first commit

Author: jedgarpark

Pico_RP2040_Mech_Keyboard/pico_mech_keyboard.py

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+# SPDX-FileCopyrightText: 2021 John Park for Adafruit Industries
+# SPDX-License-Identifier: MIT
+# RaspberryPi Pico RP2040 Mechanical Keyboard
+
+import time
+import board
+from digitalio import DigitalInOut, Direction, Pull
+import usb_hid
+from adafruit_hid.keyboard import Keyboard
+from adafruit_hid.keycode import Keycode
+from adafruit_hid.consumer_control import ConsumerControl
+from adafruit_hid.consumer_control_code import ConsumerControlCode
+
+print("---Pico Pad Keyboard---")
+
+led = DigitalInOut(board.LED)
+led.direction = Direction.OUTPUT
+led.value = True
+
+kbd = Keyboard(usb_hid.devices)
+cc = ConsumerControl(usb_hid.devices)
+
+# list of pins to use (skipping GP15 on Pico because it's funky)
+pins = [
+    board.GP0,
+    board.GP1,
+    board.GP2,
+    board.GP3,
+    board.GP4,
+    board.GP5,
+    board.GP6,
+    board.GP7,
+    board.GP8,
+    board.GP9,
+    board.GP10,
+    board.GP11,
+    board.GP12,
+    board.GP13,
+    board.GP14,
+    board.GP16,
+    board.GP17,
+    board.GP18,
+    board.GP19,
+    board.GP20,
+    board.GP21,
+]
+
+MEDIA = 1
+KEY = 2
+
+keymap = {
+    (0): (KEY, (Keycode.GUI, Keycode.C)),
+    (1): (KEY, (Keycode.GUI, Keycode.V)),
+    (2): (KEY, [Keycode.THREE]),
+    (3): (KEY, [Keycode.FOUR]),
+    (4): (KEY, [Keycode.FIVE]),
+    (5): (MEDIA, ConsumerControlCode.VOLUME_DECREMENT),
+    (6): (MEDIA, ConsumerControlCode.VOLUME_INCREMENT),
+
+    (7): (KEY, [Keycode.R]),
+    (8): (KEY, [Keycode.G]),
+    (9): (KEY, [Keycode.B]),
+    (10): (KEY, [Keycode.UP_ARROW]),
+    (11): (KEY, [Keycode.X]),  # plus key
+    (12): (KEY, [Keycode.Y]),
+    (13): (KEY, [Keycode.Z]),
+
+    (14): (KEY, [Keycode.I]),
+    (15): (KEY, [Keycode.O]),
+    (16): (KEY, [Keycode.LEFT_ARROW]),
+    (17): (KEY, [Keycode.DOWN_ARROW]),
+    (18): (KEY, [Keycode.RIGHT_ARROW]),
+    (19): (KEY, [Keycode.ALT]),
+    (20): (KEY, [Keycode.U]),
+
+}
+switches = [0, 1, 2, 3, 4, 5, 6,
+            7, 8, 9, 10, 11, 12, 13,
+            14, 15, 16, 17, 18, 19, 20, 21]
+
+for i in range(21):
+    switches[i] = DigitalInOut(pins[i])
+    switches[i].direction = Direction.INPUT
+    switches[i].pull = Pull.UP
+
+switch_state = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
+
+while True:
+    for button in range(21):
+        if switch_state[button] == 0:
+            if not switches[button].value:
+                try:
+                    if keymap[button][0] == KEY:
+                        kbd.press(*keymap[button][1])
+                    else:
+                        cc.send(keymap[button][1])
+                except ValueError:  # deals w six key limit
+                    pass
+                switch_state[button] = 1
+
+        if switch_state[button] == 1:
+            if switches[button].value:
+                try:
+                    if keymap[button][0] == KEY:
+                        kbd.release(*keymap[button][1])
+
+                except ValueError:
+                    pass
+                switch_state[button] = 0
+
+    time.sleep(0.01)  # debounce