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Deco_Keypad/code.py

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+# SPDX-FileCopyrightText: Copyright (c) 2021 John Park for Adafruit
+#
+# SPDX-License-Identifier: MIT
+# Deco Keypad
+
+
+import time
+import board
+from digitalio import DigitalInOut, Pull
+from adafruit_debouncer import Debouncer
+import usb_hid
+from adafruit_hid.keyboard import Keyboard
+from adafruit_hid.keyboard_layout_us import KeyboardLayoutUS
+from adafruit_hid.keycode import Keycode
+import neopixel
+
+print("- Deco Keypad -")
+time.sleep(1)  # Sleep for a bit to avoid a race condition on some systems
+
+#  ----- Keymap -----  #
+# change as needed, e.g. capital A (Keycode.SHIFT, Keycode.A)
+switch_a_output = Keycode.Z
+switch_b_output = Keycode.X
+
+#  ----- Keyboard setup -----  #
+keyboard = Keyboard(usb_hid.devices)
+keyboard_layout = KeyboardLayoutUS(keyboard)  # We're in the US :)
+
+# ----- Key setup ----- #
+switch_a_in = DigitalInOut(board.D5)
+switch_b_in = DigitalInOut(board.D6)
+switch_a_in.pull = Pull.UP
+switch_b_in.pull = Pull.UP
+switch_a = Debouncer(switch_a_in)
+switch_b = Debouncer(switch_b_in)
+
+# ----- NeoPixel setup ----- #
+MAGENTA = 0xFF00FF
+CYAN = 0x0088DD
+WHITE = 0xCCCCCC
+BLACK = 0x000000
+
+pixel_pin = board.D9
+pixels = neopixel.NeoPixel(pixel_pin, 2, brightness=1.0)
+pixels.fill(BLACK)
+time.sleep(0.3)
+pixels.fill(WHITE)
+time.sleep(0.3)
+pixels.fill(BLACK)
+time.sleep(0.3)
+pixels[0] = MAGENTA
+pixels[1] = CYAN
+
+
+while True:
+    switch_a.update()  # Debouncer checks for changes in switch state
+    switch_b.update()
+
+    if switch_a.fell:
+        keyboard.press(switch_a_output)
+        pixels[0] = WHITE
+    if switch_a.rose:
+        keyboard.release(switch_a_output)
+        pixels[0] = MAGENTA
+
+    if switch_b.fell:
+        keyboard.press(switch_b_output)
+        pixels[1] = WHITE
+    if switch_b.rose:
+        keyboard.release(switch_b_output)
+        pixels[1] = CYAN