feat(extensions): most of the extensions implementation, by kdb424

boards/boardsource/4x12/README.md

@@ -0,0 +1,21 @@
+# Boardsource 4x12 Ortho
+
+![Boardsource4x12](https://boardsource.imgix.net/164c3388-5057-46c8-8fcd-82c58c7870ce.jpg?raw=true)
+![Boardsource4x12LP](https://boardsource.imgix.net/c2108ea4-7d70-4327-b4b4-88c8191b1369.jpg?raw=true)
+
+The 4x12 ortholinear keyboard is an extremely common and beloved layout within the keyboard community. Made popular by Jack's Planck from OLKB, the 4x12 ortholinear layout is possibly the most popular non-stagger layout available.  
+
+kb.py is designed to work with the nice!nano  
+
+Retailers (USA)  
+4x12  
+[Boardsource](https://boardsource.xyz/store/5ecb78d286879c9a0c22dafd )  
+Low profile 4x12  
+[Boardsource](https://boardsource.xyz/store/5ecb7dad86879c9a0c22db32)  
+
+Extentions enabled by default  
+- [Layers](https://github.com/KMKfw/kmk_firmware/tree/master/docs/layers.md) Need more keys than switches? Use layers.
+- [MediaKeys](https://github.com/KMKfw/kmk_firmware/tree/master/docs/media_keys.md) Control volume and other media functions
+
+Common Extentions
+- [Power](https://github.com/KMKfw/kmk_firmware/tree/master/docs/power.md) Powersaving features for battery life

boards/boardsource/4x12/kb.py

@@ -0,0 +1,25 @@
+import board
+
+from kmk.kmk_keyboard import KMKKeyboard as _KMKKeyboard
+from kmk.matrix import DiodeOrientation
+
+
+class KMKKeyboard(_KMKKeyboard):
+    row_pins = (board.P0_08, board.P0_06, board.P0_17, board.P0_20)
+    col_pins = (
+        board.P0_31,
+        board.P0_29,
+        board.P0_02,
+        board.P1_15,
+        board.P1_13,
+        board.P1_11,
+        board.P0_10,
+        board.P0_09,
+        board.P1_06,
+        board.P1_04,
+        board.P0_11,
+        board.P1_00,
+    )
+    diode_orientation = DiodeOrientation.COLUMNS
+    i2c = board.I2C
+    powersave_pin = board.P0_13

boards/boardsource/4x12/main.py

@@ -0,0 +1,43 @@
+from kb import KMKKeyboard
+from kmk.extensions.media_keys import MediaKeys
+from kmk.keys import KC
+from kmk.modules.layers import Layers
+
+keyboard = KMKKeyboard()
+
+media = MediaKeys()
+layers_ext = Layers()
+
+keyboard.extensions = [media]
+keyboard.modules = [layers_ext]
+
+# Cleaner key names
+_______ = KC.TRNS
+XXXXXXX = KC.NO
+
+LOWER = KC.MO(1)
+RAISE = KC.MO(2)
+
+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.ESC,  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.ENT ,
+        KC.PIPE, KC.LCTL, KC.LALT, KC.LGUI, LOWER,   KC.SPC,  KC.SPC,  RAISE,   KC.LEFT, KC.DOWN, KC.UP,   KC.RGHT
+    ],
+    [  #LOWER
+        KC.GRV,  KC.N1,   KC.N2,   KC.N3,   KC.N4,   KC.N5,   KC.N6,   KC.N7,   KC.N8,   KC.N9,   KC.N0,   KC.BSPC,
+        KC.DEL,  KC.F1,   KC.F2,   KC.F3,   KC.F4,   KC.F5,   KC.F6,   KC.MINS, KC.EQL,  KC.LBRC, KC.RBRC, KC.BSLS,
+        _______, KC.F7,   KC.F8,   KC.F9,   KC.F10,  KC.F11,  KC.F12,  KC.NUHS, KC.NUBS, KC.PGUP, KC.PGDN, _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, KC.MNXT, KC.VOLD, KC.VOLU, KC.MPLY
+    ],
+    [  #RAISE
+        KC.TILD, KC.EXLM, KC.AT,   KC.HASH, KC.DLR,  KC.PERC, KC.CIRC, KC.AMPR, KC.ASTR, KC.LPRN, KC.RPRN, KC.BSPC,
+        KC.DEL,  KC.F1,   KC.F2,   KC.F3,   KC.F4,   KC.F5,   KC.F6,   KC.UNDS, KC.PLUS, KC.LCBR, KC.RCBR, KC.PIPE,
+        _______, KC.F7,   KC.F8,   KC.F9,   KC.F10,  KC.F11,  KC.F12,  _______, _______, KC.HOME, KC.END,  _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, KC.MNXT, KC.VOLD, KC.VOLU, KC.MPLY
+    ]
+]
+
+if __name__ == '__main__':
+    keyboard.go()