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+/*
+Copyright 2019 Adam Newbold <adam@neatnik.net>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#include "config_common.h"
+
+/*
+
+Pin Mappings
+============
+
+Dsub-15 Connection
+------------------
+
+ Dsub-15 (female)
+ ,-------------------------.
+ \ 08 07 06 05 04 03 02 01 /
+ \ 15 14 13 12 11 10 09 /
+ `---------------------'
+
+Header Pins
+-----------
+ _____________________________________
+| |
+| 11 10 9 8 7 6 5 4 3 2 1 |
+|_____________________________________|
+
+
+Header / Matrix
+---------------
+
+Pin Name Description
+--------------------------------------------------------------
+1,2,5,3,4,6 Y0-Y5 Y-direction key-matrix connections
+7 NC
+9,11,10,8 X4-X7 X-direction key-matrix connections
+
+
+Microcontroller Configuration
+-----------------------------
+
+(Pins are for an Arduino Micro)
+
++-----------------------------------+
+| Dsub-15 | Header | Matrix | Micro |
+|---------+--------+--------+-------|
+| 12 | 11 | X5 | B0 |
+| 11 | 10 | X6 | D3 |
+| 10 | 9 | X4 | B2 |
+| 9 | 8 | X7 | D2 |
+| NC | 7 | NC | -- |
+| 7 | 6 | Y5 | E6 |
+| 6 | 5 | Y2 | D4 |
+| 5 | 4 | Y4 | D7 |
+| 3 | 3 | Y3 | C6 |
+| 2 | 2 | Y1 | D0 |
+| 1 | 1 | Y0 | D1 |
++-----------------------------------+
+
+Note: Dsub-15 pins 4, 8, 13, 14, and 15 are unused
+
+Reference
+---------
+
+https://deskthority.net/wiki/Apple_Numeric_Keypad_IIe
+https://geekhack.org/index.php?topic=78048.0
+http://wiki.apple2.org/index.php?title=Pinouts#Apple_.2F.2Fe_Numeric_Keypad_connector
+
+*/
+
+#define MATRIX_ROWS 4
+#define MATRIX_COLS 6
+#define MATRIX_ROW_PINS { B0, B2, D2, D3 }
+#define MATRIX_COL_PINS { D1, D0, D4, C6, D7, E6 }
+#define DIODE_DIRECTION COL2ROW
+#define SOFT_SERIAL_PIN D0
+#define DEBOUNCE 5