1+ """ Simple FancyLED example for NeoPixel strip
2+ """
3+
4+ import board
5+ import neopixel
6+ import adafruit_fancyled .adafruit_fancyled as fancy
7+
8+ num_leds = 17
9+
10+ # Declare a Water Colors palette
11+ palette = [fancy .CRGB (0 , 214 , 214 ), # blues and cyans
12+ fancy .CRGB (0 , 92 , 160 ),
13+ fancy .CRGB (0 , 123 , 255 ),
14+ fancy .CRGB (0 , 68 , 214 )]
15+
16+ # Declare a Fire Colors palette
17+ #palette = [fancy.CRGB(0, 0, 0), # Black
18+ # fancy.CHSV(1.0), # Red
19+ # fancy.CRGB(1.0, 1.0, 0.0), # Yellow
20+ # 0xFFFFFF] # White
21+
22+ # Declare a NeoPixel object on pin D6 with num_leds pixels, no auto-write.
23+ # Set brightness to max because we'll be using FancyLED's brightness control.
24+ pixels = neopixel .NeoPixel (board .D1 , num_leds , brightness = 1.0 ,
25+ auto_write = False )
26+
27+ offset = 0 # Positional offset into color palette to get it to 'spin'
28+
29+ while True :
30+ for i in range (num_leds ):
31+ # Load each pixel's color from the palette using an offset, run it
32+ # through the gamma function, pack RGB value and assign to pixel.
33+ color = fancy .palette_lookup (palette , offset + i / num_leds )
34+ color = fancy .gamma_adjust (color , brightness = 0.25 )
35+ pixels [i ] = color .pack ()
36+ pixels .show ()
37+
38+ offset += 0.02 # Bigger number = faster spin
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