44 lines
861 B
Arduino
44 lines
861 B
Arduino
#include <FastLED.h>
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#define LED_PIN 15
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#define NUM_LEDS 5
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CRGB leds[NUM_LEDS];
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void setup() {
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FastLED.addLeds<WS2812, LED_PIN, GRB>(leds, NUM_LEDS);
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FastLED.setBrightness(128);
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FastLED.clear(true);
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}
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// Helper: blink one LED with a color then turn it off
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void blinkLED(int idx, CRGB color, int onMs = 300, int offMs = 150) {
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if (idx < 0 || idx >= NUM_LEDS) return;
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leds[idx] = color;
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FastLED.show();
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delay(onMs);
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leds[idx] = CRGB::Black;
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FastLED.show();
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delay(offMs);
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}
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void loop() {
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// Make sure all LEDs start off
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FastLED.clear();
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FastLED.show();
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for (int i = 0; i < NUM_LEDS; i++) {
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// R -> G -> B for this LED
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blinkLED(i, CRGB::Red);
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blinkLED(i, CRGB::Green);
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blinkLED(i, CRGB::Blue);
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// Ensure it's off before moving on
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leds[i] = CRGB::Black;
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FastLED.show();
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delay(200);
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}
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}
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