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RetiredWizard 2025-08-28 21:41:11 -04:00 committed by GitHub
commit 60ba10e620
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3 changed files with 83 additions and 11 deletions

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@ -9,6 +9,7 @@
import math
import time
import array
import json
import gc
import os
import digitalio
@ -22,6 +23,7 @@ import audiobusio
import audiomixer
import synthio
import board
import adafruit_pathlib as pathlib
import adafruit_tlv320
from adafruit_midi.note_on import NoteOn
from adafruit_midi.note_off import NoteOff
@ -63,6 +65,12 @@ class SoundManager:
# Setup PWM audio output on D10
self.audio = audiopwmio.PWMAudioOut(board.D10)
else: # i2s
# optional configuration file for speaker/headphone setting
launcher_config = {}
if pathlib.Path("/launcher.conf.json").exists():
with open("/launcher.conf.json", "r") as f:
launcher_config = json.load(f)
try:
# Import libraries needed for I2S
#check for Metro RP2350 vs. Fruit Jam
@ -98,9 +106,23 @@ class SoundManager:
# Initialize TLV320
self.tlv = adafruit_tlv320.TLV320DAC3100(i2c)
# set sample rate & bit depth
self.tlv.configure_clocks(sample_rate=11025, bit_depth=16)
self.tlv.headphone_output = True
self.tlv.headphone_volume = -15 # dB
if "tlv320" in launcher_config:
if launcher_config["tlv320"].get("output") == "speaker":
# use speaker
self.tlv.speaker_output = True
self.tlv.dac_volume = launcher_config["tlv320"].get("volume",5) # dB
else:
# use headphones
self.tlv.headphone_output = True
self.tlv.dac_volume = launcher_config["tlv320"].get("volume",0) # dB
else:
# default to headphones
self.tlv.headphone_output = True
self.tlv.dac_volume = 0 # dB
# Setup I2S audio output - important to do this AFTER configuring the DAC
self.audio = audiobusio.I2SOut(

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@ -7,7 +7,6 @@ import board
import picodvi
import framebufferio
import displayio
import adafruit_tlv320
import audiobusio
from audio import Audio
from game import Game
@ -39,16 +38,12 @@ SOUND_EFFECTS = {
displayio.release_displays()
i2c = board.I2C()
dac = adafruit_tlv320.TLV320DAC3100(i2c)
dac.configure_clocks(sample_rate=44100, bit_depth=16)
dac.headphone_output = True
dac.headphone_volume = -15 # dB
if hasattr(board, "I2S_BCLK"):
audio_bus = audiobusio.I2SOut(board.I2S_BCLK, board.I2S_WS, board.I2S_DIN)
else:
elif hasattr(board, "D9") and hasattr(board, "D10") and hasattr(board, "D11"):
audio_bus = audiobusio.I2SOut(board.D9, board.D10, board.D11)
else:
audio_bus = None
audio = Audio(audio_bus, SOUND_EFFECTS)
fb = picodvi.Framebuffer(320, 240, clk_dp=board.CKP, clk_dn=board.CKN,

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@ -1,10 +1,65 @@
# SPDX-FileCopyrightText: 2025 Melissa LeBlanc-Williams
#
# SPDX-License-Identifier: MIT
import json
import time
import board
from micropython import const
import adafruit_pathlib as pathlib
import adafruit_tlv320
# optional configuration file for speaker/headphone setting
launcher_config = {}
if pathlib.Path("/launcher.conf.json").exists():
with open("/launcher.conf.json", "r") as f:
launcher_config = json.load(f)
# Check if DAC is connected
if "I2C" in dir(board):
i2c = board.I2C()
for i in range(500): # try for 5 seconds
if i2c.try_lock():
break
time.sleep(0.01)
if 0x18 in i2c.scan():
tlv320_present = True
else:
tlv320_present = False
i2c.unlock()
else:
tlv320_present = False
if tlv320_present:
dac = adafruit_tlv320.TLV320DAC3100(i2c)
# set sample rate & bit depth
dac.configure_clocks(sample_rate=44100, bit_depth=16)
if "tlv320" in launcher_config:
if launcher_config["tlv320"].get("output") == "speaker":
# use speaker
dac.speaker_output = True
dac.dac_volume = launcher_config["tlv320"].get("volume",5) # dB
else:
# use headphones
dac.headphone_output = True
dac.dac_volume = launcher_config["tlv320"].get("volume",0) # dB
else:
# default to headphones
dac.headphone_output = True
dac.dac_volume = 0 # dB
if tlv320_present:
_default_play_sounds = True
else:
_default_play_sounds = False
if "sound" in launcher_config:
if launcher_config["tlv320"].get("output") == "mute":
_default_play_sounds = False
# Settings
PLAY_SOUNDS = True
PLAY_SOUNDS = _default_play_sounds
# Timing Constants
TICKS_PER_SECOND = const(20)