Help with Arduino/Processing

Hello, I’m trying to use Processing with Arduino. The code in Arduino is “StandarFirmdata”. And this is the code in processing (is one of the examples):

import processing.serial.*;

import cc.arduino.*;

Arduino arduino;

color off = color(4, 79, 111);
color on = color(84, 145, 158);

int values = { Arduino.LOW, Arduino.LOW, Arduino.LOW, Arduino.LOW,
Arduino.LOW, Arduino.LOW, Arduino.LOW, Arduino.LOW, Arduino.LOW,
Arduino.LOW, Arduino.LOW, Arduino.LOW, Arduino.LOW, Arduino.LOW };

void setup() {
size(470, 200);

println(Arduino.list());
arduino = new Arduino(this, Arduino.list()[0], 57600); //I have problems in this line.

for (int i = 0; i <= 13; i++)
arduino.pinMode(i, Arduino.OUTPUT);
}

void draw() {
background(off);
stroke(on);

for (int i = 0; i <= 13; i++) {
if (values == Arduino.HIGH)

  • fill(on);*
  • else*
  • fill(off);*

_ rect(420 - i * 30, 30, 20, 20);_

  • }*
    }
    void mousePressed()
    {

  • int pin = (450 - mouseX) / 30;*

  • if (values[pin] == Arduino.LOW) {*

  • arduino.digitalWrite(pin, Arduino.HIGH);*

  • values[pin] = Arduino.HIGH;*

  • } else {*

  • arduino.digitalWrite(pin, Arduino.LOW);*

  • values[pin] = Arduino.LOW;*

  • }*
    }[/quote]
    When I click run in Processing I get this:
    > Stable Library
    > =========================================
    > Native lib Version = RXTX-2.1-7
    > Java lib Version = RXTX-2.1-7
    > [0] “/dev/ttyACM0”
    > [1] “/dev/ttyS0”
    > Exception in thread “Animation Thread” java.lang.IllegalAccessError: tried to access class processing.core.PApplet$RegisteredMethods from class cc.arduino.Arduino$SerialProxy
    > at cc.arduino.Arduino$SerialProxy.(Arduino.java:119)
    > at cc.arduino.Arduino.(Arduino.java:168)
    > at arduino_output.setup(arduino_output.java:41)
    > at processing.core.PApplet.handleDraw(PApplet.java:2095)
    > at processing.core.PGraphicsJava2D.requestDraw(PGraphicsJava2D.java:197)
    > at processing.core.PApplet.run(PApplet.java:1998)
    > at java.lang.Thread.run(Thread.java:662)
    My O.S is Linux Ubuntu 12.04 but I have the same problem on Windows7, please help me!

Hi, we faced the same problem a couple of days ago. I just uploaded a fixed version of the library to https://github.com/pardo-bsso/processing-arduino . Let me know how it works for you.

Thanks pardo_bsso - I had that problem and you had the solution. :)

Hello

I have follow the intructions from http://playground.arduino.cc/interfacing/processing to install "Processing" and now I have exactly the same problem as Euromas tells trying to communicate with Arduino

I have tried the Pardo,s solution , but it does not work for me , the message of error is practically the same as Euromas

Any advice?

Thanks pardo_bsso, I had the same problem with Processing 2 on Win XP and your library fixed it. Now I can use Processing 2 with the Arduino.

Thanks.

Thanks pardo_bsso!