/*
  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.

  https://www.arduino.cc/en/Tutorial/BuiltInExamples/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

  ----------begin_max5_patcher----------
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  -----------end_max5_patcher-----------

*/