Merge branch 'master' into philb-branch

Author: ladyada

Slideshows_Soundtrack/slideshows_soundtrack.py

@@ -1,19 +1,38 @@
 import board
 from adafruit_slideshow import SlideShow, PlayBackDirection
 import audioio
+import digitalio
 import touchio
 
 # Create the slideshow object that plays through once alphabetically.
 slideshow = SlideShow(board.DISPLAY)
 
-# Create the touch objects on the first and last teeth
-back_button = touchio.TouchIn(board.TOUCH1)
-forward_button = touchio.TouchIn(board.TOUCH4)
+# Set the touch objects to the first and last teeth
+back_pin = board.TOUCH1
+forward_pin = board.TOUCH4
+
+# Perform a couple extra steps for the HalloWing M4
+try:
+    if getattr(board, "CAP_PIN"):
+        # Create digitalio objects and pull low for HalloWing M4
+        cap_pin = digitalio.DigitalInOut(board.CAP_PIN)
+        cap_pin.direction = digitalio.Direction.OUTPUT
+        cap_pin.value = False
+    if getattr(board, "SPEAKER_ENABLE"):
+        # Enable the Speaker
+        speaker_enable = digitalio.DigitalInOut(board.SPEAKER_ENABLE)
+        speaker_enable.direction = digitalio.Direction.OUTPUT
+        speaker_enable.value = True
+except AttributeError:
+    pass
+
+# Create the touchio objects for HalloWing M0
+back_button = touchio.TouchIn(back_pin)
+forward_button = touchio.TouchIn(forward_pin)
 
 # Setup the speaker output
 a = audioio.AudioOut(board.SPEAKER)
 
-
 # Helper function that takes in the file name string, splits it at the period, and keeps only the
 # beginning of the string. i.e. kitten.bmp becomes kitten.
 def basename(file_name):