#include <Adafruit_NeoPixel.h>

#define LED_PIN1 3 // Pin for the first NeoPixel strip
#define LED_COUNT1 32 // Number of NeoPixels in the first strip

#define LED_PIN2 6 // Pin for the second NeoPixel strip
#define LED_COUNT2 32 // Number of NeoPixels in the second strip

Adafruit_NeoPixel strip1(LED_COUNT1, LED_PIN1, NEO_GRB + NEO_KHZ800);
Adafruit_NeoPixel strip2(LED_COUNT2, LED_PIN2, NEO_GRB + NEO_KHZ800);

void setup() {
  // Initialize both NeoPixel strips
  strip1.begin();
  strip2.begin();

  // Set the brightness to full
  strip1.setBrightness(255);
  strip2.setBrightness(255);

  // Create rainbows on each strip
  for (int i = 0; i < LED_COUNT1; i++) {
    int r = 255 - i * 8;
    int g = i * 8;
    int b = 0;
    strip1.setPixelColor(i, strip1.Color(r, g, b));
  }
  strip1.show();

  // Create a copy of the first strip for use in setup()
  Adafruit_NeoPixel strip1copy(strip1);

  for (int i = 0; i < LED_COUNT2; i++) {
    int r = 255 - i * 8;
    int g = i * 8;
    int b = 0;
    strip2.setPixelColor(i, strip2.Color(r, g, b));
  }
  strip2.show();
}

void loop() {
  // Move the first rainbow to the right
  for (int i = LED_COUNT1 - 1; i > 0; i--) {
    strip1.setPixelColor(i, strip1.getPixelColor(i - 1));
  }
  strip1.setPixelColor(0, strip1.Color(0, 0, 0));

  // Move the second rainbow to the left
  for (int i = 0; i < LED_COUNT2 - 1; i++) {
    strip2.setPixelColor(i, strip2.getPixelColor(i + 1));
  }
  strip2.setPixelColor(LED_COUNT2 - 1, strip2.Color(0, 0, 0));

  strip1.show();
  strip2.show();
  delay(100);
}