Adding Pimoroni Keybow and Keybow 2040

boards/pimoroni/keybow/code.py

@@ -0,0 +1,24 @@
+from keybow import Keybow
+
+from kmk.extensions.media_keys import MediaKeys
+from kmk.keys import KC
+from kmk.modules.layers import Layers
+
+keybow = Keybow()
+
+# fmt: off
+keybow.keymap = [
+    [
+        KC.A, KC.B, KC.C,
+        KC.E, KC.F, KC.G,
+        KC.I, KC.J, KC.K,
+        KC.M, KC.N, KC.O,
+    ]
+]
+
+keybow.extensions.extend([MediaKeys()])
+keybow.modules.extend([Layers()])
+# fmt: on
+
+if __name__ == '__main__':
+    keybow.go()

boards/pimoroni/keybow/keybow.py

@@ -0,0 +1,94 @@
+'''
+KMK keyboard for Pimoroni Keybow.
+
+WARNING: This doesn't currently function correctly on the Raspberry Pi Zero,
+some of the keys are stuck in the 'pressed' position. There's either a bug in
+the keypad implementation on the rpi0, or the pin numbers don't match the pins
+in linux.
+
+This is a 4x3 macro pad designed to fit the rpi's GPIO connector. Each key is
+attached to a single GPIO and has an APA102 LED mounted underneath it.
+
+The layout of the board is as follows (GPIO connector on the left):
+
+R0 | D20    D6   D22
+R1 | D17   D16   D12
+R2 | D24   D27   D26
+R0 | D13    D5   D23
+    ------------------
+      C0    C1    C2
+
+This board also functions with an adaptor (see
+https://learn.adafruit.com/itsybitsy-keybow-mechanical-keypad/) to work with an
+itsybitsy in place of the rpi, which uses an alternate pin mapping:
+
+R0 |  A2    A1    A0
+R1 |  A5    A4    A3
+R2 | D10    D9    D7
+R3 | D11   D12    D2
+    ------------------
+      C0    C1    C2
+
+This keyboard file should automatically select the correct mapping at runtime.
+'''
+
+import board
+
+import adafruit_dotstar
+import sys
+
+from kmk.extensions.rgb import RGB, AnimationModes
+from kmk.kmk_keyboard import KMKKeyboard
+from kmk.scanners.native_keypad_scanner import keys_scanner
+
+
+# fmt: off
+def raspi_pins():
+    return [
+        [board.D20, board.D16, board.D26],
+        [board.D6,  board.D12, board.D13],
+        [board.D22, board.D24, board.D5],
+        [board.D17, board.D27, board.D23],
+    ]
+
+
+def itsybitsy_pins():
+    return [
+        [board.D11, board.D12, board.D2],
+        [board.D10, board.D9,  board.D7],
+        [board.A5,  board.A4,  board.A3],
+        [board.A2,  board.A1,  board.A0],
+    ]
+# fmt: on
+
+
+def isPi():
+    return sys.platform == 'BROADCOM'
+
+
+if isPi():
+    _KEY_CFG = raspi_pins()
+    _LED_PINS = (board.SCK, board.MOSI)
+else:
+    _KEY_CFG = itsybitsy_pins()
+    _LED_PINS = (board.SCK, board.MOSI)
+
+
+led_strip = adafruit_dotstar.DotStar(_LED_PINS[0], _LED_PINS[1], 12)
+rgb_ext = RGB(
+    pixel_pin=0,
+    pixels=led_strip,
+    num_pixels=12,
+    animation_mode=AnimationModes.BREATHING_RAINBOW,
+)
+
+
+class Keybow(KMKKeyboard):
+    '''
+    Default keyboard config for the Keybow.
+    '''
+
+    extensions = [rgb_ext]
+
+    def __init__(self):
+        self.matrix = keys_scanner(_KEY_CFG)