93 lines
2.4 KiB
Python
93 lines
2.4 KiB
Python
# Music Box code in CircuitPython - Dano Wall and Mike Barela
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from busio import I2C
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from adafruit_seesaw.seesaw import Seesaw
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from adafruit_seesaw.pwmout import PWMOut
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from adafruit_motor import servo
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from analogio import AnalogIn
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from simpleio import map_range
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import neopixel
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import audioio
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import board
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import os
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import random
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# Create seesaw object
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i2c = I2C(board.SCL, board.SDA)
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seesaw = Seesaw(i2c)
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# Create one servo on seesaw servo 2
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pwm = PWMOut(seesaw, 16)
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pwm.frequency = 50
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myservo = servo.Servo(pwm)
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myservo.angle = 0
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# Find all Wave files on the storage
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wavefiles = [file for file in os.listdir("/")
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if (file.endswith(".wav") and not file.startswith("._"))]
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if len(wavefiles) < 1:
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print("No wav files found in root directory")
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else:
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print("Audio files found: ", wavefiles)
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# audio output
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cpx_audio = audioio.AudioOut(board.A0)
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def play_file(filename):
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f = open(filename, "rb")
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wav = audioio.WaveFile(f)
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cpx_audio.play(wav)
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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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rawlight = AnalogIn(board.LIGHT)
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def light():
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peak = map_range(rawlight.value, 2000, 62000, 0, 1023) # map to 0 to 1023
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return int(peak)
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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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index = 0
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sign = 1
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while True:
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if light() < 130:
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# Turn things off if light level < value
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pixels.fill((0, 0, 0))
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# myservo.angle = 0.0
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cpx_audio.stop()
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else:
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# calculate servo rotation
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if index > 246:
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index = 0
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sign = sign * -1
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# Move servo one slot depending on current direction
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if sign == 1:
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myservo.angle = int(index / 2)
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else:
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myservo.angle = 123 - int(index / 2)
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# play wav file when index is a multiple of 40 (~6x per
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# servo rotation and the sound is not already playing
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if (index % 40) == 0 and not cpx_audio.playing:
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play_file(random.choice(wavefiles))
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rainbow(index)
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index += 1
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