string function

sitaramar

Dear friends,

Through the following arduino program , I am sending float lat , lng values in concatenated string form through arduino serial port, sequentially . This program is working successfully. I am able to see concatenated string in serial port of arduino IDE.

String lat="17.372651",lng="78.552167";  

void setup()

{
    Serial.begin(9600);

  }

void loop()

  {
   String op = "";

          op.concat(lat);

          op.concat("x");

          op.concat(lng);

          Serial.print(op); 

          delay(2000);
  }

I am trying to read the concatenated string from serial port of arduino through following processing program and split the string and get individual lat,lng string values.

import processing.serial.*;

     String[] OP;

     String inBuffer,lat,lng,temp;

int portIndex = 4; 

Serial myPort; 


void setup() {

   println(Serial.list());

  myPort = new Serial(this, Serial.list()[portIndex], 9600);

              }

void draw()
{

 while (myPort.available() > 0) {

     inBuffer = myPort.readString();

   if (inBuffer != null) {

      inBuffer=trim(inBuffer);

      print(inBuffer);

     OP = split(inBuffer, "x"); 

 OP[0]=trim (OP[0] );

     print (OP[0]);

  OP[1]=trim (OP[1] );

    print (OP[1]);


                               }


                                           }


 }               

When I run above program upto print(inBuffer); it is working and inBuffer value shown correctly and continuously in processing console window.
When I run above program upto print (OP[0]);); it is working and other values are also displayed along with OP[0] in erratic way.
When I run above program upto print (OP[1]);); I am getting message "Array index out of bounds exception:1".

I request anybody to advise.

_vk

Please, read, and format the code so people can help you. :)

To newcomers in this forum: read attentively these

PhiLho

Formatted and moved to proper category... You can also benefit from using the auto-formatting in the PDE! (Ctrl+T)

"Array index out of bounds exception:1" means the OP array has only one entry, so OP[1] fails.