Day/Night Lighting Controller

// Day/night cycle with sunrise/sunset
const int SKY_PIN = 9;
const int WARM_PIN = 10;

void setSkyBrightness(int hour) {
  int brightness;
  if (hour >= 6 && hour <= 8) {
    // Sunrise
    brightness = map(hour, 6, 8, 0, 255);
  } else if (hour >= 18 && hour <= 20) {
    // Sunset
    brightness = map(hour, 18, 20, 255, 0);
  } else if (hour > 8 && hour < 18) {
    brightness = 255; // Day
  } else {
    brightness = 0; // Night
  }
  analogWrite(SKY_PIN, brightness);
}