loop()

void loop

(

)

Definition at line 118 of file Parallel_IO.ino.

            {
    // Pattern: Rainbow on each strip (offset by time)
    // Each strip shows a different hue
    static uint32_t start_time = millis();
    uint32_t elapsed = millis() - start_time;
 
    for (int strip = 0; strip < 4; strip++) {
        CRGB* strip_leds = nullptr;
        switch (strip) {
            case 0: strip_leds = leds0; break;
            case 1: strip_leds = leds1; break;
            case 2: strip_leds = leds2; break;
            case 3: strip_leds = leds3; break;
        }
 
        if (strip_leds) {
            uint8_t hue_offset = strip * 64;  // ~90 degrees per strip
            fill_rainbow(strip_leds, LEDS_PER_STRIP, hue_offset, 10);
 
            // Add motion
            uint8_t rotation = (elapsed / 50 + strip * 20) % 256;
            rotate(strip_leds, LEDS_PER_STRIP, rotation);
        }
    }
 
    // Standard FastLED.show() - all 4 strips output in parallel!
    FastLED.show();
 
    // Frame rate control (~50 FPS)
    delay(20);
 
    // Every 5 seconds, print stats
    static uint32_t last_stats = millis();
    if (millis() - last_stats > 5000) {
        last_stats = millis();
        Serial.print("Frame time: ");
        Serial.print(elapsed);
        Serial.println(" ms");
        Serial.println("All 4 strips updating in parallel via automatic grouping");
    }
}

References FastLED, fill_rainbow(), leds0, leds1, leds2, leds3, LEDS_PER_STRIP, rotate(), and Serial.

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