serialWriteLedStripsFFT.pde

import processing.serial.*;
import ddf.minim.analysis.*;
import ddf.minim.*;

Minim minim;
AudioInput in;
FFT         fft;

Serial myPort;  // Create object from Serial class
int val;        // Data received from the serial port

int oldinval;

void setup() 
{
  size(255, 255);
  minim = new Minim(this);

  in = minim.getLineIn();
  fft = new FFT( in.bufferSize(), in.sampleRate() );

  String portName = Serial.list()[0];
  println(Serial.list());
  myPort = new Serial(this, "/dev/cu.usbmodem1411", 9600);
  println(fft.specSize());
}

void draw() {
  background(255);

  fft.forward( in.mix );

  int bassint = int(fft.getBand(4) * 8);
  int midint = int(fft.getBand(10) * 20);
  int himidint = int(fft.getBand(100) * 100);
  int hiint = int(fft.getBand(300) * 200);




  byte out[] = new byte[4];
  out[0] = byte(bassint);
  out[1] = byte(midint);
  out[2] = byte(himidint);
  out[3] = byte(hiint);
  myPort.write(out);


}