70 lines
1.8 KiB
Python
70 lines
1.8 KiB
Python
# Music Box code in CircuitPython - Dano Wall and Mike Barela
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# Revised by Ladyada 2019-01-16
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from adafruit_crickit import crickit
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from analogio import AnalogIn
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import neopixel
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import audioio
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import board
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AUDIO_FILENAME = 'fur-elise.wav'
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# Audio output
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cpx_audio = audioio.AudioOut(board.A0)
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audio = audioio.WaveFile(open(AUDIO_FILENAME, "rb"))
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# Rotating dancer
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dancer = crickit.servo_2
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dancer.angle = 0
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MAX_SERVO_ANGLE = 160
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move_direction = 1
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# neopixels!
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pixels = neopixel.NeoPixel(board.NEOPIXEL, 10, brightness=1)
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pixels.fill((0, 0, 0))
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# light sensor
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light = AnalogIn(board.LIGHT)
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def wheel(pos):
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# Input a value 0 to 255 to get a color value.
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# The colours are a transition r - g - b - back to r.
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if pos < 0 or pos > 255:
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return 0, 0, 0
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if pos < 85:
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return int(255 - pos * 3), int(pos * 3), 0
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if pos < 170:
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pos -= 85
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return 0, int(255 - pos * 3), int(pos * 3)
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pos -= 170
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return int(pos * 3), 0, int(255 - (pos * 3))
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def rainbow(value):
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for i in range(10):
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pixels[i] = wheel((value * i) & 255)
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while True:
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# turn off LEDs so we can tell if its dark out!
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pixels.brightness = 0
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# read light level
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light_level = light.value
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# turn LEDs back on
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pixels.brightness = 1
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# Turn things off if light level < value, its dark
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if light_level < 2000:
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pixels.fill((0, 0, 0))
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cpx_audio.stop()
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else:
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if not cpx_audio.playing:
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# Start playing the song again
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cpx_audio.play(audio)
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# calculate servo rotation
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if dancer.angle <= 0:
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move_direction = 1
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if dancer.angle > MAX_SERVO_ANGLE:
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move_direction = -1
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# Move servo one degree forward or backward.
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rainbow(int(dancer.angle * 255/MAX_SERVO_ANGLE))
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dancer.angle += move_direction
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