Initial code for the Grand Central Soundboard

Initial code for the Grand Central Soundboard

Grand_Central_Soundboard/code.py

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+import time
+import os
+import digitalio
+import audioio
+import board
+import adafruit_matrixkeypad
+ 
+# Membrane 3x4 matrix keypad - https://www.adafruit.com/product/419
+cols = [digitalio.DigitalInOut(x) for x in (board.D3, board.D2, board.D1)]
+rows = [digitalio.DigitalInOut(x) for x in (board.D7, board.D6, board.D5, board.D4)]
+ 
+keys = ((1, 2, 3),
+        (4, 5, 6),
+        (7, 8, 9),
+        ('*', 0, '#'))
+ 
+keypad = adafruit_matrixkeypad.Matrix_Keypad(rows, cols, keys)
+
+wavefiles = [file for file in os.listdir("/sounds/")
+             if (file.endswith(".wav") and not file.startswith("._"))]
+if len(wavefiles) < 1:
+    print("No wav files found in root directory")
+else:
+    print("Audio files found: ", wavefiles)
+
+# audio output
+gc_audio = audioio.AudioOut(board.A0)
+
+def play_file(filename):
+    if gc_audio.playing:
+        gc_audio.stop()
+    f = open(filename, "rb")
+    wav = audioio.WaveFile(f)
+    gc_audio.play(wav)
+ 
+while True:
+    keys = keypad.pressed_keys
+    if keys:
+        print("Pressed: ", keys)
+        button = keys[0]
+        if button > 0 and button < 9:
+            soundfile = "/sounds/0"+str(keys[0])+".wav"
+            play_file(soundfile)
+        if button == 0:
+            gc_audio.stop()
+    time.sleep(0.1)