first commit mp3 tap player for Lars

Author: jedgarpark

MP3_Tap_Player/mp3_tap_player.py

@@ -0,0 +1,49 @@
+# MP3 playback with tap trigger
+# Works on M4 and nRF52840 based boards with accelerometer or Propmaker
+import time
+import board
+import busio
+import digitalio
+import audioio
+import audiomp3
+import adafruit_lis3dh
+
+startup_play = False  # set to True to play all samples once on startup
+
+# Set up accelerometer on I2C bus
+i2c = busio.I2C(board.SCL, board.SDA)
+int1 = digitalio.DigitalInOut(board.D6)
+accel = adafruit_lis3dh.LIS3DH_I2C(i2c, int1=int1)
+accel.set_tap(1, 100)  # single or double-tap, threshold
+
+# Set up speaker enable pin
+enable = digitalio.DigitalInOut(board.D10)
+enable.direction = digitalio.Direction.OUTPUT
+enable.value = True
+
+speaker = audioio.AudioOut(board.A0)
+
+sample_number = 0
+
+print("Lars says, 'Hello, CVT Joseph. Tap to play.'")
+
+if startup_play:  # Play all on startup
+    for i in range(10):
+        sample = "/lars/lars_0{}.mp3".format(i)
+        print("Now playing: '{}'".format(sample))
+        mp3stream = audiomp3.MP3Decoder(open(sample, "rb"))
+        speaker.play(mp3stream)
+
+        while speaker.playing:
+            time.sleep(0.1)
+    enable.value = speaker.playing
+
+
+while True:
+    if accel.tapped and speaker.playing is False:
+        sample = "/lars/lars_0{}.mp3".format(sample_number)
+        print("Now playing: '{}'".format(sample))
+        mp3stream = audiomp3.MP3Decoder(open(sample, "rb"))
+        speaker.play(mp3stream)
+        sample_number = (sample_number + 1) % 10
+    enable.value = speaker.playing