23 lines
617 B
Python
23 lines
617 B
Python
import time
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import array
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import math
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import audioio
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import board
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import digitalio
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button = digitalio.DigitalInOut(board.A1)
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button.switch_to_input(pull=digitalio.Pull.UP)
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length = 8000 // 440
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tone_volume = 0.1 # Increase this to increase the volume of the tone.
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sine_wave = array.array("H", [0] * length)
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for i in range(length):
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sine_wave[i] = int((1 + math.sin(math.pi * 2 * i / 18)) * tone_volume * (2 ** 15))
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audio = audioio.AudioOut(board.A0)
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sine_wave = audioio.RawSample(sine_wave)
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while True:
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if not button.value:
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audio.play(sine_wave, loop=True)
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time.sleep(1)
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audio.stop()
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