Linker Kit Base Set Raspberry Pi 
Veröffentlicht: 09.10.2018  Copyright by Maker Factory  10 
3.  DIE RGB-LED 
Beispielcode fortgeführt: 
Führen Sie den Beispielcode mit folgenden Befehlen im Terminal aus: 
# Main program logic follows: 
if __name__ == '__main__': 
  # Process arguments 
  parser = argparse.ArgumentParser() 
  parser.add_argument('-c', '--clear', acon='store_true', help='clear the display on exit') 
  args = parser.parse_args() 
  # Create NeoPixel object with appropriate conguraon.  
  strip = Adafruit_NeoPixel(LED_COUNT, LED_PIN, LED_FREQ_HZ, LED_DMA, LED_INVERT, 
LED_BRIGHTNESS, LED_CHANNEL) 
  # Inalize the library (must be called once before other funcons).  
  strip.begin() 
  print ('Press Ctrl-C to quit.') 
  if not args.clear: 
    print('Use "-c" argument to clear LEDs on exit') 
  try: 
    while True: 
      print ('Color wipe animaons.') 
      colorWipe(strip, Color(255, 0, 0)) # Red wipe  
      colorWipe(strip, Color(0, 255, 0)) # Blue wipe  
      colorWipe(strip, Color(0, 0, 255)) # Green wipe  
      print ('Theater chase animaons.') 
      theaterChase(strip, Color(127, 127, 127)) # White theater chase 
      theaterChase(strip, Color(127,  0,  0)) # Red theater chase  
      theaterChase(strip, Color( 0,  0, 127)) # Blue theater chase  
      print ('Rainbow animaons.') 
      rainbow(strip) 
      rainbowCycle(strip) 
      theaterChaseRainbow(strip) 
  except KeyboardInterrupt: 
    if args.clear: 
      colorWipe(strip, Color(0,0,0), 10) 
cd /rpi_ws281x/python/examples 
sudo python strandtest.py