First Serial Comunication!!

Alright guys, I have my first serial conection comunication going!! Picaxe to Processing via serial/USB. I don't have this up to youtube, instead I did a quick post to Phreadz. Here is the link:

http://phreadz.com/v/2Q0FFVH6IGAI/

***Update****

Just like Voodoo, I got some code working as well. The first video has the picaxe spitting out 4 bytes (randomly picked by me when I wrote the code) as I hit one of the 3 buttons. Processing then takes these numbers and draws 1 of 3 lines.

Having this working, I moved on to changing data. I grabbed walters remote and used the joystick to send 2 bytes coresponding to the cordinates I wanted the line to end on -the start cordinates were always 0,0. Although I was using the remote, it was hardwired and used sertxd and serrxd commands. (this is the second video)

I will attach the code soon --for now, I am off to go fly planes with my boys.

 Code: (second video, processing side)

import processing.serial.*;

int bgcolor;                 // Background color
int fgcolor;                 // Fill color
Serial myPort;                       // The serial port
int[] serialInArray = new int[4];    // Where we'll put what we receive
int serialCount = 0;                 // A count of how many bytes we receive
int xpos, ypos;   
int expos, eypos;             // Starting position of the ball
boolean firstContact = false;        // Whether we've heard from the microcontroller

void setup() {
  size(400, 400);  // Stage size
  noStroke();      // No border on the next thing drawn

  // Set the starting position of the ball (middle of the stage)
  xpos = width/2;
  ypos = height/2;
  expos = width/2;
  eypos = height/2;

  // Print a list of the serial ports, for debugging purposes:
  println(Serial.list());

  // I know that the first port in the serial list on my mac
  // is always my  FTDI adaptor, so I open Serial.list()[0].
  // On Windows machines, this generally opens COM1.
  // Open whatever port is the one you're using.
  String portName = Serial.list()[0];
  myPort = new Serial(this, "COM15", 4800);
}

void draw() {
  background(200);
  fill(fgcolor);
  stroke (0);
  strokeWeight(4);
  // Draw the shape
  line(xpos, ypos, expos, eypos);
}

void serialEvent(Serial myPort) {
  // read a byte from the serial port:
  int inByte = myPort.read();
  // if this is the first byte received, and it's an A,
  // clear the serial buffer and note that you've
  // had first contact from the microcontroller.
  // Otherwise, add the incoming byte to the array:
  if (firstContact == false) {
    if (inByte == 'A') {
      println (inByte);
      myPort.clear();          // clear the serial port buffer
      firstContact = true;     // you've had first contact from the microcontroller
      myPort.write('A');       // ask for more
    }
  }
  else {
    // Add the latest byte from the serial port to array:
    serialInArray[serialCount] = inByte;
    serialCount++;

    // If we have 3 bytes:
    if (serialCount > 3 ) {
      xpos = serialInArray[0];
      ypos = serialInArray[1];
      expos = serialInArray[2];
      eypos = serialInArray[3];
     
      // print the values (for debugging purposes only):
      println(xpos + "\t" + ypos + "\t" + expos +"\t" + eypos);

      // Send a capital A to request new sensor readings:
      delay (100);
      myPort.write('A');
      // Reset serialCount:
      serialCount = 0;
    }
  }
}

 

Code: (for the second video)