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Pride2015 - animated, ever-changing rainbows
#include "FastLED.h"
// Pride2015
// Animated, ever-changing rainbows.
// by Mark Kriegsman
#if FASTLED_VERSION < 3001000
#error "Requires FastLED 3.1 or later; check github for latest code."
#endif
#define DATA_PIN 3
//#define CLK_PIN 4
#define LED_TYPE WS2811
#define COLOR_ORDER GRB
#define NUM_LEDS 200
#define BRIGHTNESS 255
CRGB leds[NUM_LEDS];
void setup() {
delay(3000); // 3 second delay for recovery
// tell FastLED about the LED strip configuration
FastLED.addLeds<LED_TYPE,DATA_PIN,COLOR_ORDER>(leds, NUM_LEDS)
.setCorrection(TypicalLEDStrip)
.setDither(BRIGHTNESS < 255);
// set master brightness control
FastLED.setBrightness(BRIGHTNESS);
}
void loop()
{
pride();
FastLED.show();
}
// This function draws rainbows with an ever-changing,
// widely-varying set of parameters.
void pride()
{
static uint16_t sPseudotime = 0;
static uint16_t sLastMillis = 0;
static uint16_t sHue16 = 0;
uint8_t sat8 = beatsin88( 87, 220, 250);
uint8_t brightdepth = beatsin88( 341, 96, 224);
uint16_t brightnessthetainc16 = beatsin88( 203, (25 * 256), (40 * 256));
uint8_t msmultiplier = beatsin88(147, 23, 60);
uint16_t hue16 = sHue16;//gHue * 256;
uint16_t hueinc16 = beatsin88(113, 1, 3000);
uint16_t ms = millis();
uint16_t deltams = ms - sLastMillis ;
sLastMillis = ms;
sPseudotime += deltams * msmultiplier;
sHue16 += deltams * beatsin88( 400, 5,9);
uint16_t brightnesstheta16 = sPseudotime;
for( uint16_t i = 0 ; i < NUM_LEDS; i++) {
hue16 += hueinc16;
uint8_t hue8 = hue16 / 256;
brightnesstheta16 += brightnessthetainc16;
uint16_t b16 = sin16( brightnesstheta16 ) + 32768;
uint16_t bri16 = (uint32_t)((uint32_t)b16 * (uint32_t)b16) / 65536;
uint8_t bri8 = (uint32_t)(((uint32_t)bri16) * brightdepth) / 65536;
bri8 += (255 - brightdepth);
CRGB newcolor = CHSV( hue8, sat8, bri8);
uint16_t pixelnumber = i;
pixelnumber = (NUM_LEDS-1) - pixelnumber;
nblend( leds[pixelnumber], newcolor, 64);
}
}
@wizbrewery

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wizbrewery commented Dec 13, 2015

nice, thank you for sharing

@kp99

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kp99 commented Mar 23, 2016

Beautiful Animation. Thanks for sharing.

@nbietz

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nbietz commented Jun 28, 2018

I would love to see your patterns, especially PRIDE, work with Christian Schwinne's (Aircoookie) WLED project (https://github.com/Aircoookie/WLED). Do you know of a way to easily port FastLed patterns to NeoPixel, or vice/versa? Thanks!

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