first outline

NeoTrellis_M4_Sound_Board/code.py

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+import time
+import board
+import busio
+import audioio
+import adafruit_fancyled.adafruit_fancyled as fancy
+import adafruit_trellism4
+import adafruit_adxl34x
+from color_names import *
+
+SAMPLE_FOLDER = "/samples/"  # 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 ()
+VOICES = [("01.wav", RED),
+          ("02.wav", ORANGE),
+          ("03.wav", YELLOW),
+          ("04.wav", GREEN),
+          ("05.wav", TEAL),
+          ("06.wav", BLUE),
+          ("07.wav", PURPLE),
+          ("08.wav", PINK),
+          ("09.wav", RED),
+          ("10.wav", ORANGE),
+          ("11.wav", YELLOW),
+          ("12.wav", GREEN),
+          ("13.wav", TEAL),
+          ("14.wav", BLUE),
+          ("15.wav", PURPLE),
+          ("16.wav", PINK),
+          ("17.wav", RED),
+          ("18.wav", ORANGE),
+          ("19.wav", YELLOW),
+          ("20.wav", GREEN),
+          ("21.wav", TEAL),
+          ("22.wav", BLUE),
+          ("23.wav", PURPLE),
+          ("24.wav", PINK),
+          ("25.wav", RED),
+          ("26.wav", ORANGE),
+          ("27.wav", YELLOW),
+          ("28.wav", GREEN),
+          ("29.wav", TEAL),
+          ("30.wav", BLUE),
+          ("31.wav", PURPLE),
+          ("32.wav", PINK)]
+
+# For the intro, pick any number of colors to make a fancy gradient!
+INTRO_SWIRL = [PINK, TEAL, YELLOW]
+# the color for the selected sample
+SELECTED_COLOR = WHITE
+
+# Our keypad + neopixel driver
+trellis = adafruit_trellism4.TrellisM4Express(rotation=270)
+
+# 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 = audioio.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
+with open(SAMPLE_FOLDER+VOICES[0][0], "rb") as f:
+    wav = audioio.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)
+
+current_press = set()
+
+while True:
+    pressed = set(trellis.pressed_keys)
+    #print(pressed)
+    for down in pressed - current_press:
+        print("Pressed down", down)
+        current_press = pressed
+        button_num = down[0]*8 + down[1] + 1
+        print(button_num)
+
+    time.sleep(0.01)  # a little delay here helps avoid debounce annoyances

NeoTrellis_M4_Sound_Board/color_names.py

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+RED = 0xFF0000
+MAROON = 0x800000
+ORANGE = 0xFFC300
+YELLOW = 0xFFFF00
+OLIVE = 0x808000
+GREEN = 0x008000
+AQUA = 0x00FFFF
+TEAL = 0x008080
+BLUE = 0x0000FF
+NAVY = 0x000080
+PURPLE = 0x800080
+PINK = 0xFF00FF
+WHITE = 0xFFFFFF
+BLACK = 0x000000