import machine
import neopixel
import time

NUM_LEDS = 3
PIN_NUM = 4  # GP0

# Setup
pin = machine.Pin(PIN_NUM)
np = neopixel.NeoPixel(pin, NUM_LEDS)

# Farben setzen
def show_colors():
    np[0] = (255, 0, 0)   # Rot
    np[1] = (0, 255, 0)   # Grün
    np[2] = (0, 0, 255)   # Blau
    np.write()

# Lauflicht
def chase(delay=0.2):
    while True:
        for i in range(NUM_LEDS):
            np[i] = (255, 255, 255)
            np.write()
            time.sleep(delay)
            np[i] = (0, 0, 0)

# Farben einmal anzeigen
show_colors()
time.sleep(2)

# Dann Lauflicht starten
chase()