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