74 lines
2.5 KiB
Python
74 lines
2.5 KiB
Python
# SPDX-FileCopyrightText: 2017 John Edgar Park for Adafruit Industries
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#
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# SPDX-License-Identifier: MIT
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# CircuitPython Gemma Gear goggles
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# uses two 16 NeoPixel rings (RGBW)
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# connected to Gemma M0 powered by LiPo battery
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import time
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import board
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import neopixel
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pixpinLeft = board.D1 # Data In attached to Gemma pin D1
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pixpinRight = board.D0 # Data In attached to Gemma pin D0
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numpix = 16
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# uncomment the lines below for RGB NeoPixels
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stripLeft = neopixel.NeoPixel(pixpinLeft, numpix, bpp=3, brightness=.18,
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auto_write=False)
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stripRight = neopixel.NeoPixel(pixpinRight, numpix, bpp=3, brightness=.18,
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auto_write=False)
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# Use these lines for RGBW NeoPixels
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# stripLeft = neopixel.NeoPixel(pixpinLeft, numpix, bpp=4, brightness=.18,
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# auto_write=False)
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# stripRight = neopixel.NeoPixel(pixpinRight, numpix, bpp=4, brightness=.18,
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# auto_write=False)
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def cog(pos):
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# Input a value 0 to 255 to get a color value.
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# Note: switch the commented lines below if using RGB vs. RGBW NeoPixles
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if (pos < 8) or (pos > 250):
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# return (120, 0, 0, 0) #first color, red: for RGBW NeoPixels
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return (120, 0, 0) # first color, red: for RGB NeoPixels
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if pos < 85:
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return (int(pos * 3), int(255 - (pos * 3)), 0)
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# return (125, 35, 0, 0) #second color, brass: for RGBW NeoPixels
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# return (125, 35, 0) # second color, brass: for RGB NeoPixels
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elif pos < 170:
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pos -= 85
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# return (int(255 - pos*3), 0, int(pos*3), 0)#: for RGBW NeoPixels
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return (int(255 - pos * 3), 0, int(pos * 3)) # : for RGB NeoPixels
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else:
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pos -= 170
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# return (0, int(pos*3), int(255 - pos*3), 0)#: for RGBW NeoPixels
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return (0, int(pos * 3), int(255 - pos * 3)) # : for RGB NeoPixels
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def brass_cycle(wait, patternL, patternR):
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# patterns do different things, try:
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# 1 blink
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# 24 chase w pause
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# 64 chase
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# 96 parial chase
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# 128 half turn
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# 230 quarter turn w blink
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# 256 quarter turn
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for j in range(255):
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for i in range(len(stripLeft)):
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idxL = int((i * patternL / len(stripLeft)) + j)
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stripLeft[i] = cog(idxL & 64) # sets the second (brass) color
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idxR = int((i * patternR / len(stripRight)) + j)
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stripRight[i] = cog(idxR & 64) # sets the second (brass) color
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stripLeft.show()
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stripRight.show()
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time.sleep(wait)
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while True:
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brass_cycle(0.01, 256, 24) # brass color cycle with 1ms delay per step
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# patternL, patternR
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