from machine import Pin
import neopixel
import time

LED_PIN = 5
LED_COUNT = 16
SPEED = 0.001
OFFSET = LED_COUNT // 2

np = neopixel.NeoPixel(Pin(LED_PIN), LED_COUNT)

# <<< CHANGE THIS TO SET BACKGROUND COLOR >>>
BACKGROUND = (180,120, 30)  # Example: blue (R,G,B)
# --------------------------------------------


pos = 0

while True:

    # Set all LEDs to the background color
    for i in range(LED_COUNT):
        np[i] = BACKGROUND

    # Two rotating white LEDs
    led1 = pos % LED_COUNT
    led2 = (pos + OFFSET) % LED_COUNT

    np[led1] = (255, 255, 255)   # bright white
    np[led2] = (255, 255, 255)

    np.write()

    pos = (pos + 1) % LED_COUNT
    time.sleep(SPEED)