Added examples for keyboard shortcuts and a mouse scrollwheel

examples/keyboard_shortcuts.py

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+import time
+from adafruit_hid.keyboard import Keyboard
+from adafruit_hid.keycode import Keycode
+import board
+import digitalio
+
+kbd = Keyboard()
+
+# define buttons. these can be any physical switches/buttons, but the values
+# here work out-of-the-box with a CircuitPlayground Express' A and B buttons.
+swap = digitalio.DigitalInOut(board.D4)
+swap.direction = digitalio.Direction.INPUT
+swap.pull = digitalio.Pull.DOWN
+
+search = digitalio.DigitalInOut(board.D5)
+search.direction = digitalio.Direction.INPUT
+search.pull = digitalio.Pull.DOWN
+
+while True:
+    # press ALT+TAB to swap windows
+    if swap.value:
+        kbd.press(Keycode.ALT, Keycode.TAB)
+        kbd.release_all()
+
+    # press CTRL+K, which in a web browser will open the search dialog
+    elif search.value:
+        kbd.press(Keycode.CONTROL, Keycode.K)
+        kbd.release_all()
+
+    time.sleep(0.1)

examples/scroll.py

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+import time
+from adafruit_hid.mouse import Mouse
+import board
+import digitalio
+
+mouse = Mouse()
+
+# define buttons. these can be any physical switches/buttons, but the values
+# here work out-of-the-box with a CircuitPlayground Express' A and B buttons.
+up = digitalio.DigitalInOut(board.D4)
+up.direction = digitalio.Direction.INPUT
+up.pull = digitalio.Pull.DOWN
+
+down = digitalio.DigitalInOut(board.D5)
+down.direction = digitalio.Direction.INPUT
+down.pull = digitalio.Pull.DOWN
+
+while True:
+    # scroll up one unit (varies with host/OS)
+    if up.value:
+        mouse.move(wheel=1)
+
+    # scroll down one unit (varies with host/OS)
+    elif down.value:
+        mouse.move(wheel=-1)
+
+    time.sleep(0.1)