LEDBlinkFadeInFadeOut

import time
from rpi_ws281x import PixelStrip, Color
import argparse
import RPi.GPIO as GPIO
import board
import neopixel


# LED strip configuration:
LED_COUNT = 150        # Number of LED pixels.
LED_PIN = 18          # GPIO pin connected to the pixels (18 uses PWM!).
# LED_PIN = 10        # GPIO pin connected to the pixels (10 uses SPI /dev/spidev0.0).
LED_FREQ_HZ = 800000  # LED signal frequency in hertz (usually 800khz)
LED_DMA = 10          # DMA channel to use for generating signal (try 10)
LED_BRIGHTNESS = 255  # Set to 0 for darkest and 255 for brightest
LED_INVERT = False    # True to invert the signal (when using NPN transistor level shift)
LED_CHANNEL = 0       # set to '1' for GPIOs 13, 19, 41, 45 or 53


# Create NeoPixel object with appropriate configuration.
strip = PixelStrip(LED_COUNT, LED_PIN, LED_FREQ_HZ, LED_DMA, LED_INVERT, LED_BRIGHTNESS, LED_CHANNEL)
# Intialize the library (must be called once before other functions).
strip.begin()

print("BEENDE...")
pixels = neopixel.NeoPixel(board.D18, 150)
pixels.fill((255,255,255))
time.sleep(0.5)
pixels.fill((0,0,0))
time.sleep(0.5)
pixels.fill((155,155,155))
time.sleep(0.5)
pixels.fill((0,0,0))
time.sleep(0.5)
pixels.fill((55,55,55))
time.sleep(0.5)
pixels.fill((0,0,0))
for b in range(0,256):
    pixels.fill((b, b, b))
for d in range(0,256):
    pixels.fill((255-d, 255-d, 255-d))
    if d%10 = 0:
        print(d)