Add Piantor to boards

boards/beekeeb/piantor/README.md

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+# Piantor
+
+The [Piantor by beekeeb](https://github.com/beekeeb/piantor), is a 36- or 42-key staggered column, diodeless keyboard. It is based on the [Cantor by Diego Palacios](https://github.com/diepala/cantor), but uses a Raspberry Pi Pico as the controller.
+
+The default keymap replicates the Corne/crkbd default keymap by foostan and drashna.
+
+Purchase: [BeeKeeb](https://shop.beekeeb.com/product/piantor-keyboard-kit/)
+
+## Microcontroller and Split Support
+This firmware assumes that VBUS will be used for split side detection as in the QMK implementation. This requires that the USB cable is plugged into the left side to ensure that the correct pin mapping is used. If using a rp2040 microcontroller without a VBus sense circuit (like the WeAct RP2040), resistors must be soldered to the bottom of the PCBs, and you will need to uncomment line 9 of kb.py to assign the VBus sense pin to GP24.
+
+An alternative option is to detect the split sides using the drive names. See the [KMK documentation](http://kmkfw.io/docs/split_keyboards#drive-names) for setting this up. Once you have set drive names, you can comment out lines 12-14 and uncomment lines 17-18 in kb.py to enable this option.

boards/beekeeb/piantor/kb.py

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+import board
+import digitalio
+
+from storage import getmount
+
+from kmk.kmk_keyboard import KMKKeyboard as _KMKKeyboard
+from kmk.scanners.keypad import KeysScanner
+
+# VBus pin config
+VBUS_PIN = board.VBUS_SENSE  # RPi Pico
+# VBUS_PIN = board.A3      # WeAct RP2040 + resistors on Piantor PCB
+
+# split side detection using vbus sense
+vbus = digitalio.DigitalInOut(VBUS_PIN)
+vbus.direction = digitalio.Direction.INPUT
+isRight = True if vbus.value == False else False
+
+# alternate option: set side based on drive names
+# name = str(getmount('/').label)
+# isRight = True if name.endswith('R') else False
+
+# GPIO to key mapping, Left
+_KEY_CFG_LEFT = [
+    board.GP5,  board.GP4,  board.GP11, board.GP15, board.GP3,  board.GP2,
+    board.GP22, board.GP20, board.GP10, board.GP14, board.GP9,  board.GP8,
+    board.GP21, board.GP19, board.GP6,  board.GP7,  board.GP13, board.GP12,
+                                        board.GP17, board.GP18, board.GP16 
+]
+
+# GPIO to key mapping, Left
+_KEY_CFG_RIGHT = [
+    board.GP22, board.GP21, board.GP2, board.GP5, board.GP8, board.GP11,
+    board.GP20, board.GP19, board.GP3, board.GP6, board.GP9, board.GP12,
+    board.GP18, board.GP17, board.GP4, board.GP7, board.GP10, board.GP13,
+    board.GP15, board.GP14, board.GP16
+]
+
+class KMKKeyboard(_KMKKeyboard):
+    def __init__(self):
+        # create and register the scanner
+        self.matrix = KeysScanner(
+            pins = _KEY_CFG_RIGHT if isRight == True else _KEY_CFG_LEFT
+        )
+
+    # flake8: noqa
+    # fmt: off
+    coord_mapping = [
+     0,  1,  2,  3,  4,  5,   21, 22, 23, 24, 25, 26,
+     6,  7,  8,  9, 10, 11,   27, 28, 29, 30, 31, 32,
+    12, 13, 14, 15, 16, 17,   33, 34, 35, 36, 37, 38,
+                18, 19, 20,   39, 40, 41
+    ]

boards/beekeeb/piantor/main.py

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+import board
+import digitalio
+
+from kb import KMKKeyboard, isRight
+from storage import getmount
+
+from kmk.keys import KC
+from kmk.modules.layers import Layers
+from kmk.modules.split import Split, SplitSide, SplitType
+
+keyboard = KMKKeyboard()
+keyboard.tap_time = 100
+
+layers = Layers()
+
+split_side = SplitSide.RIGHT if isRight else SplitSide.LEFT
+
+data_pin = board.GP1 if split_side == SplitSide.LEFT else board.GP0
+data_pin2 = board.GP0 if split_side == SplitSide.LEFT else board.GP1
+
+split = Split(
+    split_side=split_side,
+    split_type=SplitType.UART,
+    split_flip=False,
+    data_pin=data_pin,
+    data_pin2=data_pin2
+)
+keyboard.modules = [layers, split]
+
+LOWER = KC.MO(1)
+RAISE = KC.MO(2)
+ADJUST = KC.LT(3, KC.SPC)
+
+# Same as the default Corne/crkbd keymap by foostan and drashna
+keyboard.keymap = [
+    [  #QWERTY
+        KC.TAB,    KC.Q,    KC.W,    KC.E,    KC.R,    KC.T,                         KC.Y,    KC.U,    KC.I,    KC.O,   KC.P,  KC.BSPC,\
+        KC.LCTL,   KC.A,    KC.S,    KC.D,    KC.F,    KC.G,                         KC.H,    KC.J,    KC.K,    KC.L, KC.SCLN, KC.QUOT,\
+        KC.LSFT,   KC.Z,    KC.X,    KC.C,    KC.V,    KC.B,                         KC.N,    KC.M, KC.COMM,  KC.DOT, KC.SLSH, KC.RSFT,\
+                                            KC.LGUI,   LOWER,  ADJUST,     KC.ENT,   RAISE,  KC.RALT,
+    ],
+    [  #LOWER
+        KC.ESC,   KC.N1,   KC.N2,   KC.N3,   KC.N4,   KC.N5,                         KC.N6,   KC.N7,   KC.N8,   KC.N9,   KC.N0, KC.BSPC,\
+        KC.LCTL,  KC.NO,   KC.NO,   KC.NO,   KC.NO,   KC.NO,                         KC.LEFT, KC.DOWN, KC.UP,   KC.RIGHT, KC.NO,   KC.NO,  \
+        KC.LSFT,  KC.NO,   KC.NO,   KC.NO,   KC.NO,   KC.NO,                         KC.NO,   KC.NO,   KC.NO,   KC.NO,   KC.NO,   KC.NO,  \
+                                            KC.LGUI,   LOWER,  ADJUST,     KC.ENT,   RAISE,  KC.RALT,
+    ],
+    [  #RAISE
+        KC.ESC, KC.EXLM,   KC.AT, KC.HASH,  KC.DLR, KC.PERC,                         KC.CIRC, KC.AMPR, KC.ASTR, KC.LPRN, KC.RPRN, KC.BSPC,\
+        KC.LCTL, KC.NO,   KC.NO,   KC.NO,   KC.NO,   KC.NO,                          KC.MINS,  KC.EQL, KC.LCBR, KC.RCBR, KC.PIPE,  KC.GRV,\
+        KC.LSFT, KC.NO,   KC.NO,   KC.NO,   KC.NO,   KC.NO,                          KC.UNDS, KC.PLUS, KC.LBRC, KC.RBRC, KC.BSLS, KC.TILD,\
+                                            KC.LGUI,   LOWER,  ADJUST,     KC.ENT,   RAISE,  KC.RALT,
+    ],
+    [  #ADJUST
+        KC.NO,   KC.NO,   KC.NO,   KC.NO,   KC.NO,   KC.NO,                          KC.NO,   KC.NO,   KC.NO,   KC.NO,   KC.NO,   KC.NO,  \
+        KC.NO,   KC.NO,   KC.NO,   KC.NO,   KC.NO,   KC.NO,                          KC.NO,   KC.NO,   KC.NO,   KC.NO,   KC.NO,   KC.NO,  \
+        KC.NO,   KC.NO,   KC.NO,   KC.NO,   KC.NO,   KC.NO,                          KC.NO,   KC.NO,   KC.NO,   KC.NO,   KC.NO,   KC.NO,  \
+                                            KC.LGUI,   LOWER,  ADJUST,     KC.ENT,   RAISE,  KC.RALT,
+    ]
+]
+
+if __name__ == '__main__':
+    keyboard.go()