#include <Adafruit_NeoPixel.h>

// Declare a NeoPixel strip object with the specified number of pixels and pin number
#define NUM_PIXELS 64
Adafruit_NeoPixel strip(NUM_PIXELS, 6, NEO_GRB + NEO_KHZ800);

void setup() {
  // Initialize the NeoPixel strip
  strip.begin();
  // Set all pixels to off
  strip.clear();
  // Show the changes on the strip
  strip.show();
}

void loop() {
  // Loop through each pixel in the strip
  for (int i = 0; i < NUM_PIXELS; i++) {
    // Calculate the color values for the pixel
    int g = (i * 255) / (NUM_PIXELS - 1);
    int b = 255 - g;
    // Set the pixel to the calculated color
    strip.setPixelColor(i, strip.Color(0, g, b));
  }
  // Show the changes on the strip
  strip.show();
  // Delay for a short time
  delay(100);
}