Add Sparky automaton audio playback functionality

Author: TheKitty

Crickits/Crickit_Sparky_Automaton/code.py

@@ -0,0 +1,51 @@
+# SPDX-FileCopyrightText: 2018 Limor Fried for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
+import os
+import time
+import random
+import board
+import audioio
+import audiocore
+from adafruit_crickit import crickit
+
+# Sparky automaton
+
+# Find all Wave files on the storage
+wavefiles = [file for file in os.listdir("/")
+             if (file.endswith(".wav") and not file.startswith("._"))]
+print("Audio files found: ", wavefiles)
+
+# mouth servo
+mouth_servo = crickit.servo_1
+# TowerPro servos like 500/2500 pulsewidths
+mouth_servo.set_pulse_width_range(min_pulse=500, max_pulse=2500)
+
+# Servo angles
+MOUTH_START = 100
+MOUTH_END = 90
+
+# Starting servo location
+mouth_servo.angle = MOUTH_START
+
+# Audio playback object and helper to play a full file
+a = audioio.AudioOut(board.A0)
+
+# Play a wave file and move the mouth while its playing!
+def play_file(wavfile):
+    print("Playing", wavfile)
+    with open(wavfile, "rb") as f:
+        wav = audiocore.WaveFile(f)
+        a.play(wav)
+        while a.playing:  # turn servos, motors, etc. during playback
+            mouth_servo.angle = MOUTH_END
+            time.sleep(0.15)
+            mouth_servo.angle = MOUTH_START
+            time.sleep(0.15)
+
+while True:
+    # Play a random quip
+    play_file(random.choice(wavefiles))
+    # then hang out for a few seconds
+    time.sleep(3)