#include <Adafruit_NeoPixel.h>

#define PIN        1       // Data pin connected to the NeoPixel strip
#define NUMPIXELS  16      // Number of pixels in the strip
#define DELAY      50      // Delay between color updates (in milliseconds)

Adafruit_NeoPixel strip = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

void setup() {
  strip.begin();
  strip.show();  // Initialize all pixels to 'off'
}

void loop() {
  colorCycle(DELAY);  // Call the colorCycle function with the specified delay
}

void colorCycle(int delayTime) {
  // Define an array of colors to cycle through
  uint32_t colors[] = {strip.Color(255, 0, 0),     // Red
                       strip.Color(0, 255, 0),     // Green
                       strip.Color(0, 0, 255)};    // Blue

  int numColors = sizeof(colors) / sizeof(colors[0]);  // Calculate the number of colors in the array

  // Loop through each pair of colors and blend between them
  for (int i = 0; i < numColors; i++) {
    uint32_t color1 = colors[i];
    uint32_t color2 = colors[(i + 1) % numColors];  // Wrap around to the beginning of the array

    // Blend between color1 and color2
    for (float t = 0.0; t < 1.0; t += 0.01) {
      uint8_t red = (1.0 - t) * ((color1 >> 16) & 0xFF) + t * ((color2 >> 16) & 0xFF);
      uint8_t green = (1.0 - t) * ((color1 >> 8) & 0xFF) + t * ((color2 >> 8) & 0xFF);
      uint8_t blue = (1.0 - t) * (color1 & 0xFF) + t * (color2 & 0xFF);

      // Create a blended color and set all pixels to this color
      uint32_t blendedColor = strip.Color(red, green, blue);
      for (int j = 0; j < strip.numPixels(); j++) {
        strip.setPixelColor(j, blendedColor);
      }

      strip.show();     // Update the NeoPixel strip with the new color
      delay(delayTime); // Delay before updating to the next color
    }
  }
}