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libraries/FastLED/examples/RGBW/RGBW.ino

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+
+
+#include <FastLED.h>
+
+// How many leds in your strip?
+#define NUM_LEDS 10
+
+// For led chips like WS2812, which have a data line, ground, and power, you just
+// need to define DATA_PIN.  For led chipsets that are SPI based (four wires - data, clock,
+// ground, and power), like the LPD8806 define both DATA_PIN and CLOCK_PIN
+// Clock pin only needed for SPI based chipsets when not using hardware SPI
+#define DATA_PIN 3
+
+// Define the array of leds
+CRGB leds[NUM_LEDS];
+
+// Time scaling factors for each component
+#define TIME_FACTOR_HUE 60
+#define TIME_FACTOR_SAT 100
+#define TIME_FACTOR_VAL 100
+
+void setup() {
+    Serial.begin(115200);
+    FastLED.addLeds<WS2812, DATA_PIN, GRB>(leds, NUM_LEDS).setRgbw(RgbwDefault());
+    FastLED.setBrightness(128);  // Set global brightness to 50%
+    delay(2000);  // If something ever goes wrong this delay will allow upload.
+}
+
+void loop() {
+    uint32_t ms = millis();
+    
+    for(int i = 0; i < NUM_LEDS; i++) {
+        // Use different noise functions for each LED and each color component
+        uint8_t hue = inoise16(ms * TIME_FACTOR_HUE, i * 1000, 0) >> 8;
+        uint8_t sat = inoise16(ms * TIME_FACTOR_SAT, i * 2000, 1000) >> 8;
+        uint8_t val = inoise16(ms * TIME_FACTOR_VAL, i * 3000, 2000) >> 8;
+        
+        // Map the noise to full range for saturation and value
+        sat = map(sat, 0, 255, 30, 255);
+        val = map(val, 0, 255, 100, 255);
+        
+        leds[i] = CHSV(hue, sat, val);
+    }
+
+    FastLED.show();
+    
+    // Small delay to control the overall speed of the animation
+    //FastLED.delay(1);
+
+}