Task #1: Test the NeoPixel
Task #2: Use your computer to light up NeoPixels
Task #3: Add Music!
import processing.sound.*;
SoundFile sample;
Amplitude analysis;
import processing.serial.*;
import osteele.processing.SerialRecord.*;
Serial serialPort;
SerialRecord serialRecord;
int W; //width of the tiles
int NUM = 60; //amount of pixels
int[] r = new int[NUM]; //red of each tile
int[] g = new int[NUM]; //red of each tile
int[] b = new int[NUM]; //red of each tile
int v; //volume shown on the neopixel
void setup() {
size(640, 480);
W = width/NUM;
// load and play a sound file in a loop
sample = new SoundFile(this, "KillerQueen.wav");
sample.loop();
analysis = new Amplitude(this);
analysis.input(sample);
String serialPortName = SerialUtils.findArduinoPort();
serialPort = new Serial(this, serialPortName, 9600);
serialRecord = new SerialRecord(this, serialPort, 5);
//serialRecord.logToCanvas(false);
rectMode(CENTER);
}
void draw() {
//println(analysis.analyze());
background(255);
noStroke();
float volume = analysis.analyze();
float diameter = map(volume, 0, 1, 0, width);
fill(200, 50, floor(map(volume, 0, 0.5, 100, 255)), diameter);
circle(width/2, height/2, diameter);
v = floor(map(volume, 0, 1, 0, 60)); //the highest to light up
for (int i=0; i<NUM; i ++) {
//b[i] = floor(map(volume, 0, 0.5, 100, 255));
rect(floor(map(volume, 0, 0.8, 0, i * W + W/2)), random(0, 120), 6, 6);
rect(floor(map(volume, 0, 1.0, 0, i * W + W/2)), random(120, 200), 7, 7);
rect(floor(map(volume, 0, 1.2, 0, i * W + W/2)), random(200, 280), 9, 9);
rect(floor(map(volume, 0, 1.0, 0, i * W + W/2)), random(280, 360), 7, 7);
rect(floor(map(volume, 0, 0.8, 0, i * W + W/2)), random(360, 420), 6, 6);
}
if (frameCount % 100 == 0) {
for (int i=0; i<NUM; i ++) {
serialRecord.values[0] = i; // which pixel we change (0-59)
serialRecord.values[1] = 80; // how much red (0-255)
serialRecord.values[2] = 10; // how much green (0-255)
serialRecord.values[3] = floor(map(volume, 0, 0.5, 100, 255)); serialRecord.send();
}
}
}
In this step I tried to change the Processing sketch and combine the rectangles in task 2 with the circle in task 3, but both animate with the volume. At first, I put the “serialRecord.send(); ” part inside the for loop, which might caused the sketch to run too slow and freeze from time to time. I also tried to let the LEDs light up following the beat but just failed to do that in the given time.
Music Reference:
Queen. “Killer Queen”. Spotify. https://open.spotify.com/track/4cIPLtg1avt2Jm3ne9S1zy?si=dd5359137a904be8.