49 lines
1.3 KiB
Python
49 lines
1.3 KiB
Python
# SPDX-FileCopyrightText: 2018 Mikey Sklar for Adafruit Industries
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#
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# SPDX-License-Identifier: MIT
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import time
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import analogio
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import board
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import simpleio
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from digitalio import DigitalInOut, Direction
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# setup photocell
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photocell = analogio.AnalogIn(board.A1) # analog #1 same pin as Digital #2
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darkness_min = (2 ** 16) * .05 # light level < 5% means darkness
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# setup speaker
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speaker = DigitalInOut(board.D1)
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speaker.direction = Direction.OUTPUT
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# setup servo
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servo = simpleio.Servo(board.D0) # servo motor
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angle = 0
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def chirp():
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for i in range(200,180,-1):
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play_tone(i,9)
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def play_tone(tone_value, duration):
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microseconds = 10 ** 6 # duration divider, convert to microseconds
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for i in range(0, duration):
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i += tone_value * 2
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speaker.value = True
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time.sleep(tone_value / microseconds)
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speaker.value = False
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time.sleep(tone_value / microseconds)
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# loop forever...
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while True:
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# when photocell goes dark (less than 5%)
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# turn on audio
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# rotate stepper
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if photocell.value < darkness_min:
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chirp() # bird chirp noise
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if servo.angle == 0:
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servo.angle = 180 # rotate bird head 180 degrees
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else:
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servo.angle = 0
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time.sleep(.5) # leave some time to complete rotation
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