jelly.ino

#include <FastLED.h>

#define LED_PIN     10
#define NUM_LEDS    300
#define BRIGHTNESS  55
#define LED_TYPE    WS2812B
#define COLOR_ORDER GRB
CRGB leds[NUM_LEDS];


int pos = 0;
const uint8_t SweepSize = 32;
//#define UPDATES_PER_SECOND 100

CRGBPalette32 sweep = CRGBPalette32(
                        CRGB::DarkBlue,
                        CRGB::DodgerBlue,
                        CRGB::Green,
                        CRGB::Green,
                        CRGB::Green,
                        CRGB::Green,
                        CHSV( 90, 255, 255),
                        CHSV( 90, 255, 255),
                        CHSV( 90, 255, 255),
                        CRGB::Yellow,
                        CRGB::Yellow,
                        CRGB::Yellow,
                        CRGB::Yellow,
                        CRGB::Yellow,
                        CRGB::Yellow,
                        CRGB::Gold
                      );



void setup() {

  delay( 3000 ); // power-up safety delay
  FastLED.addLeds<WS2812B, LED_PIN, GRB>(leds, NUM_LEDS);
  FastLED.setBrightness(  BRIGHTNESS );
  //  FastLED.setMaxPowerInVoltsAndMilliamps(5, 2500);
}


const CRGB BackgroundColor = CRGB::Red;

void loop() {

  FastLED.show();

  int sweepPos = (millis() / 40) % NUM_LEDS;
 
  fill_solid(leds, NUM_LEDS, BackgroundColor);  // wasteful but easy

  for (int i = 0; i < SweepSize; i++) {
    pos = i + sweepPos; // if(pos > NUM_LEDS){ sweepPos = 0;}  // if(pos < 0) continue;  // not on the strip yet  // Serial.println(pos);
    pos += NUM_LEDS;
    leds[pos % NUM_LEDS] = ColorFromPalette(sweep, (255 / SweepSize) * i);     // set color// past the end of the strip
  }

  for (int i = 0; i < SweepSize; i++) {
    int pos = i + sweepPos + (NUM_LEDS / 5); // if(pos > NUM_LEDS){ sweepPos = 0;}    // if(pos < 0) continue;  // not on the strip yet    // Serial.println(pos);
    pos += NUM_LEDS;
    leds[pos % NUM_LEDS] = ColorFromPalette(sweep, (255 / SweepSize) * i);  // set color// past the end of the strip
  }

  for (int i = 0; i < SweepSize; i++) {
    int pos = i + sweepPos + (NUM_LEDS / 5 * 2); // if(pos > NUM_LEDS){ sweepPos = 0;}  // if(pos < 0) continue;  // not on the strip yet // Serial.println(pos);
    pos += NUM_LEDS;
    leds[pos % NUM_LEDS] = ColorFromPalette(sweep, (255 / SweepSize) * i);  // set color// past the end of the strip
  }

  for (int i = 0; i < SweepSize; i++) {
    int pos = i + sweepPos + (NUM_LEDS / 5 * 3); // if(pos > NUM_LEDS){ sweepPos = 0;}    // if(pos < 0) continue;  // not on the strip yet  // Serial.println(pos);
    pos += NUM_LEDS;
    leds[pos % NUM_LEDS] = ColorFromPalette(sweep, (255 / SweepSize) * i);  // set color// past the end of the strip
  }

  for (int i = 0; i < SweepSize; i++) {
    int pos = i + sweepPos + (NUM_LEDS / 18); // if(pos > NUM_LEDS){ sweepPos = 0;}    // if(pos < 0) continue;  // not on the strip yet  // Serial.println(pos);
    pos += NUM_LEDS;
    leds[pos % NUM_LEDS] = ColorFromPalette(sweep, (255 / SweepSize) * i);  // set color// past the end of the strip
  }

}