¶ NeoPixel
Prévoir 0,1W/led en moyenne, soit 10W pour 100 leds.
Sous 5V cela fait un courant de 2 A. (Toutes les leds allumées ... 'Maximum power ! Mr Sulu')
¶ APA102
¶ WS2812
Vérifier que toutes les annimations ont bien une fin. Sinon le mécanisme de boucle aléatoire ne fonctionne pas.
#include <FastLED.h>
#define NUM_LEDS 45
#define DATA_PIN 4
#define CLOCK_PIN 5
CRGB leds[NUM_LEDS];
int motif = random(1, 19);
byte colors[5][3] = { {0xff, 0,0}, // red
{0, 0xff, 0}, // green
{0, 0, 0xff}, // blue
{0xff, 0xff, 0xff},// white
{0xff, 0xff, 0} }; // yellow
#include "Tools.h"
#include "meteorRain.h"
#include "BouncingColoredBalls.h"
#include "BouncingBalls.h"
#include "Fire.h"
#include "theaterChaseRainbow.h"
#include "theaterChase.h"
#include "rainbowCycle.h"
#include "colorWipe.h"
#include "RunningLights.h"
#include "SnowSparkle.h"
#include "Sparkle.h"
#include "TwinkleRandom.h"
#include "Twinkle.h"
#include "NewKITT.h"
#include "CylonBounce.h"
#include "HalloweenEyes.h"
#include "Strobe.h"
#include "FadeInOut.h"
#include "RGBLoop.h"
void setup() {
Serial.begin(9600);
randomSeed(analogRead(0)); // Initialisation fonction Random
motif = random(1, 19);
FastLED.addLeds<APA102, DATA_PIN, CLOCK_PIN>(leds, NUM_LEDS);
// FastLED.addLeds<WS2812, DATA_PIN>(leds, NUM_LEDS);
Serial.print("Programme ");
Serial.print(motif);
Serial.println(" en cours.");
}
void loop() {
changeMotif();
switch(motif) {
case 1:
meteorRain(0xff,0xff,0xff,10, 64, true, 30);
break;
case 2:
BouncingColoredBalls(5, colors);
break;
case 3:
BouncingBalls(0xff,0,0, 3);
break;
case 4:
Fire(55,120,15);
break;
case 5:
theaterChaseRainbow(50);
break;
case 6:
theaterChase(0xff,0,0,50);
break;
case 7:
rainbowCycle(20);
break;
case 8:
colorWipe(0x00,0xff,0x00, 50);
colorWipe(0x00,0x00,0x00, 50);
break;
case 9:
RunningLights(0xff,0xff,0x00, 50);
break;
case 10:
SnowSparkle(0x10, 0x10, 0x10, 20, random(100,1000));
break;
case 11:
Sparkle(0xff, 0xff, 0xff, 0);
break;
case 12:
TwinkleRandom(20, 100, false);
break;
case 13:
Twinkle(0xff, 0, 0, 10, 100, false);
break;
case 14:
NewKITT(0xff, 0, 0, 8, 10, 50);
break;
case 15:
CylonBounce(0xff, 0, 0, 4, 10, 50);
break;
case 16:
HalloweenEyes(0xff, 0x00, 0x00, 1, 4, true, random(5,50), random(50,150), random(1000, 10000));
break;
case 17:
Strobe(0xff, 0xff, 0xff, 10, 50, 1000);
break;
case 18:
FadeInOut(0xff, 0x77, 0x00);
break;
case 19:
RGBLoop();
break;
}
}
void changeMotif() {
motif++;
if( motif>18 ) motif = 1;
}
void showStrip() {
#ifdef ADAFRUIT_NEOPIXEL_H
// NeoPixel
strip.show();
#endif
#ifndef ADAFRUIT_NEOPIXEL_H
// FastLED
FastLED.show();
#endif
}
void setPixel(int Pixel, byte red, byte green, byte blue) {
#ifdef ADAFRUIT_NEOPIXEL_H
// NeoPixel
strip.setPixelColor(Pixel, strip.Color(red, green, blue));
#endif
#ifndef ADAFRUIT_NEOPIXEL_H
// FastLED
leds[Pixel].r = red;
leds[Pixel].g = green;
leds[Pixel].b = blue;
#endif
}
void setAll(byte red, byte green, byte blue) {
for(int i = 0; i < NUM_LEDS; i++ ) {
setPixel(i, red, green, blue);
}
showStrip();
}
void meteorRain(byte red, byte green, byte blue, byte meteorSize, byte meteorTrailDecay, boolean meteorRandomDecay, int SpeedDelay) {
setAll(0,0,0);
for(int i = 0; i < NUM_LEDS+NUM_LEDS; i++) {
// fade brightness all LEDs one step
for(int j=0; j<NUM_LEDS; j++) {
if( (!meteorRandomDecay) || (random(10)>5) ) {
fadeToBlack(j, meteorTrailDecay );
}
}
// draw meteor
for(int j = 0; j < meteorSize; j++) {
if( ( i-j <NUM_LEDS) && (i-j>=0) ) {
setPixel(i-j, red, green, blue);
}
}
showStrip();
delay(SpeedDelay);
}
}
void fadeToBlack(int ledNo, byte fadeValue) {
leds[ledNo].fadeToBlackBy( fadeValue );
}
void BouncingColoredBalls(int BallCount, byte colors[][3]) {
float Gravity = -9.81;
int StartHeight = 1;
float Height[BallCount];
float ImpactVelocityStart = sqrt( -2 * Gravity * StartHeight );
float ImpactVelocity[BallCount];
float TimeSinceLastBounce[BallCount];
int Position[BallCount];
long ClockTimeSinceLastBounce[BallCount];
float Dampening[BallCount];
for (int i = 0 ; i < BallCount ; i++) {
ClockTimeSinceLastBounce[i] = millis();
Height[i] = StartHeight;
Position[i] = 0;
ImpactVelocity[i] = ImpactVelocityStart;
TimeSinceLastBounce[i] = 0;
Dampening[i] = 0.90 - float(i)/pow(BallCount,2);
}
while (true) {
for (int i = 0 ; i < BallCount ; i++) {
TimeSinceLastBounce[i] = millis() - ClockTimeSinceLastBounce[i];
Height[i] = 0.5 * Gravity * pow( TimeSinceLastBounce[i]/1000 , 2.0 ) + ImpactVelocity[i] * TimeSinceLastBounce[i]/1000;
if ( Height[i] < 0 ) {
Height[i] = 0;
ImpactVelocity[i] = Dampening[i] * ImpactVelocity[i];
ClockTimeSinceLastBounce[i] = millis();
if ( ImpactVelocity[i] < 0.01 ) {
ImpactVelocity[i] = ImpactVelocityStart;
}
}
Position[i] = round( Height[i] * (NUM_LEDS - 1) / StartHeight);
}
for (int i = 0 ; i < BallCount ; i++) {
setPixel(Position[i],colors[i][0],colors[i][1],colors[i][2]);
}
showStrip();
setAll(0,0,0);
}
}
void BouncingBalls(byte red, byte green, byte blue, int BallCount) {
float Gravity = -9.81;
int StartHeight = 1;
float Height[BallCount];
float ImpactVelocityStart = sqrt( -2 * Gravity * StartHeight );
float ImpactVelocity[BallCount];
float TimeSinceLastBounce[BallCount];
int Position[BallCount];
long ClockTimeSinceLastBounce[BallCount];
float Dampening[BallCount];
for (int i = 0 ; i < BallCount ; i++) {
ClockTimeSinceLastBounce[i] = millis();
Height[i] = StartHeight;
Position[i] = 0;
ImpactVelocity[i] = ImpactVelocityStart;
TimeSinceLastBounce[i] = 0;
Dampening[i] = 0.90 - float(i)/pow(BallCount,2);
}
while (true) {
for (int i = 0 ; i < BallCount ; i++) {
TimeSinceLastBounce[i] = millis() - ClockTimeSinceLastBounce[i];
Height[i] = 0.5 * Gravity * pow( TimeSinceLastBounce[i]/1000 , 2.0 ) + ImpactVelocity[i] * TimeSinceLastBounce[i]/1000;
if ( Height[i] < 0 ) {
Height[i] = 0;
ImpactVelocity[i] = Dampening[i] * ImpactVelocity[i];
ClockTimeSinceLastBounce[i] = millis();
if ( ImpactVelocity[i] < 0.01 ) {
ImpactVelocity[i] = ImpactVelocityStart;
}
}
Position[i] = round( Height[i] * (NUM_LEDS - 1) / StartHeight);
}
for (int i = 0 ; i < BallCount ; i++) {
setPixel(Position[i],red,green,blue);
}
showStrip();
setAll(0,0,0);
}
}
void Fire(int Cooling, int Sparking, int SpeedDelay) {
static byte heat[NUM_LEDS];
int cooldown;
// Step 1. Cool down every cell a little
for( int i = 0; i < NUM_LEDS; i++) {
cooldown = random(0, ((Cooling * 10) / NUM_LEDS) + 2);
if(cooldown>heat[i]) {
heat[i]=0;
} else {
heat[i]=heat[i]-cooldown;
}
}
// Step 2. Heat from each cell drifts 'up' and diffuses a little
for( int k= NUM_LEDS - 1; k >= 2; k--) {
heat[k] = (heat[k - 1] + heat[k - 2] + heat[k - 2]) / 3;
}
// Step 3. Randomly ignite new 'sparks' near the bottom
if( random(255) < Sparking ) {
int y = random(7);
heat[y] = heat[y] + random(160,255);
//heat[y] = random(160,255);
}
// Step 4. Convert heat to LED colors
for( int j = 0; j < NUM_LEDS; j++) {
setPixelHeatColor(j, heat[j] );
}
showStrip();
delay(SpeedDelay);
}
void setPixelHeatColor (int Pixel, byte temperature) {
// Scale 'heat' down from 0-255 to 0-191
byte t192 = round((temperature/255.0)*191);
// calculate ramp up from
byte heatramp = t192 & 0x3F; // 0..63
heatramp <<= 2; // scale up to 0..252
// figure out which third of the spectrum we're in:
if( t192 > 0x80) { // hottest
setPixel(Pixel, 255, 255, heatramp);
} else if( t192 > 0x40 ) { // middle
setPixel(Pixel, 255, heatramp, 0);
} else { // coolest
setPixel(Pixel, heatramp, 0, 0);
}
}
void theaterChaseRainbow(int SpeedDelay) {
byte *c;
for (int j=0; j < 256; j++) { // cycle all 256 colors in the wheel
for (int q=0; q < 3; q++) {
for (int i=0; i < NUM_LEDS; i=i+3) {
c = Wheel( (i+j) % 255);
setPixel(i+q, *c, *(c+1), *(c+2)); //turn every third pixel on
}
showStrip();
delay(SpeedDelay);
for (int i=0; i < NUM_LEDS; i=i+3) {
setPixel(i+q, 0,0,0); //turn every third pixel off
}
}
}
}
byte * Wheel(byte WheelPos) {
static byte c[3];
if(WheelPos < 85) {
c[0]=WheelPos * 3;
c[1]=255 - WheelPos * 3;
c[2]=0;
} else if(WheelPos < 170) {
WheelPos -= 85;
c[0]=255 - WheelPos * 3;
c[1]=0;
c[2]=WheelPos * 3;
} else {
WheelPos -= 170;
c[0]=0;
c[1]=WheelPos * 3;
c[2]=255 - WheelPos * 3;
}
return c;
}
void theaterChase(byte red, byte green, byte blue, int SpeedDelay) {
for (int j=0; j<10; j++) { //do 10 cycles of chasing
for (int q=0; q < 3; q++) {
for (int i=0; i < NUM_LEDS; i=i+3) {
setPixel(i+q, red, green, blue); //turn every third pixel on
}
showStrip();
delay(SpeedDelay);
for (int i=0; i < NUM_LEDS; i=i+3) {
setPixel(i+q, 0,0,0); //turn every third pixel off
}
}
}
}
void rainbowCycle(int SpeedDelay) {
byte *c;
uint16_t i, j;
for(j=0; j<256*5; j++) { // 5 cycles of all colors on wheel
for(i=0; i< NUM_LEDS; i++) {
c=Wheel(((i * 256 / NUM_LEDS) + j) & 255);
setPixel(i, *c, *(c+1), *(c+2));
}
showStrip();
delay(SpeedDelay);
}
}
void colorWipe(byte red, byte green, byte blue, int SpeedDelay) {
for(uint16_t i=0; i<NUM_LEDS; i++) {
setPixel(i, red, green, blue);
showStrip();
delay(SpeedDelay);
}
}
void RunningLights(byte red, byte green, byte blue, int WaveDelay) {
int Position=0;
for(int j=0; j<NUM_LEDS*2; j++)
{
Position++; // = 0; //Position + Rate;
for(int i=0; i<NUM_LEDS; i++) {
// sine wave, 3 offset waves make a rainbow!
//float level = sin(i+Position) * 127 + 128;
//setPixel(i,level,0,0);
//float level = sin(i+Position) * 127 + 128;
setPixel(i,((sin(i+Position) * 127 + 128)/255)*red,
((sin(i+Position) * 127 + 128)/255)*green,
((sin(i+Position) * 127 + 128)/255)*blue);
}
showStrip();
delay(WaveDelay);
}
}
void SnowSparkle(byte red, byte green, byte blue, int SparkleDelay, int SpeedDelay) {
setAll(red,green,blue);
int Pixel = random(NUM_LEDS);
setPixel(Pixel,0xff,0xff,0xff);
showStrip();
delay(SparkleDelay);
setPixel(Pixel,red,green,blue);
showStrip();
delay(SpeedDelay);
}
void Sparkle(byte red, byte green, byte blue, int SpeedDelay) {
int Pixel = random(NUM_LEDS);
setPixel(Pixel,red,green,blue);
showStrip();
delay(SpeedDelay);
setPixel(Pixel,0,0,0);
}
void TwinkleRandom(int Count, int SpeedDelay, boolean OnlyOne) {
setAll(0,0,0);
for (int i=0; i<Count; i++) {
setPixel(random(NUM_LEDS),random(0,255),random(0,255),random(0,255));
showStrip();
delay(SpeedDelay);
if(OnlyOne) {
setAll(0,0,0);
}
}
delay(SpeedDelay);
}
void Twinkle(byte red, byte green, byte blue, int Count, int SpeedDelay, boolean OnlyOne) {
setAll(0,0,0);
for (int i=0; i<Count; i++) {
setPixel(random(NUM_LEDS),red,green,blue);
showStrip();
delay(SpeedDelay);
if(OnlyOne) {
setAll(0,0,0);
}
}
delay(SpeedDelay);
}
void NewKITT(byte red, byte green, byte blue, int EyeSize, int SpeedDelay, int ReturnDelay){
RightToLeft(red, green, blue, EyeSize, SpeedDelay, ReturnDelay);
LeftToRight(red, green, blue, EyeSize, SpeedDelay, ReturnDelay);
OutsideToCenter(red, green, blue, EyeSize, SpeedDelay, ReturnDelay);
CenterToOutside(red, green, blue, EyeSize, SpeedDelay, ReturnDelay);
LeftToRight(red, green, blue, EyeSize, SpeedDelay, ReturnDelay);
RightToLeft(red, green, blue, EyeSize, SpeedDelay, ReturnDelay);
OutsideToCenter(red, green, blue, EyeSize, SpeedDelay, ReturnDelay);
CenterToOutside(red, green, blue, EyeSize, SpeedDelay, ReturnDelay);
}
void CenterToOutside(byte red, byte green, byte blue, int EyeSize, int SpeedDelay, int ReturnDelay) {
for(int i =((NUM_LEDS-EyeSize)/2); i>=0; i--) {
setAll(0,0,0);
setPixel(i, red/10, green/10, blue/10);
for(int j = 1; j <= EyeSize; j++) {
setPixel(i+j, red, green, blue);
}
setPixel(i+EyeSize+1, red/10, green/10, blue/10);
setPixel(NUM_LEDS-i, red/10, green/10, blue/10);
for(int j = 1; j <= EyeSize; j++) {
setPixel(NUM_LEDS-i-j, red, green, blue);
}
setPixel(NUM_LEDS-i-EyeSize-1, red/10, green/10, blue/10);
showStrip();
delay(SpeedDelay);
}
delay(ReturnDelay);
}
void OutsideToCenter(byte red, byte green, byte blue, int EyeSize, int SpeedDelay, int ReturnDelay) {
for(int i = 0; i<=((NUM_LEDS-EyeSize)/2); i++) {
setAll(0,0,0);
setPixel(i, red/10, green/10, blue/10);
for(int j = 1; j <= EyeSize; j++) {
setPixel(i+j, red, green, blue);
}
setPixel(i+EyeSize+1, red/10, green/10, blue/10);
setPixel(NUM_LEDS-i, red/10, green/10, blue/10);
for(int j = 1; j <= EyeSize; j++) {
setPixel(NUM_LEDS-i-j, red, green, blue);
}
setPixel(NUM_LEDS-i-EyeSize-1, red/10, green/10, blue/10);
showStrip();
delay(SpeedDelay);
}
delay(ReturnDelay);
}
void LeftToRight(byte red, byte green, byte blue, int EyeSize, int SpeedDelay, int ReturnDelay) {
for(int i = 0; i < NUM_LEDS-EyeSize-2; i++) {
setAll(0,0,0);
setPixel(i, red/10, green/10, blue/10);
for(int j = 1; j <= EyeSize; j++) {
setPixel(i+j, red, green, blue);
}
setPixel(i+EyeSize+1, red/10, green/10, blue/10);
showStrip();
delay(SpeedDelay);
}
delay(ReturnDelay);
}
void RightToLeft(byte red, byte green, byte blue, int EyeSize, int SpeedDelay, int ReturnDelay) {
for(int i = NUM_LEDS-EyeSize-2; i > 0; i--) {
setAll(0,0,0);
setPixel(i, red/10, green/10, blue/10);
for(int j = 1; j <= EyeSize; j++) {
setPixel(i+j, red, green, blue);
}
setPixel(i+EyeSize+1, red/10, green/10, blue/10);
showStrip();
delay(SpeedDelay);
}
delay(ReturnDelay);
}
void CylonBounce(byte red, byte green, byte blue, int EyeSize, int SpeedDelay, int ReturnDelay){
for(int i = 0; i < NUM_LEDS-EyeSize-2; i++) {
setAll(0,0,0);
setPixel(i, red/10, green/10, blue/10);
for(int j = 1; j <= EyeSize; j++) {
setPixel(i+j, red, green, blue);
}
setPixel(i+EyeSize+1, red/10, green/10, blue/10);
showStrip();
delay(SpeedDelay);
}
delay(ReturnDelay);
for(int i = NUM_LEDS-EyeSize-2; i > 0; i--) {
setAll(0,0,0);
setPixel(i, red/10, green/10, blue/10);
for(int j = 1; j <= EyeSize; j++) {
setPixel(i+j, red, green, blue);
}
setPixel(i+EyeSize+1, red/10, green/10, blue/10);
showStrip();
delay(SpeedDelay);
}
delay(ReturnDelay);
}
void HalloweenEyes(byte red, byte green, byte blue,
int EyeWidth, int EyeSpace,
boolean Fade, int Steps, int FadeDelay,
int EndPause){
randomSeed(analogRead(0));
int i;
int StartPoint = random( 0, NUM_LEDS - (2*EyeWidth) - EyeSpace );
int Start2ndEye = StartPoint + EyeWidth + EyeSpace;
for(i = 0; i < EyeWidth; i++) {
setPixel(StartPoint + i, red, green, blue);
setPixel(Start2ndEye + i, red, green, blue);
}
showStrip();
if(Fade==true) {
float r, g, b;
for(int j = Steps; j >= 0; j--) {
r = j*(red/Steps);
g = j*(green/Steps);
b = j*(blue/Steps);
for(i = 0; i < EyeWidth; i++) {
setPixel(StartPoint + i, r, g, b);
setPixel(Start2ndEye + i, r, g, b);
}
showStrip();
delay(FadeDelay);
}
}
setAll(0,0,0); // Set all black
delay(EndPause);
}
void Strobe(byte red, byte green, byte blue, int StrobeCount, int FlashDelay, int EndPause){
for(int j = 0; j < StrobeCount; j++) {
setAll(red,green,blue);
showStrip();
delay(FlashDelay);
setAll(0,0,0);
showStrip();
delay(FlashDelay);
}
delay(EndPause);
}
void FadeInOut(byte red, byte green, byte blue){
float r, g, b;
for(int k = 0; k < 256; k=k+1) {
r = (k/256.0)*red;
g = (k/256.0)*green;
b = (k/256.0)*blue;
setAll(r,g,b);
showStrip();
}
for(int k = 255; k >= 0; k=k-2) {
r = (k/256.0)*red;
g = (k/256.0)*green;
b = (k/256.0)*blue;
setAll(r,g,b);
showStrip();
}
}
void RGBLoop(){
for(int j = 0; j < 3; j++ ) {
// Fade IN
for(int k = 0; k < 256; k++) {
switch(j) {
case 0: setAll(k,0,0); break;
case 1: setAll(0,k,0); break;
case 2: setAll(0,0,k); break;
}
showStrip();
delay(3);
}
// Fade OUT
for(int k = 255; k >= 0; k--) {
switch(j) {
case 0: setAll(k,0,0); break;
case 1: setAll(0,k,0); break;
case 2: setAll(0,0,k); break;
}
showStrip();
delay(3);
}
}
}
¶ Sources
Library FastLed.h
tweaking4all.com
NeoPixel APA102 Datasheet