Error:disabling serialEvent() error in Processing

cyclops12

I am using processing to plot the graph for two sensor's connect to arduino analog pin 0 and 1 and controlling LED at pin 13. I am using serial data format sensor1_value , sensor2 _value /n

my processing code and arduino code is attched. While running the code I am getting erroe meaage

Error, disabling serialEvent() for COM2 null

this code works for 1st time after that it keeping showing this error and also this code works fine for single sensor.

Kindly help me...I am new to processing

my processing code is:

import processing.serial.*;

Serial myPort;
int val1, val2, scr_inc1, scr_inc2, old_x1=0, old_y1=0, old_x2=0, old_y2=0;
String inString, str1, str2;
int lf=10;

void setup()
{
  size(displayWidth-100, 600);
  String portName=Serial.list()[0];
  println(Serial.list());

  myPort=new Serial(this, portName, 9600);
  myPort.bufferUntil(lf);// use '/n'
  background(0, 0, 0);
  //smooth();
}

void draw()
{
}

void serialEvent(Serial myPort)
{
  inString=myPort.readString();
  inString=trim(inString);
  int pos=inString.indexOf(',');
  //sensor 1
  str1=inString.substring(0, (pos-1));

  val1=int(str1);
  strokeWeight(1);//line width
  stroke(62, 160, 6);
  line(old_x1, old_y1, scr_inc1, 600-val1);
  old_x1=scr_inc1;
  old_y1=600-val1;
  scr_inc1=scr_inc1+2;

  //sensor2
  int len=inString.length();

  str2=inString.substring((pos+1), (len-1));

  val2=int(str2);
  strokeWeight(1);//line width
  stroke(182, 11, 222);
  line(old_x2, old_y2, scr_inc2, 600-val2);
  old_x2=scr_inc2;
  old_y2=600-val2;
  scr_inc2=scr_inc2+2;

  //send data to arduino
  /* if(val1>500)
   {
   myPort.write('1');
   }
   if(val1<300)
   {
   myPort.write('0');
   }*/
  //restart screen
  if (scr_inc1>(displayWidth-100))
  {
    background(0, 0, 0);
    scr_inc1=-50;
    scr_inc2=-50;
    old_x1=-50;
    old_y1=0;
    old_x2=-50;
    old_y2=0;
  }
}

SilentAce

Please format the code it's difficult to read, leave one blank row from your text and press CTRL + K, or the C in the editing bar.

cyclops12

hi SilentAce ... This code works sometime and sometime its shows disabling serialEvent() error in console

plz help

PhiLho

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