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add compatibility for AudioOut API changes in CP 3.x #10

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Merged
merged 1 commit into from
Oct 10, 2018
Merged

add compatibility for AudioOut API changes in CP 3.x #10

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20 changes: 17 additions & 3 deletions adafruit_rtttl.py
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,7 @@
__version__ = "0.0.0-auto.0"
__repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_RTTTL"

import sys
import time
import pulseio

Expand Down Expand Up @@ -128,8 +129,16 @@ def _play_to_pin(tune, base_tone, min_freq, duration, octave, tempo):
base_tone.frequency = int(PIANO[piano_note])
base_tone.duty_cycle = 2 ** 15
else:
base_tone.frequency = int(16000 * (PIANO[piano_note] / min_freq))
base_tone.play(loop=True)
# AudioOut interface changed in CP 3.x
if sys.implementation.version[0] >= 3:
pitch = int(PIANO[piano_note])
sine_wave = sine.sine_wave(16000, pitch)
sine_wave_sample = audioio.RawSample(sine_wave)
base_tone.play(sine_wave_sample, loop=True)
else:
base_tone.frequency = int(
16000 * (PIANO[piano_note] / min_freq))
base_tone.play(loop=True)

time.sleep(4 / note_duration * 60 / tempo)
if pwm:
Expand Down Expand Up @@ -167,7 +176,12 @@ def play(pin, rtttl, octave=None, duration=None, tempo=None):
if AUDIOIO_AVAILABLE:
wave, min_freq = _get_wave(tune, octave)
try:
base_tone = audioio.AudioOut(pin, wave)
# AudioOut interface changed in CP 3.x; a waveform if now pass
# directly to .play(), generated for each note in _play_to_pin()
if sys.implementation.version[0] >= 3:
base_tone = audioio.AudioOut(pin)
else:
base_tone = audioio.AudioOut(pin, wave)
except ValueError:
# No DAC on the pin so use PWM.
pass
Expand Down