Tom Gerhardt

The Absolute Machine

MULTI-SENSOR SERIAL CODE

The Processing Code:

import processing.serial.Serial;

public static int packetSize = 4;

int readBuffer[] = new int[ packetSize ]; int readBufferPos = 0; int endOfPacket = 255;

int currentVals[] = new int[ packetSize ]; int latestValue = 0;

Serial ser;

void setup() {

  size( 300,300 );
  //		println( Serial.list());
  ser = new Serial( this,"/dev/tty.usbserial-FTF3JUAW", 9600 );

}

void draw() {

  background( 255 );

  //draw circles
  for( int v=0;v<packetSize;v++ )
  {
    pushMatrix();
    {
      //x
      if( v==0 || v==1 ) translate( 200,0 );
      else translate( 100,0 );
      //y 
      if( v==1 || v==2 ) translate( 0,200 );
      else translate( 0,100 );
      //draw
      this.ellipse( 0,0,currentVals[v]*0.4f,currentVals[v]*0.4f );
    }
    popMatrix();
  }

}

void serialEvent( Serial p ) {

  int inByte = p.read();
  //check bounds
  if( inByte < 0 || inByte > 255 ) return;
  //check for end of packet
  if( inByte == endOfPacket )
  {
    processPacket( readBuffer );//send vals
    readBufferPos = 0;//reset pos
    return;//exit
  }
  //check for overflow
  if( readBufferPos >= packetSize )
  {
    readBufferPos = 0;//reset buffer pos
    return; //exit
  }
  //record
  readBuffer[ readBufferPos ] = inByte;
  readBufferPos++;

}

void processPacket( int[] packet ) {

  if( packet.length != packetSize ) return;

  //record
  for( int v=0;v<packetSize;v++ )
  {
    currentVals[v] = packet[v];
  }

  //		println( packet[0] + "\t" + packet[1] + "\t" + packet[2] + "\t" + packet[3] );

}

The Arduino Code:

int analogIn0 = 0; int analogIn1 = 0; int analogIn2 = 0; int analogIn3 = 0;

void setup() {

  Serial.begin( 9600 );

}

void loop() {

  //read all analog inputs
  analogIn0 = analogRead( 0 );
  analogIn1 = analogRead( 1 );
  analogIn2 = analogRead( 2 );
  analogIn3 = analogRead( 3 );

  //scale vals 0-254 (255 reserved for end of packet)
  analogIn0 = analogIn0 * 0.25;
  analogIn1 = analogIn1 * 0.25;
  analogIn2 = analogIn2 * 0.25;
  analogIn3 = analogIn3 * 0.25;

  //check bounds
  if( analogIn0 > 254 ) analogIn0 = 254;
  if( analogIn1 > 254 ) analogIn1 = 254;
  if( analogIn2 > 254 ) analogIn2 = 254;
  if( analogIn3 > 254 ) analogIn3 = 254;

  //send packet
  Serial.print( analogIn0, BYTE );
  Serial.print( analogIn1, BYTE );
  Serial.print( analogIn2, BYTE );
  Serial.print( analogIn3, BYTE );
  Serial.print( 255, BYTE); //end packet

  //delay
  //delay( 10 );

}

'What is pComp?!?!?!' ...the links:

Ars Electronica Building

'What is pComp?' links:

'What is pComp' links:
the small:

the large:

7-9pm Wednesday, why not schedule a time?

CLASS #1 09/13/2010

What is pComp Links:
the small: Robbie The Racist Robot
Tweenbots
Momo
Princes of Persuasion
The Felt Resistor

the large: http://www.swiss-miss.com/2009/05/14737.html Ars Electronica Building
Troika Cloud
The Absolute Machine

this page will be your guide to all things pComp section #2, or as I like to call it 'the best pComp section ever';
it will be updated ever so often with important info, or the choicest links you can imagine, so check back now and again.

this page will be your guide to all things pComp section #2, or as I like to call it 'the best pComp section ever';\\it will be updated ever so often with important info, or the choicest links you can imagine, so check back now and again.

this page will be your guide to all things pComp section #2, or as I like to call it 'the best pComp section ever'; it will be updated ever so often with important info, or the choicest links you can imagine, so check back now and again.

Hello there,

6:30-9pm Monday, Classroom 20 (next to pComp lab)

When is class again?

6:30-9pm Monday

7-9pm Wednesday, why not schedule a time?

Hello there, this page will be your guide to all things pComp section #2, or as I like to call it 'the best pComp section ever'.

This page will be updated ever so often with important info, or the choicest links you can imagine, so check back now and again.

I am best reached at:

tom-AT-tomgerhardt.com

My Office Hours will be:

Office Hours:

7-9pm Wednesday