/
code.py
182 lines (162 loc) · 5.86 KB
/
code.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
# SPDX-FileCopyrightText: 2018 Limor Fried for Adafruit Industries
#
# SPDX-License-Identifier: MIT
import time
import board
import audioio
import audiocore
import adafruit_fancyled.adafruit_fancyled as fancy
import adafruit_trellism4
from color_names import * # pylint: disable=wildcard-import,unused-wildcard-import
PLAY_SAMPLES_ON_START = False
SAMPLE_FOLDER = "/xmas/" # the name of the folder containing the samples
# This soundboard can select up to *32* sound clips! each one has a filename
# which will be inside the SAMPLE_FOLDER above, and a *color* in a tuple ()
SAMPLES = [("01.wav", RED),
("02.wav", RED),
("03.wav", RED),
("04.wav", GREEN),
("05.wav", GREEN),
("06.wav", RED),
("07.wav", RED),
("08.wav", RED),
("09.wav", RED),
("10.wav", RED),
("11.wav", GREEN),
("12.wav", GREEN),
("13.wav", GREEN),
("14.wav", GREEN),
("15.wav", RED),
("16.wav", RED),
("17.wav", RED),
("18.wav", GREEN),
("19.wav", GREEN),
("20.wav", GREEN),
("21.wav", GREEN),
("22.wav", GREEN),
("23.wav", GREEN),
("24.wav", RED),
("25.wav", RED),
("26.wav", RED),
("27.wav", RED),
("28.wav", ORANGE),
("29.wav", ORANGE),
("30.wav", RED),
("31.wav", RED),
("32.wav", RED)]
# For the intro, pick any number of colors to make a fancy gradient!
INTRO_SWIRL = [RED, GREEN, BLUE]
# the color for the selected sample
SELECTED_COLOR = TEAL
# Our keypad + neopixel driver
trellis = adafruit_trellism4.TrellisM4Express(rotation=0)
# Play the welcome wav (if its there)
with audioio.AudioOut(board.A1, right_channel=board.A0) as audio:
try:
f = open("welcome.wav", "rb")
wave = audiocore.WaveFile(f)
audio.play(wave)
swirl = 0 # we'll swirl through the colors in the gradient
while audio.playing:
for i in range(32):
palette_index = ((swirl+i) % 32) / 32
color = fancy.palette_lookup(INTRO_SWIRL, palette_index)
# display it!
trellis.pixels[(i%8, i//8)] = color.pack()
swirl += 1
time.sleep(0.005)
f.close()
# Clear all pixels
trellis.pixels.fill(0)
# just hold a moment
time.sleep(0.5)
except OSError:
# no biggie, they probably deleted it
pass
# Parse the first file to figure out what format its in
channel_count = None
bits_per_sample = None
sample_rate = None
with open(SAMPLE_FOLDER+SAMPLES[0][0], "rb") as f:
wav = audiocore.WaveFile(f)
print("%d channels, %d bits per sample, %d Hz sample rate " %
(wav.channel_count, wav.bits_per_sample, wav.sample_rate))
# Audio playback object - we'll go with either mono or stereo depending on
# what we see in the first file
if wav.channel_count == 1:
audio = audioio.AudioOut(board.A1)
elif wav.channel_count == 2:
audio = audioio.AudioOut(board.A1, right_channel=board.A0)
else:
raise RuntimeError("Must be mono or stereo waves!")
# Clear all pixels
trellis.pixels.fill(0)
# turn on maybe play all of the buttons
for i, v in enumerate(SAMPLES):
filename = SAMPLE_FOLDER+v[0]
try:
with open(filename, "rb") as f:
wav = audiocore.WaveFile(f)
print(filename,
"%d channels, %d bits per sample, %d Hz sample rate " %
(wav.channel_count, wav.bits_per_sample, wav.sample_rate))
if wav.channel_count != channel_count:
pass
if wav.bits_per_sample != bits_per_sample:
pass
if wav.sample_rate != sample_rate:
pass
trellis.pixels[(i%8, i//8)] = v[1]
if PLAY_SAMPLES_ON_START:
audio.play(wav)
while audio.playing:
pass
except OSError:
# File not found! skip to next
pass
def stop_playing_sample(playback_details):
print("playing: ", playback_details)
audio.stop()
trellis.pixels[playback_details['neopixel_location']] = playback_details['neopixel_color']
playback_details['file'].close()
playback_details['voice'] = None
current_press = set()
currently_playing = {'voice' : None}
last_samplenum = None
while True:
pressed = set(trellis.pressed_keys)
# if pressed:
# print("Pressed:", pressed)
just_pressed = pressed - current_press
just_released = current_press - pressed
# if just_pressed:
# print("Just pressed", just_pressed)
for down in just_pressed:
sample_num = down[1]*8 + down[0]
print(sample_num)
try:
filename = SAMPLE_FOLDER+SAMPLES[sample_num][0]
f = open(filename, "rb")
wav = audiocore.WaveFile(f)
# is something else playing? interrupt it!
if currently_playing['voice'] != None:
print("Interrupt")
stop_playing_sample(currently_playing)
trellis.pixels[down] = SELECTED_COLOR
audio.play(wav)
# voice, neopixel tuple, color, and sample, file handle
currently_playing = {
'voice': 0,
'neopixel_location': down,
'neopixel_color': SAMPLES[sample_num][1],
'sample_num': sample_num,
'file': f}
except OSError:
pass # File not found! skip to next
# if just_released:
# print("Just released:", just_released)
# check if any samples are done
if not audio.playing and currently_playing['voice'] != None:
stop_playing_sample(currently_playing)
time.sleep(0.01) # a little delay here helps avoid debounce annoyances
current_press = pressed