Processing Forum

Error when trying to export application in 64-bit win7

[2 Replies]
- 01-Dec-2012 03:34 PM
- Forum: General Discussion
Greetings. I hope this is the right forum for the topic.

Following error shows:

"The application.windows64 folder will not be created because no 64-bit version of serial is available for windows"

Then a window is opened showing the application processing source.

I have only downloaded the 32bit windows version of Processing.

regards

Please take a look at my serial handling in my app

[3 Replies]
- 01-Dec-2012 03:00 PM
- Forum: Integration and Hardware
hello.

Im most bad in serial communication. Sometimes I can start Processing app without error and sometimes following error shows up :

error, disabling serialEvent() for //./COM4
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at processing.serial.Serial.serialEvent(Unknown Source)
at gnu.io.RXTXPort.sendEvent(RXTXPort.java:732)
at gnu.io.RXTXPort.eventLoop(Native Method)
at gnu.io.RXTXPort$MonitorThread.run(RXTXPort.java:1575)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 2
at trial2.serialEvent(trial2.java:81)
... 8 more

Appreciate any comments regarding serial. Thank You in advance.

regards

---------

Snippet of Arduino output app, x,y,z are double variabletypes:
1. //Output the caculations
  Serial.print(x);
  Serial.print(",");
  Serial.print(y);
  Serial.print(",");
  Serial.println(z);
  Serial.flush();
Snippet of Processing app included in serial communication:

Setup void func:
1. println(Serial.list());
  frameRate(50);
  
  // Open whatever port is the one you're using.
  myPort = new Serial(this, Serial.list()[1], 115200);
  myPort.bufferUntil(lf);
Serial event func:
1. inString = p.readString();
  lengde=inString.length();
  inString=inString.substring(0, lengde-1);
  float[] vals = float(splitTokens(inString,","));
  xin=vals[0];
  yin=vals[1];
  zin=vals[2];
  // plot accel combined with gyroscope combined/not combinded with complementary filtering
  plott();
  teller=teller+1;
  if (teller==(int)(displayWidth)-64)
                                        {
                                          teller=192;
                                          fill(202);
                                          rect(193.0,0.0,(float)displayWidth-64.0,(float)line2-1.0);
                                          noFill();
                                         }
  }
Full listing of Arduino app:
1. #include <SoftwareSerial.h>
2. //////////////////////////////////////////////////////////////////
  //©2011 bildr
  //Released under the MIT License - Please reuse change and share
  //Simple code for the ADXL335, prints calculated orientation via serial
  //////////////////////////////////////////////////////////////////
  String accel;
  //Analog read pins
  const int xPin = 0;
  const int yPin = 1;
  const int zPin = 2;
  //The minimum and maximum values that came from
  //the accelerometer while standing still
  //You very well may need to change these
  int minVal = 265;
  // int maxVal = 402;
  int maxVal = 402;
3. //to hold the caculated values
  double x;
  double y;
  double z;
4. void setup(){
  Serial.begin(115200);
  }
5. void loop(){
6. //read the analog values from the accelerometer
  int xRead = analogRead(xPin);
  int yRead = analogRead(yPin);
  int zRead = analogRead(zPin);
7. //convert read values to degrees -90 to 90 - Needed for atan2
  int xAng = map(xRead, minVal, maxVal, -90, 90);
  int yAng = map(yRead, minVal, maxVal, -90, 90);
  int zAng = map(zRead, minVal, maxVal, -90, 90);
8. //Caculate 360deg values like so: atan2(-yAng, -zAng)
  //atan2 outputs the value of -π to π (radians)
  //We are then converting the radians to degrees
  x = RAD_TO_DEG * (atan2(-yAng, -zAng) + PI);
  y = RAD_TO_DEG * (atan2(-xAng, -zAng) + PI);
  z = RAD_TO_DEG * (atan2(-yAng, -xAng) + PI);
9. //Output the caculations
  Serial.print(x);
  Serial.print(",");
  Serial.print(y);
  Serial.print(",");
  Serial.println(z);
  Serial.flush();
10. // delay(10);//just here to slow down the serial output - Easier to read
  }
Full listing of the Processing app:
1. import processing.serial.*;
  
  Serial myPort;    // The serial port
  PFont myFont;     // The display font
  String inString; // Input string from serial port
  int lf = 10;      // ASCII linefeed
  int environx,environy,environz;
  int rotx=90,roty=0,rotz=0; //holds rotation parameters
  int linezero; // holds (1/6)- 36 of displayheight
  int line1,line2,line3,line4,line5,line6;
  float line90,line270,xin,yin,zin;
  int lengde=0,teller=0;
  int plotstart=0;
  boolean bflag1=false,bflag2=false,bflag3=false,bflag4=false,bflag5=false,bflag6=false,bflag7=false;
2. void setup() {
  
  environx=displayWidth;
  environy=displayHeight-36;
  linezero=environy/6;
  line1=linezero;line2=linezero*2;line3=linezero*3;line4=linezero*4;line5=linezero*5;line6=linezero*6;line90=linezero*1.5;line270=linezero*0.5;
  size(environx-32, environy);
  background(202);
  drawlines();
  makebutton(192,line2+24,66,33,1,"ACCEL-X",8,255,255,255,0,0,180);
  makebutton(288,line2+24,66,33,1,"ACCEL-Y",8,255,255,255,100,50,0);
  makebutton(384,line2+24,66,33,1,"ACCEL-Z",8,255,255,255,250,0,250);
  makebutton(512,line2+24,66,33,1,"COMPLIM",8,255,255,255,0,180,0);
  makebutton(608,line2+24,66,33,1,"P-I-D",8,255,255,255,180,0,0);
  
  makebutton(192,line4-56,66,33,1,"GYRO-X",8,255,255,255,240,140,12);
  makebutton(288,line4-56,66,33,1,"GYRO-Y",8,255,255,255,240,140,12);
  makebutton(384,line4-56,66,33,1,"GYRO-Z",8,255,255,255,240,140,12);
  
  // List all the available serial ports:
  println(Serial.list());
  frameRate(50);
  
  // Open whatever port is the one you're using.
  myPort = new Serial(this, Serial.list()[1], 115200);
  myPort.bufferUntil(lf);
  }
  
  void draw()
  {
  // draw LED indicators
  indi();
  }
  
  void serialEvent(Serial p)
  {
  inString = p.readString();
  lengde=inString.length();
  inString=inString.substring(0, lengde-1);
  float[] vals = float(splitTokens(inString,","));
  xin=vals[0];
  yin=vals[1];
  zin=vals[2];
  // plot accel combined with gyroscope combined/not combinded with complementary filtering
  plott();
  teller=teller+1;
  if (teller==(int)(displayWidth)-64)
                                        {
                                          teller=192;
                                          fill(202);
                                          rect(193.0,0.0,(float)displayWidth-64.0,(float)line2-1.0);
                                          noFill();
                                         }
  }
3. void drawlines()
  {
  stroke(127);
  line(192,line1,180,line1);
  line(180,line2,environx-64,line2);
  line(180,line90,192,line90);
  line(180,line270,192,line270);
  
  line(192,line4,environx-64,line4);
  line(192,line5,environx-64,line5);
  line(192,line6,environx-64,line6);
  fill(0,0,0);
  text("360", 150,10 );
  text("270", 150,line270);
  text("180",150,line1);
  text("90", 150,line90);
  text("0", 150, line2);
  
  text("ROLL",192,line2+99);
  text("NICK",288,line2+99);
  
  text("ROLL",192,line4-99);
  text("NICK",288,line4-99);
  text("YAW",384,line4-99);
  
  // text("180",150,line3);
  // text("0", 150, line4);
  text("360", 150,line4);
  text("180",150,line5);
  text("0", 150, line6);
  
  line(192,0,192,line2);
  
  // draw vertical lines
  // line(192,environy/3,192,environy/3-180);
  
  }
4. void makebutton(int bposx,int bposy,int bwidth,int bheight,int bscale,String tekst,int tekstsize, int trcolor,int tgcolor,int tbcolor,int brcolor,int bgcolor,int bbcolor)
  {
  fill(brcolor,bgcolor,bbcolor);
  rect(bposx,bposy,bwidth*bscale,bheight*bscale);
  noFill();
  fill(trcolor,tgcolor,tbcolor);
  // textSize(tekstsize);
  text(tekst, bposx+((bwidth-textWidth(tekst))/2), bposy+(bheight/2)+tekstsize/2);
  noFill();
  }
5. void mouseClicked()
  {   // Button ACCEL X
      if (mouseX > 192 && mouseX < 258 && mouseY > (line2+24) && mouseY < (line2+57))
          {
            bflag1=!bflag1;
          }
      // Button ACCEL Y
      if (mouseX > 288 && mouseX < 354 && mouseY > (line2+24) && mouseY < (line2+57))
          {
            bflag2=!bflag2;
          }
      // Button ACCEL Z
      if (mouseX > 384 && mouseX < 450 && mouseY > (line2+24) && mouseY < (line2+57))
          {
            bflag3=!bflag3;
          }
6.     // Button COMPLIMENTARY FILTER
      if (mouseX > 512 && mouseX < 578 && mouseY > (line2+24) && mouseY < (line2+57))
          {
            bflag4=!bflag4;
          }
7. }
8. // draw LED indicators
  void indi()
  {
  if (bflag1==true)
                      {
                        fill(0,255,0);
                        ellipse(225,line2+66,10, 10);
                        noFill();
                      }
  if(bflag1==false)
                      {
                        fill(255,0,0);
                        ellipse(225,line2+66,10, 10);
                        noFill();
                      }
  
  
  if (bflag2==true)
                      {
                        fill(0,255,0);
                        ellipse(321,line2+66,10, 10);
                        noFill();
                      }
  if(bflag2==false)
                      {
                        fill(255,0,0);
                        ellipse(321,line2+66,10, 10);
                        noFill();
                      }
  
  
  if (bflag3==true)
                      {
                        fill(0,255,0);
                        ellipse(417,line2+66,10, 10);
                        noFill();
                      }
  if(bflag3==false)
                      {
                        fill(255,0,0);
                        ellipse(417,line2+66,10, 10);
                        noFill();
                      }
  
  
  if (bflag4==true)
                      {
                        fill(0,255,0);
                        ellipse(545,line2+66,10, 10);
                        noFill();
                      }
  if(bflag4==false)
                      {
                        fill(255,0,0);
                        ellipse(545,line2+66,10, 10);
                        noFill();
                      }
  
  }
9. void plott()
  {
  // plot accell x,y,z
  if(bflag1==true)
  {
  stroke(0.0,0.0,180.0);
  point(plotstart+teller,(float)line2-xin);
  noStroke();
  
  if (bflag4==true)
  {
  // run complimentary filter
  // plot point in green color
  }
  }
  
  if(bflag2==true)
  {
  stroke(10.0,50.0,0.0);
  point(plotstart+teller,(float)line2-yin);
  noStroke();
10. if (bflag4==true)
  {
  // run complimentary filter
  // plot point in green color
  }
11. }
  
  if(bflag3==true)
  {
  stroke(250.0,0.0,250.0);
  point(plotstart+teller,(float)line2-zin);
  noStroke();
  
  if (bflag4==true)
  {
  // run complimentary filter
  // plot point in green color
  }
12. }
13. }
14. /*
15. // complimentary filter
16. float filterAngle;
  float dt=0.02;
17. float comp_filter(float newAngle, float newRate) {
18. float filterTerm0;
  float filterTerm1;
  float filterTerm2;
  float timeConstant;
19. timeConstant=0.5; // default 1.0
20. filterTerm0 = (newAngle - filterAngle) * timeConstant * timeConstant;
  filterTerm2 += filterTerm0 * dt;
  filterTerm1 = filterTerm2 + ((newAngle - filterAngle) * 2 * timeConstant) + newRate;
  filterAngle = (filterTerm1 * dt) + filterAngle;
21. return previousAngle; // This is actually the current angle, but is stored for the next iteration
  }
  
  */

clear a specific area of screen

[4 Replies]
- 28-Nov-2012 01:08 PM
- Forum: General Discussion
hi.

My app draws a curve, using point() .

To clear the curve I tried to draw a rectangle, which was too slow approach as I lost lots of point drawings.

Is there a faster way to clear a specific area of the assigned screen? (im not using any third parameter in SIZE function).

My other suggestions would be:

1) Save coordinates of points in an array and redraw them with the backgroundcolor.

2) Set a flag in serialevent function and draw rectangle in draw function when flag set. (probably slow too)

3) Ask for your experience before I dig into the above.

Thank You, regards

please help with serial and point

[1 Reply]
- 28-Nov-2012 11:55 AM
- Forum: Core Library Questions
hello.

Im trying to draw points according to incomming doubles, which are converted to floats, using point(x,y).

Ive checked content of the vals[] ,xin,yin,zin and they seemes to contain the values sent from arduino.

Trying to plot points either give me no points or the below error. (below the code)

Would appreicate any help. Regards

Part of processing code:
1. void serialEvent(Serial p) {
  inString = p.readString();
  lengde=inString.length();
  inString=inString.substring(0, lengde-1);
  float[] vals = float(splitTokens(inString,","));
  xin=vals[0];
  yin=vals[1];
  zin=vals[2];
  point(192.0+teller,xin);
  teller++;
  if (teller==800) {teller=192;}
  }
Part of Arduino code. The x,y,z are double datatypes.
1. //Output the caculations
  Serial.print(x);
  Serial.print(",");
  Serial.print(y);
  Serial.print(",");
  Serial.println(z);
2. delay(10);
.......

Stable Library
=========================================
Native lib Version = RXTX-2.1-7
Java lib Version = RXTX-2.1-7
[0] "COM1"
[1] "COM4"
error, disabling serialEvent() for //./COM4
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at processing.serial.Serial.serialEvent(Unknown Source)
at gnu.io.RXTXPort.sendEvent(RXTXPort.java:732)
at gnu.io.RXTXPort.eventLoop(Native Method)
at gnu.io.RXTXPort$MonitorThread.run(RXTXPort.java:1575)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 1
at trial2.serialEvent(trial2.java:75)
... 8 more
java.lang.NullPointerException
at processing.mode.java.runner.Runner.findException(Runner.java:682)
at processing.mode.java.runner.Runner.reportException(Runner.java:627)
at processing.mode.java.runner.Runner.exception(Runner.java:570)
at processing.mode.java.runner.EventThread.exceptionEvent(EventThread.java:367)
at processing.mode.java.runner.EventThread.handleEvent(EventThread.java:255)
at processing.mode.java.runner.EventThread.run(EventThread.java:89)

serial string communication

[1 Reply]
- 24-Nov-2012 03:39 PM
- Forum: Integration and Hardware
hello.

Im trying to send strings between an accelerometer connected to arduino, and processing. Some times it works (i confirm receipt by printing them out in processing) and sometimes dont work. Anyone could have a sneakpeak into code regarding

communication to see what might cause the unstabillity?

The Arduino sketch is furthest below.

Thanks in advance. Regards
1. import processing.serial.*;
  Serial port;
  int environx,environy,environz;
  int rotx=90,roty=0,rotz=0; //holds rotation parameters
  int linezero; // holds (1/6)- 36 of displayheight
  int line1,line2,line3,line4,line5,line6;
  float line90,line270;
  boolean flag1,flag2,flag3,flag4,flag5,flag6,flag7,flag8,flag9,flag10=false;
  // flag 1-3 = accel x,y,z flag4 = Kalman filter flag 5 = PID flag 7-9 = gyro x,y,z
  float xposa,yposa,zposa=0; // start of accelerator graph
  int xposg,yposg,zposg=0; // start of gyroscope graph
  float xin,yin,zin =0.0; //input from serial port
  int lf=10; // linefeed in ascii
  String input;
2. void setup()
  {
  environx=displayWidth;
  environy=displayHeight-36;
  linezero=environy/6;
  line1=linezero;line2=linezero*2;line3=linezero*3;line4=linezero*4;line5=linezero*5;line6=linezero*6;line90=linezero*1.5;line270=linezero*0.5;
  size(environx-32, environy,P2D);
  
     port = new Serial(this, Serial.list()[1], 9600);
     port.clear();
     input = port.readStringUntil(lf);
     input = null;
     // don't generate a serialEvent() unless you get a newline character:
     port.bufferUntil('\n');
     // port.write(65);
3. // smooth();
  // frameRate(25);
  drawlines();
               // pushMatrix();
               // rotatebox(rotx,roty,rotz);
               // popMatrix();
  makebutton(192                            ,line2+24,66,33,1,"ACCEL-X",8,255,255,255,0,0,180);
  makebutton(192+64+32                      ,line2+24,66,33,1,"ACCEL-Y",8,255,255,255,0,0,180);
  makebutton(192+64+32+64+32                ,line2+24,66,33,1,"ACCEL-Z",8,255,255,255,0,0,180);
  makebutton(192+64+32+64+32+64+32+32       ,line2+24,66,33,1,"KALMAN",8,255,255,255,0,180,0);
  makebutton(192+64+32+64+32+64+32+32+64+32 ,line2+24,66,33,1,"P-I-D",8,255,255,255,180,0,0);
  
  makebutton(192                            ,line4-56,66,33,1,"GYRO-X",8,255,255,255,240,140,12);
  makebutton(192+64+32                      ,line4-56,66,33,1,"GYRO-Y",8,255,255,255,240,140,12);
  makebutton(192+64+32+64+32                ,line4-56,66,33,1,"GYRO-Z",8,255,255,255,240,140,12);
  // makebutton(192+64+32+64+32+64+32+32       ,line2+56,66,33,1,"KALMAN",8,255,255,255,0,180,0);
  // makebutton(192+64+32+64+32+64+32+32+64+32 ,line2+56,66,33,1,"P-I-D",8,255,255,255,180,0,0);
4. }
5. void draw() {
                // background(200);
  
               // pushMatrix();
               // rotatebox(rotx,roty,rotz);
               // popMatrix();
  
  
               // rotx++;
6. }
7. void drawlines()
  {
  stroke(127);
  line(192,line1,180,line1);
  line(180,line2,environx-64,line2);
  line(180,line90,192,line90);
  line(180,line270,192,line270);
  
  line(192,line4,environx-64,line4);
  line(192,line5,environx-64,line5);
  line(192,line6,environx-64,line6);
  fill(0,0,0);
  text("359", 150,10 );
  text("270", 150,line270);
  text("180",150,line1);
  text("90", 150,line90);
  text("0", 150, line2);
  //
  // text("180",150,line3);
  // text("0", 150, line4);
  text("359", 150,line4);
  text("180",150,line5);
  text("0", 150, line6);
  
  line(192,0,192,line2);
  
  // draw vertical lines
  // line(192,environy/3,192,environy/3-180);
8. }
10. void rotatebox(int a,int b,int c)
  {
  translate(environx/2,environy/2, 0);
  rotateX(radians(a));
  rotateY(radians(b));
  rotateX(radians(c));
  noFill();
  box(environx/6, environy/6, 30);
  }
12. void makebutton(int bposx,int bposy,int bwidth,int bheight,int bscale,String tekst,int tekstsize, int trcolor,int tgcolor,int tbcolor,int brcolor,int bgcolor,int bbcolor)
  {
  fill(brcolor,bgcolor,bbcolor);
  rect(bposx,bposy,bwidth*bscale,bheight*bscale);
  fill(trcolor,tgcolor,tbcolor);
  // textSize(tekstsize);
  text(tekst, bposx+((bwidth-textWidth(tekst))/2), bposy+(bheight/2)+tekstsize/2);
  }
13. void serialEvent (Serial port) {
  
                                // get the ASCII string:
                                // input = port.readStringUntil('*');
                                // String input = port.readString();
                                while (port.available() > 0) {
                                                        input = port.readStringUntil(lf);
                                                        if (input != null) {
                                                                            // Print message received
                                                                            println( "Receiving:" + input);
                                                                            // trim off any whitespace
                                                                            // input = trim(input);
                                                                            int[] vals = int(splitTokens(input,", "));
                                                                            xin=vals[0];
                                                                            yin=vals[1];
                                                                            zin=vals[2];
                                                                            println( "xin= "+xin);
                                                                            // println( "y= "+yin);
                                                                            // println( "z= "+zin);
                                                                            // println(line2);
                                                                            // println(xposa);
                                                                            point(191.0+xposa,(float)line2-xin);
                                                                            // println((float)line2+(float)xin);
  
                                                                            // start at beginning of graph and clear graph, if end of graph
                                                                            if (xposa >= displayWidth-64.0) {
                                                                                                           xposa = 191;
                                                                                                           // rect(193,line2-1,environx-192-64,line2-1);
                                                                                                          }
  
                                                                            // increment the horizontal position:
                                                                            xposa++;
                                                                            yposa++;
                                                                            zposa++;
  
                                                    } // end if input !=null
  
                                  } //end while
  } // end event
----

arduino sketch:
1. //////////////////////////////////////////////////////////////////
  //©2011 bildr
  //Released under the MIT License - Please reuse change and share
  //Simple code for the ADXL335, prints calculated orientation via serial
  //////////////////////////////////////////////////////////////////
2. //Analog read pins
  const int xPin = 0;
  const int yPin = 1;
  const int zPin = 2;
  String accel;
  String string;
  //The minimum and maximum values that came from
  //the accelerometer while standing still
  //You very well may need to change these
  int minVal = 265;
  int maxVal = 402;
3. //to hold the caculated values
  double x;
  double y;
  double z;
4. void setup(){
  Serial.begin(9600);
  }
5. void loop(){
6. //read the analog values from the accelerometer
  int xRead = analogRead(xPin);
  int yRead = analogRead(yPin);
  int zRead = analogRead(zPin);
7. //convert read values to degrees -90 to 90 - Needed for atan2
  int xAng = map(xRead, minVal, maxVal, -90, 90);
  int yAng = map(yRead, minVal, maxVal, -90, 90);
  int zAng = map(zRead, minVal, maxVal, -90, 90);
8. //Caculate 360deg values like so: atan2(-yAng, -zAng)
  //atan2 outputs the value of -π to π (radians)
  //We are then converting the radians to degrees
  x = RAD_TO_DEG * (atan2(-yAng, -zAng) + PI);
  y = RAD_TO_DEG * (atan2(-xAng, -zAng) + PI);
  z = RAD_TO_DEG * (atan2(-yAng, -xAng) + PI);
  
  x=constrain(x,0,360);
  y=constrain(y,0,360);
  z=constrain(z,0,360);
9. accel=doubleToString(x,0)+","+doubleToString(y,0)+","+doubleToString(z,0);
  //Output the caculations
  // Serial.print("x: ");
10. Serial.println(accel);
  
  // Serial.println((int)x);
  // Serial.print(" | y: ");
  // Serial.print(y);
  // Serial.print(" | z: ");
  // Serial.println(z);
11. delay(150);//just here to slow down the serial output - Easier to read
  }
12. //Rounds down (via intermediary integer conversion truncation)
  String doubleToString(double input,int decimalPlaces){
  if(decimalPlaces!=0){
  string = String((int)(input*pow(10,decimalPlaces)));
  if(abs(input)<1){
  if(input>0)
  string = "0"+string;
  else if(input<0)
  string = string.substring(0,1)+"0"+string.substring(1);
  }
  return string.substring(0,string.length()-decimalPlaces)+"."+string.substring(string.length()-decimalPlaces);
  }
  else {
  return String((int)input);
  }
  }

cant get my app to work

[1 Reply]
- 20-Nov-2012 12:30 PM
- Forum: Core Library Questions
hello. Im new to serial topics.

I try to get a program written in Arduino to communicate with Processing application in win7 64 bit environment.

I did download processing for 32 bit environment and uses that.

I try to run example from J. Blum writing code for Arduino and Processing. Ive checked serial output from Arduino its ok, so guess the fault is in programming on Processing site.

Can You kindly tell if the error I get is due to serial handling or other topics so I know the correct thread to post further requests?

Thank You

heres the error:

[0] "COM1"
[1] "COM4"
error, disabling serialEvent() for //./COM4
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at processing.serial.Serial.serialEvent(Unknown Source)
at gnu.io.RXTXPort.sendEvent(RXTXPort.java:732)
at gnu.io.RXTXPort.eventLoop(Native Method)
at gnu.io.RXTXPort$MonitorThread.run(RXTXPort.java:1575)
Caused by: java.lang.NullPointerException
at sun.misc.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:989)
at java.lang.Float.valueOf(Float.java:388)
at java.lang.Float.<init>(Float.java:489)
at processing.core.PApplet.parseFloat(PApplet.java:8573)
at processing.core.PApplet.parseFloat(PApplet.java:8568)
at accelshow.serialEvent(accelshow.java:133)
... 8 more

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