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()

def wheel(pos):
    if pos < 0 or pos > 255:
        return (0, 0, 0)
    if pos < 85:
        return (255 - pos * 3, pos * 3, 0)
    if pos < 170:
        pos -= 85
        return (0, 255 - pos * 3, pos * 3)
    pos -= 170
    return (pos * 3, 0, 255 - pos * 3)

def rainbow(delay=0.1):
    while True:
        for j in range(256):
            for i in range(NUM_LEDS):
                pixel_index = (i * 256 // NUM_LEDS + j) & 255
                np[i] = wheel(pixel_index)
            np.write()
            time.sleep(delay)


# 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()
rainbow()