats

However this is a shaped note with an attack-decay-sustain-release volume envelope, which limits how fast I can make separate notes. I want a raw beep with no volume envelope.  Is there a simple way to do this?

I'm doing data acquisition with an Arduino and collecting the data (serial over USB) on the PC with a Processing 1.2.1 program. I am using a separate serialEvent() function to grab data into a buffer, which I guess is interrupt-driven(?).

 Printing out the delta between millis() on each pass through draw(), it is usually 15 msec or 30 msec. Can I change that? Setting frameRate() doesn't seem to change anything.

UPDATE: I see that I can make it slower, by setting a lower number, for example with frameRate(5) I get about 200 msec per cycle as expected. So I guess this is a limitation of my computer speed (old Inspiron 9300 laptop).