Whats wrong with my code? OpenOSC, Processing and Arduino - LED brightness

KasperA

Im trying to change the brightness of a LED. The brightness is controlled by a slider on my iPhone that communicates with Processing though OpenOSC. The slider sends values between 0 and 255. My idea is that OpenOSC communicates with Processing. Processing then communicates with Arduino though serial communication.

I managed to establish the connection between the iPhone and Processing. I also managed to make an Arduino code that works when i manually type the serial input. For some reason the whole thing doesn't work. I guess the problem is the serial communication between Processing and the Arduino.

Processing code:

Arduino code:

PhiLho

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KasperA

Thanks - Didn't knew how to format the code:

Arduino:

int ledPin = 9;
int brightness = 0;

void setup() 
{ 
  pinMode(ledPin, OUTPUT); 
  digitalWrite(ledPin, LOW);
  Serial.begin(9600); 
}

void loop() 
{
  if (Serial.available() > 0)
  {
    brightness = Serial.parseInt();
    Serial.setTimeout(50);
    Serial.println(brightness); 
  }
  analogWrite(ledPin, brightness); 
}

Processing:

import processing.serial.*;
import oscP5.*;
import netP5.*;

float red = 0; 

OscP5 oscP5;
Serial Arduino;

void setup() {
  size(320, 480);
  background(100); 

  oscP5 = new OscP5(this, 8000);
  Arduino = new Serial(this, Serial.list()[2], 9600);
}

void oscEvent(OscMessage ThisOscMessage) {
  String addr = ThisOscMessage.addrPattern();
  float val = ThisOscMessage.get(0).floatValue();

  if (addr.equals("/1/red/")) {
    red = val;
    println(val);
    Arduino.write("val");
  }
}

void draw() {
  background(red+50, 0, 0);
  fill(0);
  rect(124, 39, 60, 255);
  fill(red, 40, 40);
  rect(124, 255+39, 60, -red);
}

My idea is that the problem is line 25 in the Processing code:

Arduino.write("val");

I would prefer the line to be this but then it gives an error:

Arduino.write(val);

PhiLho

Try: Arduino.write(str(val));