Virtual Color Mixer

/*

  This example reads three analog sensors (potentiometers are easiest) and sends

  their values serially. The Processing and Max/MSP programs at the bottom take

  those three values and use them to change the background color of the screen.

  The circuit:

  - potentiometers attached to analog inputs 0, 1, and 2

  created 2 Dec 2006

  by David A. Mellis

  modified 30 Aug 2011

  by Tom Igoe and Scott Fitzgerald

  This example code is in the public domain.

  http://www.arduino.cc/en/Tutorial/VirtualColorMixer

*/

const int redPin = A0;      // sensor to control red color

const int greenPin = A1;    // sensor to control green color

const int bluePin = A2;     // sensor to control blue color

void setup() {

  Serial.begin(9600);
}

void loop() {

  Serial.print(analogRead(redPin));

  Serial.print(",");

  Serial.print(analogRead(greenPin));

  Serial.print(",");

  Serial.println(analogRead(bluePin));
}

/* Processing code for this example

  // This example code is in the public domain.

  import processing.serial.*;

  float redValue = 0;        // red value

  float greenValue = 0;      // green value

  float blueValue = 0;       // blue value

  Serial myPort;

  void setup() {

    size(200, 200);

    // List all the available serial ports

    // if using Processing 2.1 or later, use Serial.printArray()

    println(Serial.list());

    // I know that the first port in the serial list on my Mac is always my

    // Arduino, so I open Serial.list()[0].

    // Open whatever port is the one you're using.

    myPort = new Serial(this, Serial.list()[0], 9600);

    // don't generate a serialEvent() unless you get a newline character:

    myPort.bufferUntil('\n');

  }

  void draw() {

    // set the background color with the color values:

    background(redValue, greenValue, blueValue);

  }

  void serialEvent(Serial myPort) {

    // get the ASCII string:

    String inString = myPort.readStringUntil('\n');

    if (inString != null) {

      // trim off any whitespace:

      inString = trim(inString);

      // split the string on the commas and convert the resulting substrings

      // into an integer array:

      float[] colors = float(split(inString, ","));

      // if the array has at least three elements, you know you got the whole

      // thing.  Put the numbers in the color variables:

      if (colors.length >= 3) {

        // map them to the range 0-255:

        redValue = map(colors[0], 0, 1023, 0, 255);

        greenValue = map(colors[1], 0, 1023, 0, 255);

        blueValue = map(colors[2], 0, 1023, 0, 255);

      }

    }

  }

*/

/* Max/MSP patch for this example

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description: ''
featuredImage: ''
-----------end_max5_patcher-----------

*/