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Hi guys, I'm trying the Example 08 from "Getting started with Arduino"

I used the code but there are compilation errors:

the first one is "include does not name a type"
on
Quote
include processing.serial.*;

and when i remove the include line, i get another error " Serial does not name a type"
on
Quote
Serial port;

My board is Arduino UNO

Quote
// Example 08A: Arduino networked lamp
// parts of the code are inspired
// by a blog post by Tod E. Kurt (todbot.com)
//
// Copy and paste this example into an empty Processing sketch

include processing.serial.*;

String feed = "http://blog.makezine.com/index.xml";

int interval = 10;  // retrieve feed every 60 seconds;
int lastTime;       // the last time we fetched the content

int love    = 0;
int peace   = 0;
int arduino = 0;

int light = 0;  // light level measured by the lamp

Serial port;
color c;
String cs;

String buffer = ""; // Accumulates characters coming from Arduino

PFont font;

void setup() {
  size(640,480);
  frameRate(10);    // we don't need fast updates

  font = loadFont("HelveticaNeue-Bold-32.vlw"); 
  fill(255);  
  textFont(font, 32);
  // IMPORTANT NOTE:
  // The first serial port retrieved by Serial.list()
  // should be your Arduino. If not, uncomment the next
  // line by deleting the // before it, and re-run the
  // sketch to see a list of serial ports. Then, change
  // the 0 in between [ and ] to the number of the port
  // that your Arduino is connected to.
  //println(Serial.list());
  String arduinoPort = Serial.list()[0];
  port = new Serial(this, arduinoPort, 9600); // connect to Arduino

  lastTime = 0;
  fetchData();
}

void draw() {
  background( c );
  int n = (interval - ((millis()-lastTime)/1000));

  // Build a colour based on the 3 values
  c = color(peace, love, arduino);
  cs = "#" + hex(c,6); // Prepare a string to be sent to Arduino

  text("Arduino Networked Lamp", 10,40);
  text("Reading feed:", 10, 100);
  text(feed, 10, 140);

  text("Next update in "+ n + " seconds",10,450);
  text("peace" ,10,200);
  text(" " + peace, 130, 200);
  rect(200,172, peace, 28);

  text("love ",10,240);
  text(" " + love, 130, 240);
  rect(200,212, love, 28);

  text("arduino ",10,280);
  text(" " + arduino, 130, 280);
  rect(200,252, arduino, 28);

  // write the colour string to the screen
  text("sending", 10, 340);
  text(cs, 200,340);

  text("light level", 10, 380);
  rect(200, 352,light/10.23,28); // this turns 1023 into 100

  if (n <= 0) {
    fetchData();
    lastTime = millis();
  }

  port.write(cs); // send data to Arduino

  if (port.available() > 0) { // check if there is data waiting
    int inByte = port.read(); // read one byte
    if (inByte != 10) { // if byte is not newline
      buffer = buffer + char(inByte); // just add it to the buffer
    }
    else {

      // newline reached, let's process the data
      if (buffer.length() > 1) { // make sure there is enough data

        // chop off the last character, it's a carriage return
        // (a carriage return is the character at the end of a
        // line of text)
        buffer = buffer.substring(0,buffer.length() -1);

        // turn the buffer from string into an integer number
        light = int(buffer);

        // clean the buffer for the next read cycle
        buffer = "";

        // We're likely falling behind in taking readings
        // from Arduino. So let's clear the backlog of
        // incoming sensor readings so the next reading is
        // up-to-date.
        port.clear();
      }
    } 
  }

}

void fetchData() {
  // we use these strings to parse the feed
  String data;
  String chunk;

  // zero the counters
  love    = 0;
  peace   = 0;
  arduino = 0;
  try {
    URL url = new URL(feed);  // An object to represent the URL
    // prepare a connection   
    URLConnection conn = url.openConnection(); 
    conn.connect(); // now connect to the Website

    // this is a bit of virtual plumbing as we connect
    // the data coming from the connection to a buffered
    // reader that reads the data one line at a time.
    BufferedReader in = new
      BufferedReader(new InputStreamReader(conn.getInputStream()));

    // read each line from the feed
    while ((data = in.readLine()) != null) {

      StringTokenizer st =
        new StringTokenizer(data,"\"<>,.()[] ");// break it down
      while (st.hasMoreTokens()) {
        // each chunk of data is made lowercase
        chunk= st.nextToken().toLowerCase() ;

        if (chunk.indexOf("love") >= 0 ) // found "love"?
          love++;    // increment love by 1
        if (chunk.indexOf("peace") >= 0)   // found "peace"?
          peace++;   // increment peace by 1
        if (chunk.indexOf("arduino") >= 0) // found "arduino"?
          arduino++; // increment arduino by 1
      }
    }

    // Set 64 to be the maximum number of references we care about.
    if (peace > 64)   peace = 64;
    if (love > 64)    love = 64;
    if (arduino > 64) arduino = 64;

    peace = peace * 4;     // multiply by 4 so that the max is 255,
    love = love * 4;       // which comes in handy when building a
    arduino = arduino * 4; // colour that is made of 4 bytes (ARGB)
  } 
  catch (Exception ex) { // If there was an error, stop the sketch
    ex.printStackTrace();
    System.out.println("ERROR: "+ex.getMessage());
  }

}


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I don't think you connected the grounds, Dave.
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You're trying to compile Processing in the Arduino IDE.

Processing is PC-side code, and uses the Processing IDE.

Code:
// Copy and paste this example into an empty Processing sketch


How to spot the difference: Processing sketches have a "setup" and "draw", but Wiring (Arduino) have "setup" and "loop".

When posting code, please use the "#" (code) icon on the editor's toolbar.
« Last Edit: July 21, 2011, 03:11:32 am by AWOL » Logged

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Hi,

Yes I got the same error code.
Thanks for your answer, for newbies (just like me) this means go to processing dot org and download and install the program, piece of cake, it has an exe file.

Then copy the code into the processing software, also easy, it looks the same as Arduino.

I am typing this, because I didn't know what Awol meant, after trying out a little I found the solution.   

Patrick
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I don't think you connected the grounds, Dave.
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@techdutchy: Thanks for doing a search and some thinking for yourself before posting - this is the kind of behaviour we need more of!
Keep it up!
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Do not send technical questions via personal messaging - they will be ignored.

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It should read

Code:
import processing.serial.*;
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