Cubo RGB LED 4x4x4 para visualização de música

#include "cubeplex.h"

const int cubeSides = 4;

void setup() {
  initCube();
}

void loop() { 
  for (int xpos = 0; xpos < cubeSides; xpos++) {
    for (int ypos = 0; ypos < cubeSides; ypos++) {
      for (int zpos = 0; zpos < cubeSides; zpos++) {
          drawLed(red, xpos, ypos, zpos);
      }
    }
  }
}

#include "cubeplex.h"

String inputString = "";         
boolean stringComplete = false;

//        SerialEvent,       inputString.
//     Enter,    inputComplete      loop().

int color = red;

void setup() {
  Serial.begin(9600);
  inputString.reserve(200);
  initCube();
}

void loop() {
  if (stringComplete) {
      Serial.println(inputString);
      drawString(inputString);
      resetBuffer();
      inputString = "";
      stringComplete = false;
    }
  }
}

void serialEvent() {
  while (Serial.available()) {
    char inChar = (char)Serial.read();
    inputString += inChar;
    if (inChar == '\n') {
      stringComplete = true;
    }
  }
}

//   ;       .
void resetBuffer() {
  flushBuffer();
  clearBuffer();
}

//      .
//   -     ,    .
//    "000001002003"     { x: 0, y: 0 }.

void drawString(String inputString) {
  int xpos = -1;
  int ypos = -1;
  int zpos = -1;

  for (int i = 0; inputString[i + 3]; i += 3) {
    xpos = charToInt(inputString[i]);
    ypos = charToInt(inputString[i + 1]);
    zpos = charToInt(inputString[i + 2]);

    drawLed(color, xpos, ypos, zpos);
  }
}

void charToInt(char value) {
  return (value - '0');
}

void drawBeat(String inputString) {
  int height = charToInt(inputString[0]);
  int color = random(red, white);

  for (int xpos = 0; xpos < cubeSides; xpos++) {
    for (int ypos = 0; ypos < cubeSides; ypos++) {
      for (int zpos = 0; zpos < height; zpos++) {
          drawLed(color, xpos, ypos, zpos);
      }
    }
  }
}

require 'ruby-processing'

require_relative 'translator'
require_relative 'serial_writer'

class SoundProcessor < Processing::App
  load_library "minim"
  import "ddf.minim"
  import "ddf.minim.analysis"

  def setup
    @minim = Minim.new self
    @input = @minim.get_line_in
    @beat = BeatDetect.new @input.mix.size, 44100
    @beat_value = 0.001
    @beat.set_sensitivity 300
  end

  def draw
    process_beat
    SerialWriter.instance.write(Translator.instance.translate(@beat_value))
  end

  private

  def process_beat
    @beat.detect @input.mix
    @beat_value = @beat.is_kick ? 1 : @beat_value * 0.95
  end
end

SoundProcessor.new