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Add audio output option file to Larsio and Chip's Challenge

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This commit is contained in:
RetiredWizard 2025-08-09 14:44:04 -04:00
parent e804e240a6
commit ce4c56b6c8
3 changed files with 105 additions and 20 deletions
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62
Fruit_Jam/Larsio_Paint_Music/sound_manager.py
View file

@ -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 +65,15 @@ class SoundManager:
# Setup PWM audio output on D10
self.audio = audiopwmio.PWMAudioOut(board.D10)
else: # i2s
# optional configuration file for speaker/headphone setting, check current and root directory
launcher_config = {}
if pathlib.Path("launcher.conf.json").exists():
with open("launcher.conf.json", "r") as f:
launcher_config = json.load(f)
elif 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
@ -96,20 +107,49 @@ class SoundManager:
wsel_pin = board.I2S_WS
din_pin = board.I2S_DIN
# Check if DAC is connected
while not i2c.try_lock():
time.sleep(0.01)
if 0x18 in i2c.scan():
ltv320_present = True
else:
ltv320_present = False
i2c.unlock()
# Initialize TLV320
self.tlv = adafruit_tlv320.TLV320DAC3100(i2c)
self.tlv.configure_clocks(sample_rate=11025, bit_depth=16)
self.tlv.headphone_output = True
self.tlv.headphone_volume = -15 # dB
if ltv320_present:
self.tlv = adafruit_tlv320.TLV320DAC3100(i2c)
# Setup I2S audio output - important to do this AFTER configuring the DAC
self.audio = audiobusio.I2SOut(
bit_clock=bclck_pin,
word_select=wsel_pin,
data=din_pin
)
# set sample rate & bit depth
self.tlv.configure_clocks(sample_rate=11025, bit_depth=16)
if "sound" in launcher_config:
if launcher_config["sound"] == "speaker":
# use speaker
self.tlv.speaker_output = True
self.tlv.speaker_volume = -60
else:
# use headphones
self.tlv.headphone_output = True
self.tlv.headphone_volume = -15 # dB
else:
# default to headphones
self.tlv.headphone_output = True
self.tlv.headphone_volume = -15 # dB
# Setup I2S audio output - important to do this AFTER configuring the DAC
self.audio = audiobusio.I2SOut(
bit_clock=bclck_pin,
word_select=wsel_pin,
data=din_pin
)
print("TLV320 I2S DAC initialized successfully")
else:
print("TLV320 DAC not found, falling back to PWM audio output")
self.audio = audiopwmio.PWMAudioOut(board.D10)
print("TLV320 I2S DAC initialized successfully")
except Exception as e:
print(f"Error initializing TLV320 DAC: {e}")
print("Falling back to PWM audio output")

11
Metro/Metro_RP2350_Chips_Challenge/code.py
View file

@ -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,

52
Metro/Metro_RP2350_Chips_Challenge/definitions.py
View file

@ -1,10 +1,60 @@
# SPDX-FileCopyrightText: 2025 Melissa LeBlanc-Williams
#
# SPDX-License-Identifier: MIT
import json
import board
from micropython import const
import adafruit_pathlib as pathlib
import adafruit_tlv320
# optional configuration file for speaker/headphone setting, check current and root directory
launcher_config = {}
if pathlib.Path("launcher.conf.json").exists():
with open("launcher.conf.json", "r") as f:
launcher_config = json.load(f)
elif pathlib.Path("/launcher.conf.json").exists():
with open("/launcher.conf.json", "r") as f:
launcher_config = json.load(f)
# Check if DAC is connected
i2c = board.I2C()
while not i2c.try_lock():
time.sleep(0.01)
if 0x18 in i2c.scan():
ltv320_present = True
else:
ltv320_present = False
i2c.unlock()
if ltv320_present:
dac = adafruit_tlv320.TLV320DAC3100(i2c)
# set sample rate & bit depth
dac.configure_clocks(sample_rate=44100, bit_depth=16)
if "sound" in launcher_config:
if launcher_config["sound"] == "speaker":
# use speaker
dac.speaker_output = True
dac.speaker_volume = -40
elif launcher_config["sound"] != "mute":
# use headphones
dac.headphone_output = True
dac.headphone_volume = -15 # dB
else:
# default to headphones
dac.headphone_output = True
dac.headphone_volume = -15 # dB
# Settings
PLAY_SOUNDS = True
if ltv320_present:
PLAY_SOUNDS = True
else:
PLAY_SOUNDS = False
if "sound" in launcher_config:
if launcher_config["sound"] == "mute":
PLAY_SOUNDS = False
# Timing Constants
TICKS_PER_SECOND = const(20)