Added may pad files

boards/may_pad/README.md

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+# May Pad
+
+![Navi10](https://images.squarespace-cdn.com/content/v1/5a8723cb7131a5121206d464/1606191335495-CWRDEYORTXXPJLIAWX4K/_RO_5366.jpg?format=1500w)
+
+A through hole kit using a pro micro footprint and through hole diodes! Can be a 20 key macropad or a numpad!
+
+kb.py is designed to work with the Adafruit KB2040  
+
+Retailers (USA)  
+[KeyHive](https://keyhive.xyz/shop/may-pad)
+
+Extensions 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 Extensions
+- [Power](https://github.com/KMKfw/kmk_firmware/tree/master/docs/power.md) Powersaving features for battery life

boards/may_pad/kb.py

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+import board
+
+from kmk.kmk_keyboard import KMKKeyboard as _KMKKeyboard
+from kmk.matrix import DiodeOrientation
+
+
+class KMKKeyboard(_KMKKeyboard):
+    row_pins = (board.D5, board.D6, board.D7, board.D8, board.D9)
+    col_pins = (
+        board.A1,
+        board.A0,
+        board.SCK,
+        board.MISO,
+    )
+    diode_orientation = DiodeOrientation.COLUMNS
+    i2c = board.I2C

boards/may_pad/main.py

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+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
+
+keyboard.keymap = [
+    [
+        KC.NLCK, KC.PSLS, KC.PAST, KC.PMNS,
+        KC.P7,   KC.P8,   KC.P9,   _______,
+        KC.P4,   KC.P5,   KC.P6,   KC.PPLS,
+        KC.P1,   KC.P2,   KC.P3,   _______,
+        _______, KC.P0, KC.PDOT,   KC.PENT,
+        ]
+]
+
+if __name__ == '__main__':
+    keyboard.go()