8x8 WS2812b Animated Fake Equalizer Effect.

by wilsnico in Circuits > Arduino

3 Views, 0 Favorites, 0 Comments

8x8 WS2812b Animated Fake Equalizer Effect.

FRG0MBJM6M7DVW6.png

Fake Equalizer effect for 8x8 matrix.

Supplies

Resistor

Arduino

Adafruit NeoPixel NeoMatrix 8x8 - 64 RGB LED Pixel Matrix

Or another WS2812B 8x8 matrix .

Info

Fake Equalizer effect for 8x8 ws2812b matrix.

Code is in void and void is called in loop.

Connection Resistor to Matrix on PIN 5.

Code

#include "Adafruit_NeoPixel.h"
#define WS2812b_PIN 5
#define WS2812b_PIXELS 64
#define WS2812b_WIDTH 8
#define WS2812b_HEIGHT 8
Adafruit_NeoPixel WS2812b = Adafruit_NeoPixel(WS2812b_PIXELS, WS2812b_PIN, NEO_GRB + NEO_KHZ800);

struct Band {
float current;
float target;
unsigned long lastChange;
unsigned long changeInterval;
};
Band bands[8];
unsigned long lastBeatTime = 0;
const unsigned long beatInterval = 500;

void setup() {
Serial.begin(9600);
WS2812b.begin();
WS2812b.clear();
WS2812b.show();
for (int i = 0; i < 8; i++) {
bands[i].current = 0;
bands[i].target = 0;
bands[i].lastChange = 0;
bands[i].changeInterval = (i >= 6) ? random(300, 600) : random(50, 200);
}}

void visualizeEqualizer() {
WS2812b.setBrightness(100);
unsigned long now = millis();
if (now - lastBeatTime >= beatInterval) {
lastBeatTime = now;
for (int i = 6; i < 8; i++) {
bands[i].target = 8;
bands[i].lastChange = now;
bands[i].changeInterval = 100;
}}
for (int i = 0; i < 8; i++) {
if (now - bands[i].lastChange > bands[i].changeInterval) {
if (i >= 6) {
bands[i].target = random(4, 7);
bands[i].changeInterval = random(300, 600);
}
else if (i == 5) {
bands[i].target = random(4, 6);
bands[i].changeInterval = random(300, 600);
}
else if (i == 4) {
bands[i].target = random(2, 6);
bands[i].changeInterval = random(50, 150);
}
else if (i == 3) {
bands[i].target = random(2, 5);
bands[i].changeInterval = random(50, 150);
}
else if (i == 2) {
bands[i].target = random(2, 5);
bands[i].changeInterval = random(50, 150);
}
else {
bands[i].target = random(1, 6);
bands[i].changeInterval = random(50, 150);
}
bands[i].lastChange = now;
}
float delta = bands[i].target - bands[i].current;
bands[i].current += delta * 0.2;
bands[i].current = constrain(bands[i].current, 0, 8);
}
WS2812b.clear();
for (int c = 0; c < 8; c++) {
int l = round(bands[c].current);
l = constrain(l, 0, 8);
for (int j = 0; j < l; j++) {
int row = j;
int column = c;
int index = row * WS2812b_WIDTH + column;
if (c >= 5) {
if (row >= 5) {
WS2812b.setPixelColor(index, WS2812b.Color(255, 0, 0));
}
else if (row >= 3) {
WS2812b.setPixelColor(index, WS2812b.Color(255, 255, 0));
}
else {
WS2812b.setPixelColor(index, WS2812b.Color(0, 255, 0));
}}
else {
if (row >= 5) {
WS2812b.setPixelColor(index, WS2812b.Color(200, 200, 0));
}
else if (row >= 3) {
WS2812b.setPixelColor(index, WS2812b.Color(150, 150, 0));
}
else {
WS2812b.setPixelColor(index, WS2812b.Color(0, 150, 0));
}}}}
WS2812b.show();
delay(10);
}

void loop() {
visualizeEqualizer();
}