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Pride2015 - animated, ever-changing rainbows
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#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); | |
} | |
} |
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From his ColorWaves code...
https://gist.github.com/kriegsman/8281905786e8b2632aeb#file-colorwaveswithpalettes-ino-L119