【花雕动手做】看见声音，基于Arduino系列音乐可视器（13）
徒步的路上，在草丛里面捡到一些报废的有机棒本帖最后由 驴友花雕 于 2022-7-29 10:29 编辑
【花雕动手做】有趣好玩的音乐可视化系列小项目（13）---有机棒立柱灯
实验程序：15种循环灯光模式
模块接线：WS2812B接D6
MAX9814 UNO
VCC 5V
GND GND
OUT A0
/*
【花雕动手做】有趣好玩的音乐可视化系列小项目（13）---有机排比立柱灯
相关程序之：SoftwareSerial有机排比立柱灯
模块接线：WS2812B接D6
MAX9814 UNO
VCC 5V
GND GND
OUT A0
*/
#include <Adafruit_NeoPixel.h>
#include <FastLED.h>
#include <math.h>
#include <SoftwareSerial.h>
#define N_PIXELS70
#define N_PIXELS_HALF (N_PIXELS/2)
#define MIC_PIN A0
#define LED_PIN 6
#define SAMPLE_WINDOW 10
#define PEAK_HANG 24
#define PEAK_FALL 20
#define PEAK_FALL2 8
#define INPUT_FLOOR 10
#define INPUT_CEILING 30
#define DC_OFFSET0
#define NOISE 10
#define SAMPLES 60
#define TOP (N_PIXELS + 2)
#define SPEED .20
#define TOP2 (N_PIXELS + 1)
#define LAST_PIXEL_OFFSET N_PIXELS-1
#define PEAK_FALL_MILLIS 10
#define POT_PIN 4
#define BG 0
#define LAST_PIXEL_OFFSET N_PIXELS-1
#if FASTLED_VERSION < 3001000
#error "Requires FastLED 3.1 or later; check github for latest code."
#endif
#define BRIGHTNESS255
#define LED_TYPE WS2812B
#define COLOR_ORDER GRB
#define COLOR_MIN 0
#define COLOR_MAX 255
#define DRAW_MAX 100
#define SEGMENTS 4
#define COLOR_WAIT_CYCLES10
#define qsubd(x, b)((x>b)?b:0)
#define qsuba(x, b)((x>b)?x-b:0)
#define ARRAY_SIZE(A) (sizeof(A) / sizeof((A)))
struct CRGB leds;
Adafruit_NeoPixel strip = Adafruit_NeoPixel(N_PIXELS, LED_PIN, NEO_GRB + NEO_KHZ800);
static uint16_t dist;
uint16_t scale = 30;
uint8_t maxChanges = 48;
CRGBPalette16 currentPalette(OceanColors_p);
CRGBPalette16 targetPalette(CloudColors_p);
uint8_t timeval = 20;
uint16_t loops = 0;
bool samplepeak = 0;
uint16_t oldsample = 0;
bool thisdir = 0;
enum
{
} MODE;
bool reverse = true;
int BRIGHTNESS_MAX = 80;
int brightness = 20;
byte
//peak = 0,
//dotCount= 0,
volCount= 0;
int
reading,
vol,
lvl = 10,
minLvlAvg = 0,
maxLvlAvg = 512;
float
greenOffset = 30,
blueOffset = 150;
int CYCLE_MIN_MILLIS = 2;
int CYCLE_MAX_MILLIS = 1000;
int cycleMillis = 20;
bool paused = false;
long lastTime = 0;
bool boring = true;
bool gReverseDirection = false;
int myhue = 0;
uint8_t colour;
uint8_t myfade = 255;
#define maxsteps 16
int peakspersec = 0;
int peakcount = 0;
uint8_t bgcol = 0;
int thisdelay = 20;
uint8_t max_bright = 255;
unsigned int sample;
#define NSAMPLES 64
unsigned int samplearray;
unsigned long samplesum = 0;
unsigned int sampleavg = 0;
int samplecount = 0;
//unsigned int sample = 0;
unsigned long oldtime = 0;
unsigned long newtime = 0;
int color;
int center = 0;
int step = -1;
int maxSteps = 16;
float fadeRate = 0.80;
int diff;
int
origin = 0,
color_wait_count = 0,
scroll_color = COLOR_MIN,
last_intensity = 0,
intensity_max = 0,
origin_at_flip = 0;
uint32_t
draw;
boolean
growing = false,
fall_from_left = true;
uint32_t currentBg = random(256);
uint32_t nextBg = currentBg;
TBlendType currentBlending;
const int buttonPin = 0;
int buttonPushCounter = 0;
int buttonState = 0;
int lastButtonState = 0;
byte peak = 16;
byte dotCount = 0;
byte dotHangCount = 0;
void setup() {
analogReference(EXTERNAL);
pinMode(buttonPin, INPUT);
digitalWrite(buttonPin, HIGH);
// Serial.begin(9600);
strip.begin();
strip.show(); // all pixels to 'off'
Serial.begin(57600);
delay(3000);
LEDS.addLeds<LED_TYPE, LED_PIN, COLOR_ORDER>(leds, N_PIXELS).setCorrection(TypicalLEDStrip);
LEDS.setBrightness(BRIGHTNESS);
dist = random16(12345);
}
float fscale( float originalMin, float originalMax, float newBegin, float newEnd, float inputValue, float curve) {
float OriginalRange = 0;
float NewRange = 0;
float zeroRefCurVal = 0;
float normalizedCurVal = 0;
float rangedValue = 0;
boolean invFlag = 0;
if (curve > 10) curve = 10;
if (curve < -10) curve = -10;
curve = (curve * -.1) ;
curve = pow(10, curve);
if (inputValue < originalMin) {
inputValue = originalMin;
}
if (inputValue > originalMax) {
inputValue = originalMax;
}
OriginalRange = originalMax - originalMin;
if (newEnd > newBegin) {
NewRange = newEnd - newBegin;
}
else
{
NewRange = newBegin - newEnd;
invFlag = 1;
}
zeroRefCurVal = inputValue - originalMin;
normalizedCurVal=zeroRefCurVal / OriginalRange;
if (originalMin > originalMax ) {
return 0;
}
if (invFlag == 0) {
rangedValue =(pow(normalizedCurVal, curve) * NewRange) + newBegin;
}
else
{
rangedValue =newBegin - (pow(normalizedCurVal, curve) * NewRange);
}
return rangedValue;
}
void loop() {
uint8_ti;
uint16_t minLvl, maxLvl;
int n, height;
buttonState = digitalRead(buttonPin);
if (buttonState != lastButtonState) {
if (buttonState == HIGH) {
buttonPushCounter++;
Serial.println("on");
Serial.print("number of button pushes:");
Serial.println(buttonPushCounter);
if (buttonPushCounter == 16) {
buttonPushCounter = 1;
}
}
else {
Serial.println("off");
}
}
lastButtonState = buttonState;
switch (buttonPushCounter) {
case 1:
buttonPushCounter == 1; {
All2();
break;
}
case 2:
buttonPushCounter == 2; {
vu();
break;
}
case 3:
buttonPushCounter == 3; {
vu1();
break;
}
case 4:
buttonPushCounter == 4; {
vu2();
break;
}
case 5:
buttonPushCounter == 5; {
Vu3();
break;
}
case 6:
buttonPushCounter == 6; {
Vu4();
break;
}
case 7:
buttonPushCounter == 7; {
Vu5();
break;
}
case 8:
buttonPushCounter == 8; {
Vu6();
break;
}
case 9:
buttonPushCounter == 9; {
vu7();
break;
}
case 10:
buttonPushCounter == 10; {
vu8();
break;
}
case 11:
buttonPushCounter == 11; {
vu9();
break;
}
case 12:
buttonPushCounter == 12; {
vu10();
break;
}
case 13:
buttonPushCounter == 13; {
vu11();
break;
}
case 14:
buttonPushCounter == 14; {
vu12();
break;
}
case 15:
buttonPushCounter == 15; {
vu13();
break;
}
case 16:
buttonPushCounter == 16; {
colorWipe(strip.Color(0, 0, 0), 10);
break;
}
}
}
void colorWipe(uint32_t c, uint8_t wait) {
for (uint16_t i = 0; i < strip.numPixels(); i++) {
strip.setPixelColor(i, c);
strip.show();
if (digitalRead(buttonPin) != lastButtonState)
return;
delay(wait);
}
}
void vu() {
uint8_ti;
uint16_t minLvl, maxLvl;
int n, height;
n = analogRead(MIC_PIN);
n = abs(n - 512 - DC_OFFSET);
n = (n <= NOISE) ? 0 : (n - NOISE);
lvl = ((lvl * 7) + n) >> 3;
height = TOP * (lvl - minLvlAvg) / (long)(maxLvlAvg - minLvlAvg);
if (height < 0L) height = 0;
else if (height > TOP) height = TOP;
if (height > peak) peak = height;
for (i = 0; i < N_PIXELS; i++) {
if (i >= height) strip.setPixelColor(i, 0, 0, 0);
else strip.setPixelColor(i, Wheel(map(i, 0, strip.numPixels() - 1, 30, 150)));
}
if (peak > 0 && peak <= N_PIXELS - 1) strip.setPixelColor(peak, Wheel(map(peak, 0, strip.numPixels() - 1, 30, 150)));
strip.show();
if (++dotCount >= PEAK_FALL) {
if (peak > 0) peak--;
dotCount = 0;
}
vol = n;
if (++volCount >= SAMPLES) volCount = 0;
minLvl = maxLvl = vol;
for (i = 1; i < SAMPLES; i++) {
if (vol < minLvl) minLvl = vol;
else if (vol > maxLvl) maxLvl = vol;
}
if ((maxLvl - minLvl) < TOP) maxLvl = minLvl + TOP;
minLvlAvg = (minLvlAvg * 63 + minLvl) >> 6;
maxLvlAvg = (maxLvlAvg * 63 + maxLvl) >> 6;
}
uint32_t Wheel(byte WheelPos) {
if (WheelPos < 85) {
return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
} else if (WheelPos < 170) {
WheelPos -= 85;
return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3);
} else {
WheelPos -= 170;
return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3);
}
}
void vu1() {
uint8_ti;
uint16_t minLvl, maxLvl;
int n, height;
n = analogRead(MIC_PIN);
n = abs(n - 512 - DC_OFFSET);
n = (n <= NOISE) ? 0 : (n - NOISE);
lvl = ((lvl * 7) + n) >> 3;
height = TOP * (lvl - minLvlAvg) / (long)(maxLvlAvg - minLvlAvg);
if (height < 0L) height = 0;
else if (height > TOP) height = TOP;
if (height > peak) peak = height;
for (i = 0; i < N_PIXELS_HALF; i++) {
if (i >= height) {
strip.setPixelColor(N_PIXELS_HALF - i - 1, 0, 0, 0);
strip.setPixelColor(N_PIXELS_HALF + i, 0, 0, 0);
}
else {
uint32_t color = Wheel(map(i, 0, N_PIXELS_HALF - 1, 30, 150));
strip.setPixelColor(N_PIXELS_HALF - i - 1, color);
strip.setPixelColor(N_PIXELS_HALF + i, color);
}
}
if (peak > 0 && peak <= N_PIXELS_HALF - 1) {
uint32_t color = Wheel(map(peak, 0, N_PIXELS_HALF - 1, 30, 150));
strip.setPixelColor(N_PIXELS_HALF - peak - 1, color);
strip.setPixelColor(N_PIXELS_HALF + peak, color);
}
strip.show();
if (++dotCount >= PEAK_FALL) { //fall rate
if (peak > 0) peak--;
dotCount = 0;
}
vol = n;
if (++volCount >= SAMPLES) volCount = 0;
minLvl = maxLvl = vol;
for (i = 1; i < SAMPLES; i++) {
if (vol < minLvl) minLvl = vol;
else if (vol > maxLvl) maxLvl = vol;
}
if ((maxLvl - minLvl) < TOP) maxLvl = minLvl + TOP;
minLvlAvg = (minLvlAvg * 63 + minLvl) >> 6;
maxLvlAvg = (maxLvlAvg * 63 + maxLvl) >> 6;
}
void vu2()
{
unsigned long startMillis = millis();
float peakToPeak = 0;
unsigned int signalMax = 0;
unsigned int signalMin = 1023;
unsigned int c, y;
while (millis() - startMillis < SAMPLE_WINDOW)
{
sample = analogRead(MIC_PIN);
if (sample < 1024)
{
if (sample > signalMax)
{
signalMax = sample;
}
else if (sample < signalMin)
{
signalMin = sample;
}
}
}
peakToPeak = signalMax - signalMin;
for (int i = 0; i <= N_PIXELS_HALF - 1; i++) {
uint32_t color = Wheel(map(i, 0, N_PIXELS_HALF - 1, 30, 150));
strip.setPixelColor(N_PIXELS - i, color);
strip.setPixelColor(0 + i, color);
}
c = fscale(INPUT_FLOOR, INPUT_CEILING, N_PIXELS_HALF, 0, peakToPeak, 2);
if (c < peak) {
peak = c;
dotHangCount = 0;
}
if (c <= strip.numPixels()) {
drawLine(N_PIXELS_HALF, N_PIXELS_HALF - c, strip.Color(0, 0, 0));
drawLine(N_PIXELS_HALF, N_PIXELS_HALF + c, strip.Color(0, 0, 0));
}
y = N_PIXELS_HALF - peak;
uint32_t color1 = Wheel(map(y, 0, N_PIXELS_HALF - 1, 30, 150));
strip.setPixelColor(y - 1, color1);
y = N_PIXELS_HALF + peak;
strip.setPixelColor(y, color1);
strip.show();
if (dotHangCount > PEAK_HANG) {
if (++dotCount >= PEAK_FALL2) {
peak++;
dotCount = 0;
}
}
else {
dotHangCount++;
}
}
void Vu3() {
uint8_t i;
uint16_t minLvl, maxLvl;
int n, height;
n = analogRead(MIC_PIN);
n = abs(n - 512 - DC_OFFSET);
n = (n <= NOISE) ? 0 : (n - NOISE);
lvl = ((lvl * 7) + n) >> 3;
height = TOP * (lvl - minLvlAvg) / (long)(maxLvlAvg - minLvlAvg);
if (height < 0L) height = 0;
else if (height > TOP) height = TOP;
if (height > peak) peak = height;
greenOffset += SPEED;
blueOffset += SPEED;
if (greenOffset >= 255) greenOffset = 0;
if (blueOffset >= 255) blueOffset = 0;
for (i = 0; i < N_PIXELS; i++) {
if (i >= height) {
strip.setPixelColor(i, 0, 0, 0);
} else {
strip.setPixelColor(i, Wheel(
map(i, 0, strip.numPixels() - 1, (int)greenOffset, (int)blueOffset)
));
}
}
if (peak > 0 && peak <= N_PIXELS - 1) strip.setPixelColor(peak, Wheel(map(peak, 0, strip.numPixels() - 1, 30, 150)));
strip.show();
if (++dotCount >= PEAK_FALL) {
if (peak > 0) peak--;
dotCount = 0;
}
strip.show();
vol = n;
if (++volCount >= SAMPLES) {
volCount = 0;
}
minLvl = maxLvl = vol;
for (i = 1; i < SAMPLES; i++) {
if (vol < minLvl) {
minLvl = vol;
} else if (vol > maxLvl) {
maxLvl = vol;
}
}
if ((maxLvl - minLvl) < TOP) {
maxLvl = minLvl + TOP;
}
minLvlAvg = (minLvlAvg * 63 + minLvl) >> 6;
maxLvlAvg = (maxLvlAvg * 63 + maxLvl) >> 6;
}
void Vu4() {
uint8_ti;
uint16_t minLvl, maxLvl;
int n, height;
n = analogRead(MIC_PIN);
n = abs(n - 512 - DC_OFFSET);
n = (n <= NOISE) ? 0 : (n - NOISE);
lvl = ((lvl * 7) + n) >> 3;
height = TOP * (lvl - minLvlAvg) / (long)(maxLvlAvg - minLvlAvg);
if (height < 0L) height = 0;
else if (height > TOP) height = TOP;
if (height > peak) peak = height;
greenOffset += SPEED;
blueOffset += SPEED;
if (greenOffset >= 255) greenOffset = 0;
if (blueOffset >= 255) blueOffset = 0;
for (i = 0; i < N_PIXELS_HALF; i++) {
if (i >= height) {
strip.setPixelColor(N_PIXELS_HALF - i - 1, 0, 0, 0);
strip.setPixelColor(N_PIXELS_HALF + i, 0, 0, 0);
}
else {
uint32_t color = Wheel(map(i, 0, N_PIXELS_HALF - 1, (int)greenOffset, (int)blueOffset));
strip.setPixelColor(N_PIXELS_HALF - i - 1, color);
strip.setPixelColor(N_PIXELS_HALF + i, color);
}
}
// Draw peak dot
if (peak > 0 && peak <= N_PIXELS_HALF - 1) {
uint32_t color = Wheel(map(peak, 0, N_PIXELS_HALF - 1, 30, 150));
strip.setPixelColor(N_PIXELS_HALF - peak - 1, color);
strip.setPixelColor(N_PIXELS_HALF + peak, color);
}
strip.show(); // Update strip
// Every few frames, make the peak pixel drop by 1:
if (++dotCount >= PEAK_FALL) { //fall rate
if (peak > 0) peak--;
dotCount = 0;
}
vol = n;
if (++volCount >= SAMPLES) volCount = 0;
minLvl = maxLvl = vol;
for (i = 1; i < SAMPLES; i++) {
if (vol < minLvl) minLvl = vol;
else if (vol > maxLvl) maxLvl = vol;
}
if ((maxLvl - minLvl) < TOP) maxLvl = minLvl + TOP;
minLvlAvg = (minLvlAvg * 63 + minLvl) >> 6;
maxLvlAvg = (maxLvlAvg * 63 + maxLvl) >> 6;
}
void Vu5()
{
uint8_ti;
uint16_t minLvl, maxLvl;
int n, height;
n = analogRead(MIC_PIN);
n = abs(n - 512 - DC_OFFSET);
n = (n <= NOISE) ? 0 : (n - NOISE);
lvl = ((lvl * 7) + n) >> 3;
height = TOP2 * (lvl - minLvlAvg) / (long)(maxLvlAvg - minLvlAvg);
if (height < 0L) height = 0;
else if (height > TOP2) height = TOP2;
if (height > peak) peak = height;
#ifdef CENTERED
for (i = 0; i < (N_PIXELS / 2); i++) {
if (((N_PIXELS / 2) + i) >= height)
{
strip.setPixelColor(((N_PIXELS / 2) + i), 0, 0, 0);
strip.setPixelColor(((N_PIXELS / 2) - i), 0, 0, 0);
}
else
{
strip.setPixelColor(((N_PIXELS / 2) + i), Wheel(map(((N_PIXELS / 2) + i), 0, strip.numPixels() - 1, 30, 150)));
strip.setPixelColor(((N_PIXELS / 2) - i), Wheel(map(((N_PIXELS / 2) - i), 0, strip.numPixels() - 1, 30, 150)));
}
}
if (peak > 0 && peak <= LAST_PIXEL_OFFSET)
{
strip.setPixelColor(((N_PIXELS / 2) + peak), 255, 255, 255);
strip.setPixelColor(((N_PIXELS / 2) - peak), 255, 255, 255);
}
#else
for (i = 0; i < N_PIXELS; i++)
{
if (i >= height)
{
strip.setPixelColor(i, 0, 0, 0);
}
else
{
strip.setPixelColor(i, Wheel(map(i, 0, strip.numPixels() - 1, 30, 150)));
}
}
if (peak > 0 && peak <= LAST_PIXEL_OFFSET)
{
strip.setPixelColor(peak, 255, 255, 255);
}
#endif
if (millis() - lastTime >= PEAK_FALL_MILLIS)
{
lastTime = millis();
strip.show();
if (peak > 0) peak--;
}
vol = n;
if (++volCount >= SAMPLES) volCount = 0;
minLvl = maxLvl = vol;
for (i = 1; i < SAMPLES; i++)
{
if (vol < minLvl) minLvl = vol;
else if (vol > maxLvl) maxLvl = vol;
}
if ((maxLvl - minLvl) < TOP2) maxLvl = minLvl + TOP2;
minLvlAvg = (minLvlAvg * 63 + minLvl) >> 6;
maxLvlAvg = (maxLvlAvg * 63 + maxLvl) >> 6;
}
void Vu6()
{
uint8_ti;
uint16_t minLvl, maxLvl;
int n, height;
n = analogRead(MIC_PIN);
n = abs(n - 512 - DC_OFFSET);
n = (n <= NOISE) ? 0 : (n - NOISE);
lvl = ((lvl * 7) + n) >> 3;
height = TOP2 * (lvl - minLvlAvg) / (long)(maxLvlAvg - minLvlAvg);
if (height < 0L) height = 0;
else if (height > TOP2) height = TOP2;
if (height > peak) peak = height;
#ifdef CENTERED
if (peak > 0 && peak <= LAST_PIXEL_OFFSET)
{
strip.setPixelColor(((N_PIXELS / 2) + peak), 255, 255, 255);
strip.setPixelColor(((N_PIXELS / 2) - peak), 255, 255, 255);
}
#else
// Color pixels based on rainbow gradient
for (i = 0; i < N_PIXELS; i++)
{
if (i >= height)
{
strip.setPixelColor(i, 0, 0, 0);
}
else
{
}
}
// Draw peak dot
if (peak > 0 && peak <= LAST_PIXEL_OFFSET)
{
strip.setPixelColor(peak, 0, 0, 255);
}
#endif
// Every few frames, make the peak pixel drop by 1:
if (millis() - lastTime >= PEAK_FALL_MILLIS)
{
lastTime = millis();
strip.show(); // Update strip
//fall rate
if (peak > 0) peak--;
}
vol = n;
if (++volCount >= SAMPLES) volCount = 0;
minLvl = maxLvl = vol;
for (i = 1; i < SAMPLES; i++)
{
if (vol < minLvl) minLvl = vol;
else if (vol > maxLvl) maxLvl = vol;
}
if ((maxLvl - minLvl) < TOP2) maxLvl = minLvl + TOP2;
minLvlAvg = (minLvlAvg * 63 + minLvl) >> 6;
maxLvlAvg = (maxLvlAvg * 63 + maxLvl) >> 6;
}
void vu7() {
EVERY_N_MILLISECONDS(1000) {
peakspersec = peakcount;
peakcount = 0;
}
soundmems();
EVERY_N_MILLISECONDS(20) {
ripple3();
}
show_at_max_brightness_for_power();
}
void soundmems() {
newtime = millis();
int tmp = analogRead(MIC_PIN) - 512;
sample = abs(tmp);
int potin = map(analogRead(POT_PIN), 0, 1023, 0, 60);
samplesum = samplesum + sample - samplearray;
sampleavg = samplesum / NSAMPLES;
samplearray = sample;
samplecount = (samplecount + 1) % NSAMPLES;
if (newtime > (oldtime + 200)) digitalWrite(13, LOW);
if ((sample > (sampleavg + potin)) && (newtime > (oldtime + 60)) ) {
step = -1;
peakcount++;
digitalWrite(13, HIGH);
oldtime = newtime;
}
}
void ripple3() {
for (int i = 0; i < N_PIXELS; i++) leds = CHSV(bgcol, 255, sampleavg * 2);
switch (step) {
case -1:
center = random(N_PIXELS);
colour = (peakspersec * 10) % 255;
step = 0;
bgcol = bgcol + 8;
break;
case 0:
leds = CHSV(colour, 255, 255);
step ++;
break;
case maxsteps:
break;
default:
leds[(center + step + N_PIXELS) % N_PIXELS] += CHSV(colour, 255, myfade / step * 2);
leds[(center - step + N_PIXELS) % N_PIXELS] += CHSV(colour, 255, myfade / step * 2);
step ++;
break;
}
}
void vu8() {
int intensity = calculateIntensity();
updateOrigin(intensity);
assignDrawValues(intensity);
writeSegmented();
updateGlobals();
}
int calculateIntensity() {
int intensity;
reading = analogRead(MIC_PIN);
reading = abs(reading - 512 - DC_OFFSET);
reading = (reading <= NOISE) ? 0 : (reading - NOISE);
lvl = ((lvl * 7) + reading) >> 3;
intensity = DRAW_MAX * (lvl - minLvlAvg) / (long)(maxLvlAvg - minLvlAvg);
return constrain(intensity, 0, DRAW_MAX - 1);
}
void updateOrigin(int intensity) {
if (growing && intensity < last_intensity) {
growing = false;
intensity_max = last_intensity;
fall_from_left = !fall_from_left;
origin_at_flip = origin;
} else if (intensity > last_intensity) {
growing = true;
origin_at_flip = origin;
}
last_intensity = intensity;
if (!growing) {
if (fall_from_left) {
origin = origin_at_flip + ((intensity_max - intensity) / 2);
} else {
origin = origin_at_flip - ((intensity_max - intensity) / 2);
}
if (origin < 0) {
origin = DRAW_MAX - abs(origin);
} else if (origin > DRAW_MAX - 1) {
origin = origin - DRAW_MAX - 1;
}
}
}
void assignDrawValues(int intensity) {
int min_lit = origin - (intensity / 2);
int max_lit = origin + (intensity / 2);
if (min_lit < 0) {
min_lit = min_lit + DRAW_MAX;
}
if (max_lit >= DRAW_MAX) {
max_lit = max_lit - DRAW_MAX;
}
for (int i = 0; i < DRAW_MAX; i++) {
if (
(min_lit < max_lit && min_lit < i && i < max_lit)
|| (min_lit > max_lit && (i > min_lit || i < max_lit))
) {
draw = Wheel(scroll_color);
} else {
draw = 0;
}
}
}
void writeSegmented() {
int seg_len = N_PIXELS / SEGMENTS;
for (int s = 0; s < SEGMENTS; s++) {
for (int i = 0; i < seg_len; i++) {
strip.setPixelColor(i + (s * seg_len), draw);
}
}
strip.show();
}
uint32_t * segmentAndResize(uint32_t* draw) {
int seg_len = N_PIXELS / SEGMENTS;
uint32_t segmented;
for (int s = 0; s < SEGMENTS; s++) {
for (int i = 0; i < seg_len; i++) {
segmented = draw;
}
}
return segmented;
}
void writeToStrip(uint32_t* draw) {
for (int i = 0; i < N_PIXELS; i++) {
strip.setPixelColor(i, draw);
}
strip.show();
}
void updateGlobals() {
uint16_t minLvl, maxLvl;
color_wait_count++;
if (color_wait_count > COLOR_WAIT_CYCLES) {
color_wait_count = 0;
scroll_color++;
if (scroll_color > COLOR_MAX) {
scroll_color = COLOR_MIN;
}
}
vol = reading;
if (++volCount >= SAMPLES) volCount = 0;
minLvl = maxLvl = vol;
for (uint8_t i = 1; i < SAMPLES; i++) {
if (vol < minLvl) minLvl = vol;
else if (vol > maxLvl) maxLvl = vol;
}
if ((maxLvl - minLvl) < N_PIXELS) maxLvl = minLvl + N_PIXELS;
minLvlAvg = (minLvlAvg * 63 + minLvl) >> 6;
maxLvlAvg = (maxLvlAvg * 63 + maxLvl) >> 6;
}
void vu9() {
currentPalette = OceanColors_p;
currentBlending = LINEARBLEND;
EVERY_N_SECONDS(5) {
for (int i = 0; i < 16; i++) {
targetPalette = CHSV(random8(), 255, 255);
}
}
EVERY_N_MILLISECONDS(100) {
uint8_t maxChanges = 24;
nblendPaletteTowardPalette(currentPalette, targetPalette, maxChanges);
}
EVERY_N_MILLIS_I(thistimer, 20) {
uint8_t timeval = beatsin8(10, 20, 50);
thistimer.setPeriod(timeval);
fadeToBlackBy(leds, N_PIXELS, 16);
sndwave();
soundble();
}
FastLED.setBrightness(max_bright);
FastLED.show();
}
void soundble() {
int tmp = analogRead(MIC_PIN) - 512 - DC_OFFSET;
sample = abs(tmp);
}
void sndwave() {
leds = ColorFromPalette(currentPalette, sample, sample * 2, currentBlending);
for (int i = N_PIXELS - 1; i > N_PIXELS / 2; i--) {
leds = leds;
}
for (int i = 0; i < N_PIXELS / 2; i++) {
leds = leds;
}
addGlitter(sampleavg);
}
void vu10() {
EVERY_N_SECONDS(5) {
static uint8_t baseC = random8();
for (int i = 0; i < 16; i++) {
targetPalette = CHSV(random8(), 255, 255);
}
}
EVERY_N_MILLISECONDS(100) {
uint8_t maxChanges = 24;
nblendPaletteTowardPalette(currentPalette, targetPalette, maxChanges);
}
EVERY_N_MILLISECONDS(thisdelay) {
soundtun();
FastLED.setBrightness(max_bright);
FastLED.show();
}
}
void soundtun() {
int n;
n = analogRead(MIC_PIN);
n = qsuba(abs(n - 512), 10);
CRGB newcolour = ColorFromPalette(currentPalette, constrain(n, 0, 255), constrain(n, 0, 255), currentBlending);
nblend(leds, newcolour, 128);
for (int i = N_PIXELS - 1; i > 0; i--) {
leds = leds;
}
}
void vu11() {
EVERY_N_MILLISECONDS(1000) {
peakspersec = peakcount;
peakcount = 0;
}
soundrip();
EVERY_N_MILLISECONDS(20) {
rippled();
}
FastLED.show();
}
void soundrip() {
newtime = millis();
int tmp = analogRead(MIC_PIN) - 512;
sample = abs(tmp);
int potin = map(analogRead(POT_PIN), 0, 1023, 0, 60);
samplesum = samplesum + sample - samplearray;
sampleavg = samplesum / NSAMPLES;
Serial.println(sampleavg);
samplearray = sample;
samplecount = (samplecount + 1) % NSAMPLES;
if (newtime > (oldtime + 200)) digitalWrite(13, LOW);
if ((sample > (sampleavg + potin)) && (newtime > (oldtime + 60)) ) {
step = -1;
peakcount++;
oldtime = newtime;
}
}
void rippled() {
fadeToBlackBy(leds, N_PIXELS, 64);
switch (step) {
case -1:
center = random(N_PIXELS);
colour = (peakspersec * 10) % 255;
step = 0;
break;
case 0:
leds = CHSV(colour, 255, 255);
step ++;
break;
case maxsteps:
break;
default:
leds[(center + step + N_PIXELS) % N_PIXELS] += CHSV(colour, 255, myfade / step * 2);
leds[(center - step + N_PIXELS) % N_PIXELS] += CHSV(colour, 255, myfade / step * 2);
step ++;
break;
}
}
void drawLine(uint8_t from, uint8_t to, uint32_t c) {
uint8_t fromTemp;
if (from > to) {
fromTemp = from;
from = to;
to = fromTemp;
}
for (int i = from; i <= to; i++) {
strip.setPixelColor(i, c);
}
}
void setPixel(int Pixel, byte red, byte green, byte blue) {
strip.setPixelColor(Pixel, strip.Color(red, green, blue));
}
void setAll(byte red, byte green, byte blue) {
for (int i = 0; i < N_PIXELS; i++ ) {
setPixel(i, red, green, blue);
}
strip.show();
}
void vu12() {
EVERY_N_MILLISECONDS(1000) {
peakspersec = peakcount;
peakcount = 0;
}
soundripped();
EVERY_N_MILLISECONDS(20) {
rippvu();
}
FastLED.show();
}
void soundripped() {
newtime = millis();
int tmp = analogRead(MIC_PIN) - 512;
sample = abs(tmp);
int potin = map(analogRead(POT_PIN), 0, 1023, 0, 60);
samplesum = samplesum + sample - samplearray;
sampleavg = samplesum / NSAMPLES;
Serial.println(sampleavg);
samplearray = sample;
samplecount = (samplecount + 1) % NSAMPLES;
if (newtime > (oldtime + 200)) digitalWrite(13, LOW);
if ((sample > (sampleavg + potin)) && (newtime > (oldtime + 60)) ) {
step = -1;
peakcount++;
oldtime = newtime;
}
}
void rippvu() {
fadeToBlackBy(leds, N_PIXELS, 64);
switch (step) {
case -1:
center = random(N_PIXELS);
colour = (peakspersec * 10) % 255;
step = 0;
break;
case 0:
leds = CHSV(colour, 255, 255);
step ++;
break;
case maxsteps:
break;
default:
leds[(center + step + N_PIXELS) % N_PIXELS] += CHSV(colour, 255, myfade / step * 2);
leds[(center - step + N_PIXELS) % N_PIXELS] += CHSV(colour, 255, myfade / step * 2);
step ++;
break;
}
addGlitter(sampleavg);
}
void vu13() {
EVERY_N_MILLISECONDS(1000) {
peakspersec = peakcount;
peakcount = 0;
}
soundripper();
EVERY_N_MILLISECONDS(20) {
jugglep();
}
FastLED.show();
}
void soundripper() {
newtime = millis();
int tmp = analogRead(MIC_PIN) - 512;
sample = abs(tmp);
int potin = map(analogRead(POT_PIN), 0, 1023, 0, 60);
samplesum = samplesum + sample - samplearray;
sampleavg = samplesum / NSAMPLES;
Serial.println(sampleavg);
samplearray = sample;
samplecount = (samplecount + 1) % NSAMPLES;
if (newtime > (oldtime + 200)) digitalWrite(13, LOW);
if ((sample > (sampleavg + potin)) && (newtime > (oldtime + 60)) ) {
step = -1;
peakcount++;
oldtime = newtime;
jugglep();
}
}
void jugglep() {
static uint8_t thishue = 0;
timeval = 40;
leds = ColorFromPalette(currentPalette, thishue++, sampleavg, LINEARBLEND);
for (int i = N_PIXELS - 1; i > 0 ; i-- ) leds = leds;
addGlitter(sampleavg / 2);
}
uint32_t Wheel(byte WheelPos, float opacity) {
if (WheelPos < 85) {
return strip.Color((WheelPos * 3) * opacity, (255 - WheelPos * 3) * opacity, 0);
}
else if (WheelPos < 170) {
WheelPos -= 85;
return strip.Color((255 - WheelPos * 3) * opacity, 0, (WheelPos * 3) * opacity);
}
else {
WheelPos -= 170;
return strip.Color(0, (WheelPos * 3) * opacity, (255 - WheelPos * 3) * opacity);
}
}
void addGlitter( fract8 chanceOfGlitter) {
if ( random8() < chanceOfGlitter) {
leds += CRGB::White;
}
}
typedef void (*SimplePatternList[])();
SimplePatternList qPatterns = {vu, vu1, vu2, Vu3, Vu4, Vu5, Vu6, vu7, vu8, vu9, vu10, vu11, vu12, vu13};
uint8_t qCurrentPatternNumber = 0;
void nextPattern2()
{
qCurrentPatternNumber = (qCurrentPatternNumber + 1) % ARRAY_SIZE( qPatterns);
}
void All2()
{
qPatterns();
EVERY_N_SECONDS( 30 ) {
nextPattern2();
}
}
【花雕动手做】看见声音，基于Arduino系列音乐可视器（1）---LED节奏灯
https://mc.dfrobot.com.cn/thread-311167-1-1.html
【花雕动手做】看见声音，基于Arduino系列音乐可视器（2）---OLED频谱灯
https://mc.dfrobot.com.cn/thread-311174-1-1.html
【花雕动手做】看见声音，基于Arduino系列音乐可视器（3）---RGB律动灯
https://mc.dfrobot.com.cn/thread-311183-1-1.html
【花雕动手做】看见声音，基于Arduino系列音乐可视器（4）---WS2812条灯
https://mc.dfrobot.com.cn/thread-311190-1-1.html
【花雕动手做】看见声音，基于Arduino系列音乐可视器（5）---WS2812柱跳灯
https://mc.dfrobot.com.cn/thread-311192-1-1.html
【花雕动手做】看见声音，基于Arduino系列音乐可视器（6）---点阵频谱灯
https://mc.dfrobot.com.cn/thread-311201-1-1.html
【花雕动手做】看见声音，基于Arduino系列音乐可视器（7）---大方格频谱灯
https://mc.dfrobot.com.cn/thread-311364-1-1.html
【花雕动手做】看见声音，基于Arduino系列音乐可视器（8）---四位32段点阵屏
https://mc.dfrobot.com.cn/thread-311490-1-1.html
【花雕动手做】看见声音，基于Arduino系列音乐可视器（9）---X Music Spectrum
https://mc.dfrobot.com.cn/thread-311627-1-1.html
【花雕动手做】看见声音，基于Arduino系列音乐可视器（10）---WS2812硬板屏
https://mc.dfrobot.com.cn/thread-311641-1-1.html
【花雕动手做】看见声音，基于Arduino系列音乐可视器（11）---WS2812幻彩灯带
https://mc.dfrobot.com.cn/thread-313648-1-1.html
【花雕动手做】看见声音，基于Arduino系列音乐可视器（12）---米管快速节奏灯
https://mc.dfrobot.com.cn/thread-313708-1-1.html
【花雕动手做】看见声音，基于Arduino系列音乐可视器（13）---有机棒立柱灯
https://mc.dfrobot.com.cn/thread-313723-1-1.html
【花雕动手做】看见声音，基于Arduino系列音乐可视器（14）---水杯水瓶灯
https://mc.dfrobot.com.cn/thread-313803-1-1.html
【花雕动手做】看见声音，基于Arduino系列音乐可视器（15）--横排LED方管灯
https://mc.dfrobot.com.cn/thread-313811-1-1.html
【花雕动手做】看见声音，基于Arduino系列音乐可视器（16）--热干胶棒棒灯
https://mc.dfrobot.com.cn/thread-313844-1-1.html
【花雕动手做】有趣好玩音乐可视化系列（17）--光导纤维灯
https://mc.dfrobot.com.cn/thread-313867-1-1.html
【花雕动手做】看见声音，基于Arduino系列音乐可视器（18）--LED平面板灯
https://mc.dfrobot.com.cn/thread-313951-1-1.html
【花雕动手做】看见声音，基于Arduino系列音乐可视器（19）--通体光纤灯
https://mc.dfrobot.com.cn/thread-313962-1-1.html
【花雕动手做】看见声音，基于Arduino系列音乐可视器（20）--首饰盒镜子灯
https://mc.dfrobot.com.cn/thread-313969-1-1.html
【花雕动手做】看见声音，基于Arduino系列音乐可视器（21）--CD 光盘灯
https://mc.dfrobot.com.cn/thread-313984-1-1.html
【花雕动手做】看见声音，基于Arduino系列音乐可视器（22）--LED无限魔方
https://mc.dfrobot.com.cn/thread-313994-1-1.html
【花雕动手做】有趣好玩的音乐可视化（23）--3合1闪点光纤
https://mc.dfrobot.com.cn/thread-314168-1-1.html
【花雕动手做】有趣好玩的音乐可视化（24）--无限LED镜子灯
https://mc.dfrobot.com.cn/thread-314180-1-1.html
【花雕动手做】有趣好玩音乐可视化（25）--水龙卷旋涡灯
https://mc.dfrobot.com.cn/thread-314231-1-1.html
【花雕动手做】有趣好玩音乐可视化系列（26）--LED 超立方体
https://mc.dfrobot.com.cn/thread-314244-1-1.html
【花雕动手做】有趣好玩的音乐可视化（27）--磁搅LED水旋灯
https://mc.dfrobot.com.cn/thread-314273-1-1.html
彩灯使用WS2812B
其主要特点
智能反接保护，电源反接不会损坏IC。
IC控制电路与LED点光源公用一个电源。
控制电路与RGB芯片集成在一个5050封装的元器件中，构成一个完整的外控像素点。
内置信号整形电路，任何一个像素点收到信号后经过波形整形再输出，保证线路波形畸变不会累加。
内置上电复位和掉电复位电路。
每个像素点的三基色颜色可实现256级亮度显示，完成16777216种颜色的全真色彩显示，扫描频率不低于400Hz/s。
串行级联接口，能通过一根信号线完成数据的接收与解码。
任意两点传传输距离在不超过5米时无需增加任何电路。
当刷新速率30帧/秒时，级联数不小于1024点。
数据发送速度可达800Kbps。
光的颜色高度一致，性价比高。
主要应用领域
LED全彩发光字灯串,LED全彩模组， LED全彩软灯条硬灯条,LED护栏管。
LED点光源,LED像素屏,LED异形屏，各种电子产品，电器设备跑马灯。
在路边五金店里，买了一米装修用的墙上线槽盒子
带气泡的有机棒
线槽盒子有可拆卸的盖子
备好项目材料
有机棒直径约20mm
测量划线
先钻小孔
再扩大孔
打孔完工
声音模块依旧使用MAX9814（几元钱便宜好用）
MAX9814是一款低成本高性能麦克风放大器，具有自动增益控制(AGC)和低噪声麦克风偏置。器件具有低噪声前端放大器、可变增益放大(VGA)、输出放大器、麦克风偏置电压发生器和AGC控制电路。
●自动增益控制(AGC)
●3种增益设置(40dB、50dB、60dB)
●可编程动作时间
●可编程动作和释放时间比
●电源电压范围2.7V～5.5V
●低THD：0.04% (典型值)
●低功耗关断模式
●内置2V低噪声麦克风偏置
WS2812模块电原理图
WS2812B灯带选用的是每米60灯黑底裸板
WS2812B是集控制电路和发光电路于一体的LED光源元件，其控制IC为WS2812B，发光元件是5050RGBLED，电压为5V，每个单位的峰值电流为60ma，灯带为三线制，VCC GND DIN分别为电源+、电源-、信号，当使用外部电源时，外部电源-需要与单片机的GND相连。
灯带固定在线槽盖子上
开始安装有机棒
Arduno UNO项目接线示意图