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RedPill ESP32-S3 – RGB LED Example – Arduino
This demo is a copy of the ColorPalette example that comes with the FastLED library.
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| #include <FastLED.h> | |
| #define LED_PIN LED_BUILTIN // 3 | |
| #define NUM_LEDS 1 | |
| #define BRIGHTNESS 64 | |
| #define LED_TYPE SK6812 | |
| #define COLOR_ORDER GRB | |
| CRGB leds[NUM_LEDS]; | |
| #define UPDATES_PER_SECOND 100 | |
| CRGBPalette16 currentPalette; | |
| TBlendType currentBlending; | |
| extern CRGBPalette16 myRedWhiteBluePalette; | |
| extern const TProgmemPalette16 myRedWhiteBluePalette_p | |
| PROGMEM; | |
| void setup() { | |
| delay(2000); // power-up safety delay | |
| FastLED.addLeds<LED_TYPE, LED_PIN, COLOR_ORDER>(leds, NUM_LEDS).setCorrection(TypicalLEDStrip); | |
| FastLED.setBrightness(BRIGHTNESS); | |
| currentPalette = RainbowColors_p; | |
| currentBlending = LINEARBLEND; | |
| } | |
| void loop() { | |
| ChangePalettePeriodically(); | |
| static uint8_t startIndex = 0; | |
| startIndex = startIndex + 1; /* motion speed */ | |
| FillLEDsFromPaletteColors(startIndex); | |
| FastLED.show(); | |
| FastLED.delay(1000 / UPDATES_PER_SECOND); | |
| } | |
| void FillLEDsFromPaletteColors(uint8_t colorIndex) { | |
| uint8_t brightness = 255; | |
| for (int i = 0; i < NUM_LEDS; ++i) { | |
| leds[i] = ColorFromPalette(currentPalette, colorIndex, brightness, currentBlending); | |
| colorIndex += 3; | |
| } | |
| } | |
| void ChangePalettePeriodically() { | |
| uint8_t secondHand = (millis() / 1000) % 60; | |
| static uint8_t lastSecond = 99; | |
| if (lastSecond != secondHand) { | |
| lastSecond = secondHand; | |
| if (secondHand == 0) { | |
| currentPalette = RainbowColors_p; | |
| currentBlending = LINEARBLEND; | |
| } | |
| if (secondHand == 10) { | |
| currentPalette = RainbowStripeColors_p; | |
| currentBlending = NOBLEND; | |
| } | |
| if (secondHand == 15) { | |
| currentPalette = RainbowStripeColors_p; | |
| currentBlending = LINEARBLEND; | |
| } | |
| if (secondHand == 20) { | |
| SetupPurpleAndGreenPalette(); | |
| currentBlending = LINEARBLEND; | |
| } | |
| if (secondHand == 25) { | |
| SetupTotallyRandomPalette(); | |
| currentBlending = LINEARBLEND; | |
| } | |
| if (secondHand == 30) { | |
| SetupBlackAndWhiteStripedPalette(); | |
| currentBlending = NOBLEND; | |
| } | |
| if (secondHand == 35) { | |
| SetupBlackAndWhiteStripedPalette(); | |
| currentBlending = LINEARBLEND; | |
| } | |
| if (secondHand == 40) { | |
| currentPalette = CloudColors_p; | |
| currentBlending = LINEARBLEND; | |
| } | |
| if (secondHand == 45) { | |
| currentPalette = PartyColors_p; | |
| currentBlending = LINEARBLEND; | |
| } | |
| if (secondHand == 50) { | |
| currentPalette = myRedWhiteBluePalette_p; | |
| currentBlending = NOBLEND; | |
| } | |
| if (secondHand == 55) { | |
| currentPalette = myRedWhiteBluePalette_p; | |
| currentBlending = LINEARBLEND; | |
| } | |
| } | |
| } | |
| void SetupTotallyRandomPalette() { | |
| for (int i = 0; i < 16; ++i) { | |
| currentPalette[i] = CHSV(random8(), 255, random8()); | |
| } | |
| } | |
| void SetupBlackAndWhiteStripedPalette() { | |
| // 'black out' all 16 palette entries... | |
| fill_solid(currentPalette, 16, CRGB::Black); | |
| // and set every fourth one to white. | |
| currentPalette[0] = CRGB::White; | |
| currentPalette[4] = CRGB::White; | |
| currentPalette[8] = CRGB::White; | |
| currentPalette[12] = CRGB::White; | |
| } | |
| void SetupPurpleAndGreenPalette() { | |
| CRGB purple = CHSV(HUE_PURPLE, 255, 255); | |
| CRGB green = CHSV(HUE_GREEN, 255, 255); | |
| CRGB black = CRGB::Black; | |
| currentPalette = CRGBPalette16( | |
| green, green, black, black, | |
| purple, purple, black, black, | |
| green, green, black, black, | |
| purple, purple, black, black); | |
| } | |
| const TProgmemPalette16 myRedWhiteBluePalette_p | |
| PROGMEM = | |
| { | |
| CRGB::Red, | |
| CRGB::Gray, // 'white' is too bright compared to red and blue | |
| CRGB::Blue, | |
| CRGB::Black, | |
| CRGB::Red, | |
| CRGB::Gray, | |
| CRGB::Blue, | |
| CRGB::Black, | |
| CRGB::Red, | |
| CRGB::Red, | |
| CRGB::Gray, | |
| CRGB::Gray, | |
| CRGB::Blue, | |
| CRGB::Blue, | |
| CRGB::Black, | |
| CRGB::Black | |
| }; |
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