[Keyboard] Add support for Southpaw Full Size (#8029)

* Begin work on spfs, migrating ancient config

* QMK breaks if there's a dash in the board name

* Update info.json

* Make indicator LEDs work

* Build a readme

* Change title to match official GB thread name

* Add an ANSI WKL layout for simplicity

* Adjustments as per pullreq recommendations

* Remove unused functions from other keymap

11 files changed, 648 insertions, 0 deletions

diff --git a/keyboards/switchplate/README.md b/keyboards/switchplate/README.md
new file mode 100644
index 0000000000..166853f285
--- /dev/null
+++ b/keyboards/switchplate/README.md
@@ -0,0 +1,4 @@
+# Switchplate Peripherals  
+All keyboards under the Switchplate Peripherals brand
+
+Website: [here](https://switchplate.co/)
\ No newline at end of file
diff --git a/keyboards/switchplate/southpaw_fullsize/config.h b/keyboards/switchplate/southpaw_fullsize/config.h
new file mode 100644
index 0000000000..adbb4f8db4
--- /dev/null
+++ b/keyboards/switchplate/southpaw_fullsize/config.h
@@ -0,0 +1,143 @@
+/*
+Copyright 2020 Ryota Goto
+
+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"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID 0xA103
+#define PRODUCT_ID 0x0017
+#define DEVICE_VER 0x0001
+#define MANUFACTURER Switchplate Peripherals
+#define PRODUCT Southpaw Fullsize
+#define DESCRIPTION A large custom keyboard
+
+/* key matrix size */
+#define MATRIX_ROWS 6
+#define MATRIX_COLS 22
+
+/*
+ * Keyboard Matrix Assignments
+ *
+ * Change this to how you wired your keyboard
+ * COLS: AVR pins used for columns, left to right
+ * ROWS: AVR pins used for rows, top to bottom
+ * DIODE_DIRECTION: COL2ROW = COL = Anode (+), ROW = Cathode (-, marked on diode)
+ *                  ROW2COL = ROW = Anode (+), COL = Cathode (-, marked on diode)
+ *
+ */
+#define MATRIX_ROW_PINS { E1, C0, C1, C2, C3, C4 }
+#define MATRIX_COL_PINS { A7, C7, C6, C5, F0, F1, F2, F3, F4, F5, F6, F7, A0, A1, A2, A3, A4, A5, A6, E0, D7, D6 }
+#define UNUSED_PINS
+
+/* COL2ROW, ROW2COL*/
+#define DIODE_DIRECTION COL2ROW
+
+#define BACKLIGHT_PIN B7
+// #define BACKLIGHT_BREATHING
+#define BACKLIGHT_LEVELS 3
+
+/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
+#define DEBOUNCE 5
+
+/* define if matrix has ghost (lacks anti-ghosting diodes) */
+//#define MATRIX_HAS_GHOST
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
+
+/*
+ * Magic Key Options
+ *
+ * Magic keys are hotkey commands that allow control over firmware functions of
+ * the keyboard. They are best used in combination with the HID Listen program,
+ * found here: https://www.pjrc.com/teensy/hid_listen.html
+ *
+ * The options below allow the magic key functionality to be changed. This is
+ * useful if your keyboard/keypad is missing keys and you want magic key support.
+ *
+ */
+
+/* key combination for magic key command */
+/* defined by default; to change, uncomment and set to the combination you want */
+// #define IS_COMMAND() (get_mods() == MOD_MASK_SHIFT)
+
+/* control how magic key switches layers */
+//#define MAGIC_KEY_SWITCH_LAYER_WITH_FKEYS  true
+//#define MAGIC_KEY_SWITCH_LAYER_WITH_NKEYS  true
+//#define MAGIC_KEY_SWITCH_LAYER_WITH_CUSTOM false
+
+/* override magic key keymap */
+//#define MAGIC_KEY_SWITCH_LAYER_WITH_FKEYS
+//#define MAGIC_KEY_SWITCH_LAYER_WITH_NKEYS
+//#define MAGIC_KEY_SWITCH_LAYER_WITH_CUSTOM
+//#define MAGIC_KEY_HELP           H
+//#define MAGIC_KEY_HELP_ALT       SLASH
+//#define MAGIC_KEY_DEBUG          D
+//#define MAGIC_KEY_DEBUG_MATRIX   X
+//#define MAGIC_KEY_DEBUG_KBD      K
+//#define MAGIC_KEY_DEBUG_MOUSE    M
+//#define MAGIC_KEY_VERSION        V
+//#define MAGIC_KEY_STATUS         S
+//#define MAGIC_KEY_CONSOLE        C
+//#define MAGIC_KEY_LAYER0         0
+//#define MAGIC_KEY_LAYER0_ALT     GRAVE
+//#define MAGIC_KEY_LAYER1         1
+//#define MAGIC_KEY_LAYER2         2
+//#define MAGIC_KEY_LAYER3         3
+//#define MAGIC_KEY_LAYER4         4
+//#define MAGIC_KEY_LAYER5         5
+//#define MAGIC_KEY_LAYER6         6
+//#define MAGIC_KEY_LAYER7         7
+//#define MAGIC_KEY_LAYER8         8
+//#define MAGIC_KEY_LAYER9         9
+//#define MAGIC_KEY_BOOTLOADER     B
+//#define MAGIC_KEY_BOOTLOADER_ALT ESC
+//#define MAGIC_KEY_LOCK           CAPS
+//#define MAGIC_KEY_EEPROM         E
+//#define MAGIC_KEY_EEPROM_CLEAR   BSPACE
+//#define MAGIC_KEY_NKRO           N
+//#define MAGIC_KEY_SLEEP_LED      Z
+
+/*
+ * Feature disable options
+ *  These options are also useful to firmware size reduction.
+ */
+
+/* disable debug print */
+//#define NO_DEBUG
+
+/* disable print */
+//#define NO_PRINT
+
+/* disable action features */
+//#define NO_ACTION_LAYER
+//#define NO_ACTION_TAPPING
+//#define NO_ACTION_ONESHOT
+
+/* disable these deprecated features by default */
+#ifndef LINK_TIME_OPTIMIZATION_ENABLE
+  #define NO_ACTION_MACRO
+  #define NO_ACTION_FUNCTION
+#endif
+
+/* Bootmagic Lite key configuration */
+// #define BOOTMAGIC_LITE_ROW 0
+// #define BOOTMAGIC_LITE_COLUMN 0
diff --git a/keyboards/switchplate/southpaw_fullsize/info.json b/keyboards/switchplate/southpaw_fullsize/info.json
new file mode 100644
index 0000000000..d4823f1085
--- /dev/null
+++ b/keyboards/switchplate/southpaw_fullsize/info.json
@@ -0,0 +1,242 @@
+{
+    "keyboard_name": "southpaw_fullsize", 
+    "url": "", 
+    "maintainer": "ai03", 
+    "width": 22.5, 
+    "height": 6.25, 
+    "layouts": {
+        "LAYOUT_all": {
+            "layout": [
+                {"x":0, "y":0},
+                {"x":1, "y":0},
+                {"x":2, "y":0},
+                {"x":4.25, "y":0},
+                {"x":6.25, "y":0},
+                {"x":7.25, "y":0},
+                {"x":8.25, "y":0},
+                {"x":9.25, "y":0},
+                {"x":10.75, "y":0},
+                {"x":11.75, "y":0},
+                {"x":12.75, "y":0},
+                {"x":13.75, "y":0},
+                {"x":15.25, "y":0},
+                {"x":16.25, "y":0},
+                {"x":17.25, "y":0},
+                {"x":18.25, "y":0},
+                {"x":19.5, "y":0},
+                {"x":20.5, "y":0},
+                {"x":21.5, "y":0},
+                {"x":0, "y":1.25},
+                {"x":1, "y":1.25},
+                {"x":2, "y":1.25},
+                {"x":3, "y":1.25},
+                {"x":4.25, "y":1.25},
+                {"x":5.25, "y":1.25},
+                {"x":6.25, "y":1.25},
+                {"x":7.25, "y":1.25},
+                {"x":8.25, "y":1.25},
+                {"x":9.25, "y":1.25},
+                {"x":10.25, "y":1.25},
+                {"x":11.25, "y":1.25},
+                {"x":12.25, "y":1.25},
+                {"x":13.25, "y":1.25},
+                {"x":14.25, "y":1.25},
+                {"x":15.25, "y":1.25},
+                {"x":16.25, "y":1.25},
+                {"x":17.25, "y":1.25},
+                {"x":18.25, "y":1.25},
+                {"x":19.5, "y":1.25},
+                {"x":20.5, "y":1.25},
+                {"x":21.5, "y":1.25},
+                {"x":0, "y":2.25},
+                {"x":1, "y":2.25},
+                {"x":2, "y":2.25},
+                {"x":3, "y":2.25},
+                {"x":4.25, "y":2.25, "w":1.5},
+                {"x":5.75, "y":2.25},
+                {"x":6.75, "y":2.25},
+                {"x":7.75, "y":2.25},
+                {"x":8.75, "y":2.25},
+                {"x":9.75, "y":2.25},
+                {"x":10.75, "y":2.25},
+                {"x":11.75, "y":2.25},
+                {"x":12.75, "y":2.25},
+                {"x":13.75, "y":2.25},
+                {"x":14.75, "y":2.25},
+                {"x":15.75, "y":2.25},
+                {"x":16.75, "y":2.25},
+                {"x":17.75, "y":2.25, "w":1.5},
+                {"x":19.5, "y":2.25},
+                {"x":20.5, "y":2.25},
+                {"x":21.5, "y":2.25},
+                {"x":0, "y":3.25},
+                {"x":1, "y":3.25},
+                {"x":2, "y":3.25},
+                {"x":3, "y":3.25},
+                {"x":4.25, "y":3.25, "w":1.75},
+                {"x":6, "y":3.25},
+                {"x":7, "y":3.25},
+                {"x":8, "y":3.25},
+                {"x":9, "y":3.25},
+                {"x":10, "y":3.25},
+                {"x":11, "y":3.25},
+                {"x":12, "y":3.25},
+                {"x":13, "y":3.25},
+                {"x":14, "y":3.25},
+                {"x":15, "y":3.25},
+                {"x":16, "y":3.25},
+                {"x":17, "y":3.25},
+                {"x":18, "y":3.25, "w":1.25},
+                {"x":0, "y":4.25},
+                {"x":1, "y":4.25},
+                {"x":2, "y":4.25},
+                {"x":3, "y":4.25},
+                {"x":4.25, "y":4.25, "w":1.25},
+                {"x":5.5, "y":4.25},
+                {"x":6.5, "y":4.25},
+                {"x":7.5, "y":4.25},
+                {"x":8.5, "y":4.25},
+                {"x":9.5, "y":4.25},
+                {"x":10.5, "y":4.25},
+                {"x":11.5, "y":4.25},
+                {"x":12.5, "y":4.25},
+                {"x":13.5, "y":4.25},
+                {"x":14.5, "y":4.25},
+                {"x":15.5, "y":4.25},
+                {"x":16.5, "y":4.25, "w":1.75},
+                {"x":18.25, "y":4.25},
+                {"x":20.5, "y":4.25},
+                {"x":0, "y":5.25},
+                {"x":1, "y":5.25},
+                {"x":2, "y":5.25},
+                {"x":3, "y":5.25},
+                {"x":4.25, "y":5.25, "w":1.25},
+                {"x":5.5, "y":5.25, "w":1.25},
+                {"x":6.75, "y":5.25, "w":1.25},
+                {"x":8, "y":5.25, "w":6.25},
+                {"x":14.25, "y":5.25, "w":1.25},
+                {"x":15.5, "y":5.25, "w":1.25},
+                {"x":16.75, "y":5.25, "w":1.25},
+                {"x":18, "y":5.25, "w":1.25},
+                {"x":19.5, "y":5.25},
+                {"x":20.5, "y":5.25},
+                {"x":21.5, "y":5.25}
+            ]
+        },
+        "LAYOUT_ansi_wkl": {
+            "layout": [
+                {"x":0, "y":0},
+                {"x":1, "y":0},
+                {"x":2, "y":0},
+                {"x":4.25, "y":0},
+                {"x":6.25, "y":0},
+                {"x":7.25, "y":0},
+                {"x":8.25, "y":0},
+                {"x":9.25, "y":0},
+                {"x":10.75, "y":0},
+                {"x":11.75, "y":0},
+                {"x":12.75, "y":0},
+                {"x":13.75, "y":0},
+                {"x":15.25, "y":0},
+                {"x":16.25, "y":0},
+                {"x":17.25, "y":0},
+                {"x":18.25, "y":0},
+                {"x":19.5, "y":0},
+                {"x":20.5, "y":0},
+                {"x":21.5, "y":0},
+                {"x":0, "y":1.25},
+                {"x":1, "y":1.25},
+                {"x":2, "y":1.25},
+                {"x":3, "y":1.25},
+                {"x":4.25, "y":1.25},
+                {"x":5.25, "y":1.25},
+                {"x":6.25, "y":1.25},
+                {"x":7.25, "y":1.25},
+                {"x":8.25, "y":1.25},
+                {"x":9.25, "y":1.25},
+                {"x":10.25, "y":1.25},
+                {"x":11.25, "y":1.25},
+                {"x":12.25, "y":1.25},
+                {"x":13.25, "y":1.25},
+                {"x":14.25, "y":1.25},
+                {"x":15.25, "y":1.25},
+                {"x":16.25, "y":1.25},
+                {"x":17.25, "y":1.25},
+                {"x":18.25, "y":1.25},
+                {"x":19.5, "y":1.25},
+                {"x":20.5, "y":1.25},
+                {"x":21.5, "y":1.25},
+                {"x":0, "y":2.25},
+                {"x":1, "y":2.25},
+                {"x":2, "y":2.25},
+                {"x":3, "y":2.25},
+                {"x":4.25, "y":2.25, "w":1.5},
+                {"x":5.75, "y":2.25},
+                {"x":6.75, "y":2.25},
+                {"x":7.75, "y":2.25},
+                {"x":8.75, "y":2.25},
+                {"x":9.75, "y":2.25},
+                {"x":10.75, "y":2.25},
+                {"x":11.75, "y":2.25},
+                {"x":12.75, "y":2.25},
+                {"x":13.75, "y":2.25},
+                {"x":14.75, "y":2.25},
+                {"x":15.75, "y":2.25},
+                {"x":16.75, "y":2.25},
+                {"x":17.75, "y":2.25, "w":1.5},
+                {"x":19.5, "y":2.25},
+                {"x":20.5, "y":2.25},
+                {"x":21.5, "y":2.25},
+                {"x":0, "y":3.25},
+                {"x":1, "y":3.25},
+                {"x":2, "y":3.25},
+                {"x":3, "y":3.25},
+                {"x":4.25, "y":3.25, "w":1.75},
+                {"x":6, "y":3.25},
+                {"x":7, "y":3.25},
+                {"x":8, "y":3.25},
+                {"x":9, "y":3.25},
+                {"x":10, "y":3.25},
+                {"x":11, "y":3.25},
+                {"x":12, "y":3.25},
+                {"x":13, "y":3.25},
+                {"x":14, "y":3.25},
+                {"x":15, "y":3.25},
+                {"x":16, "y":3.25},
+                {"x":17, "y":3.25, "w":2.25},
+                {"x":0, "y":4.25},
+                {"x":1, "y":4.25},
+                {"x":2, "y":4.25},
+                {"x":3, "y":4.25},
+                {"x":4.25, "y":4.25, "w":2.25},
+                {"x":6.5, "y":4.25},
+                {"x":7.5, "y":4.25},
+                {"x":8.5, "y":4.25},
+                {"x":9.5, "y":4.25},
+                {"x":10.5, "y":4.25},
+                {"x":11.5, "y":4.25},
+                {"x":12.5, "y":4.25},
+                {"x":13.5, "y":4.25},
+                {"x":14.5, "y":4.25},
+                {"x":15.5, "y":4.25},
+                {"x":16.5, "y":4.25, "w":1.75},
+                {"x":18.25, "y":4.25},
+                {"x":20.5, "y":4.25},
+                {"x":0, "y":5.25},
+                {"x":1, "y":5.25},
+                {"x":2, "y":5.25},
+                {"x":3, "y":5.25},
+                {"x":4.25, "y":5.25, "w":1.5},
+                {"x":5.75, "y":5.25},
+                {"x":6.75, "y":5.25, "w":1.5},
+                {"x":8.25, "y":5.25, "w":7},
+                {"x":15.25, "y":5.25, "w":1.5},
+                {"x":16.75, "y":5.25},
+                {"x":17.75, "y":5.25, "w":1.5},
+                {"x":19.5, "y":5.25},
+                {"x":20.5, "y":5.25},
+                {"x":21.5, "y":5.25}
+            ]
+        }
+    }
+}
\ No newline at end of file
diff --git a/keyboards/switchplate/southpaw_fullsize/keymaps/default/keymap.c b/keyboards/switchplate/southpaw_fullsize/keymaps/default/keymap.c
new file mode 100644
index 0000000000..185c98516e
--- /dev/null
+++ b/keyboards/switchplate/southpaw_fullsize/keymaps/default/keymap.c
@@ -0,0 +1,42 @@
+/* Copyright 2020 Ryota Goto
+ *
+ * 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/>.
+ */
+#include QMK_KEYBOARD_H
+
+// Defines names for use in layer keycodes and the keymap
+enum layer_names {
+    _BASE,
+    _FN
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    /* Base */
+    [_BASE] = LAYOUT_all (
+		BL_STEP, BL_TOGG, MO(1) ,               KC_ESC,           KC_F1,   KC_F2,   KC_F3,   KC_F4,       KC_F5,    KC_F6,   KC_F7,   KC_F8,       KC_F9,   KC_F10,  KC_F11,  KC_F12,      KC_PSCR, KC_SLCK, KC_PAUS, 
+		KC_NLCK, KC_PSLS, KC_PAST, KC_PMNS,     KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSPC, KC_BSPC,     KC_INS,  KC_HOME, KC_PGUP, 
+		KC_P7,   KC_P8,   KC_P9,   KC_PPLS,     KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_LBRC, KC_RBRC,          KC_BSLS,     KC_DEL,  KC_END,  KC_PGDN, 
+		KC_P4,   KC_P5,   KC_P6,   KC_PPLS,     KC_CAPS, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT,          KC_ENT,  KC_ENT, 
+		KC_P1,   KC_P2,   KC_P3,   KC_PENT,     KC_LSFT, KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH,          KC_LSFT, KC_LSFT,              KC_UP, 
+		KC_P0,   KC_P0,   KC_PDOT, KC_PENT,     KC_LCTL, KC_LGUI, KC_LALT,                            KC_SPC,                                      KC_RALT, KC_RGUI, KC_MENU, KC_RCTL,     KC_LEFT, KC_DOWN, KC_RGHT
+        ),
+
+	[_FN] = LAYOUT_all (
+		_______, _______, _______,              RESET,            _______, _______, _______, _______,     _______, _______, _______, _______,      _______, _______, _______, _______,     _______, _______, _______, 
+		_______, _______, _______, _______,     _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,     _______, _______, _______, 
+		_______, _______, _______, _______,     _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,     _______, _______, _______, 
+		_______, _______, _______, _______,     _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______, 
+		_______, _______, _______, _______,     _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______,              _______, 
+		_______, _______, _______, _______,     _______, _______, _______,                            _______,                                     _______, _______, _______, _______,     _______, _______, _______),
+};
diff --git a/keyboards/switchplate/southpaw_fullsize/keymaps/default/readme.md b/keyboards/switchplate/southpaw_fullsize/keymaps/default/readme.md
new file mode 100644
index 0000000000..aea00fdd69
--- /dev/null
+++ b/keyboards/switchplate/southpaw_fullsize/keymaps/default/readme.md
@@ -0,0 +1,3 @@
+# The default keymap for southpaw fullsize
+
+Nothing special
\ No newline at end of file
diff --git a/keyboards/switchplate/southpaw_fullsize/keymaps/default_wkl/keymap.c b/keyboards/switchplate/southpaw_fullsize/keymaps/default_wkl/keymap.c
new file mode 100644
index 0000000000..e66da98325
--- /dev/null
+++ b/keyboards/switchplate/southpaw_fullsize/keymaps/default_wkl/keymap.c
@@ -0,0 +1,43 @@
+/* Copyright 2020 Ryota Goto
+ *
+ * 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/>.
+ */
+#include QMK_KEYBOARD_H
+
+// Defines names for use in layer keycodes and the keymap
+enum layer_names {
+    _BASE,
+    _FN
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    /* Base */
+    [_BASE] = LAYOUT_ansi_wkl (
+		BL_STEP, BL_TOGG, MO(1) ,               KC_ESC,           KC_F1,   KC_F2,   KC_F3,   KC_F4,       KC_F5,    KC_F6,   KC_F7,   KC_F8,       KC_F9,   KC_F10,  KC_F11,  KC_F12,      KC_PSCR, KC_SLCK, KC_PAUS, 
+		KC_NLCK, KC_PSLS, KC_PAST, KC_PMNS,     KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSPC, KC_BSPC,     KC_INS,  KC_HOME, KC_PGUP, 
+		KC_P7,   KC_P8,   KC_P9,   KC_PPLS,     KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_LBRC, KC_RBRC,          KC_BSLS,     KC_DEL,  KC_END,  KC_PGDN, 
+		KC_P4,   KC_P5,   KC_P6,   KC_PPLS,     KC_CAPS, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT,                    KC_ENT, 
+		KC_P1,   KC_P2,   KC_P3,   KC_PENT,     KC_LSFT,          KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH,          KC_LSFT, KC_LSFT,              KC_UP, 
+		KC_P0,   KC_P0,   KC_PDOT, KC_PENT,     KC_LCTL, KC_LGUI, KC_LALT,                            KC_SPC,                                               KC_RGUI, KC_MENU, KC_RCTL,     KC_LEFT, KC_DOWN, KC_RGHT
+        ),
+
+	[_FN] = LAYOUT_ansi_wkl (
+		_______, _______, _______,              RESET,            _______, _______, _______, _______,     _______, _______, _______, _______,      _______, _______, _______, _______,     _______, _______, _______, 
+		_______, _______, _______, _______,     _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,     _______, _______, _______, 
+		_______, _______, _______, _______,     _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,     _______, _______, _______, 
+		_______, _______, _______, _______,     _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,                   _______, 
+		_______, _______, _______, _______,     _______,          _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______,              _______, 
+		_______, _______, _______, _______,     _______, _______, _______,                            _______,                                              _______, _______, _______,     _______, _______, _______),
+};
+
diff --git a/keyboards/switchplate/southpaw_fullsize/keymaps/default_wkl/readme.md b/keyboards/switchplate/southpaw_fullsize/keymaps/default_wkl/readme.md
new file mode 100644
index 0000000000..39dc221a47
--- /dev/null
+++ b/keyboards/switchplate/southpaw_fullsize/keymaps/default_wkl/readme.md
@@ -0,0 +1,3 @@
+# The default WKL keymap for southpaw fullsize
+
+Nothing special
\ No newline at end of file
diff --git a/keyboards/switchplate/southpaw_fullsize/readme.md b/keyboards/switchplate/southpaw_fullsize/readme.md
new file mode 100644
index 0000000000..f44d4d46ac
--- /dev/null
+++ b/keyboards/switchplate/southpaw_fullsize/readme.md
@@ -0,0 +1,15 @@
+# Southpaw Full Size
+
+![southpaw_fullsize](https://i.imgur.com/Kt8eN8L.jpg)
+
+A fullsize keyboard with southpaw numpad  
+
+* Keyboard Maintainer: [Switchplate Peripherals](https://switchplate.co/)/[ai03](https://github.com/ai03-2725)
+* Hardware Supported: The Southpaw Full Size PCB
+* Hardware Availability: GB
+
+Make example for this keyboard (after setting up your build environment):
+
+    make switchplate/southpaw_fullsize:default
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
diff --git a/keyboards/switchplate/southpaw_fullsize/rules.mk b/keyboards/switchplate/southpaw_fullsize/rules.mk
new file mode 100644
index 0000000000..46d62bf5dc
--- /dev/null
+++ b/keyboards/switchplate/southpaw_fullsize/rules.mk
@@ -0,0 +1,32 @@
+# MCU name
+MCU = at90usb1286
+
+# Bootloader selection
+#   Teensy       halfkay
+#   Pro Micro    caterina
+#   Atmel DFU    atmel-dfu
+#   LUFA DFU     lufa-dfu
+#   QMK DFU      qmk-dfu
+#   ATmega32A    bootloadHID
+#   ATmega328P   USBasp
+BOOTLOADER = atmel-dfu
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = lite     # Virtual DIP switch configuration
+MOUSEKEY_ENABLE = yes       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = no         # Console for debug
+COMMAND_ENABLE = yes        # Commands for debug and configuration
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
+# if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+NKRO_ENABLE = no            # USB Nkey Rollover
+BACKLIGHT_ENABLE = yes      # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+MIDI_ENABLE = no            # MIDI support
+BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
+AUDIO_ENABLE = no           # Audio output on port C6
+FAUXCLICKY_ENABLE = no      # Use buzzer to emulate clicky switches
+HD44780_ENABLE = no         # Enable support for HD44780 based LCDs
diff --git a/keyboards/switchplate/southpaw_fullsize/southpaw_fullsize.c b/keyboards/switchplate/southpaw_fullsize/southpaw_fullsize.c
new file mode 100644
index 0000000000..253a4fd676
--- /dev/null
+++ b/keyboards/switchplate/southpaw_fullsize/southpaw_fullsize.c
@@ -0,0 +1,51 @@
+/* Copyright 2020 Ryota Goto
+ *
+ * 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/>.
+ */
+
+#include "southpaw_fullsize.h"
+
+// Optional override functions below.
+// You can leave any or all of these undefined.
+// These are only required if you want to perform custom actions.
+
+#define INDICATOR_NUM D3
+#define INDICATOR_CAPS D4
+#define INDICATOR_SCR D5
+
+
+void matrix_init_kb(void) {
+    // put your keyboard start-up code here
+    // runs once when the firmware starts up
+
+    // D3 Numlock, D4 Capslock, D5 Scrlock
+    setPinOutput(INDICATOR_NUM);
+    setPinOutput(INDICATOR_CAPS);
+    setPinOutput(INDICATOR_SCR);
+
+    matrix_init_user();
+}
+
+bool led_update_kb(led_t led_state) {
+    // put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
+    bool res = led_update_user(led_state);
+    if (res)
+    {
+        writePin(INDICATOR_NUM, !led_state.num_lock);
+        writePin(INDICATOR_CAPS, !led_state.caps_lock);
+        writePin(INDICATOR_SCR, !led_state.scroll_lock);
+    }
+    return res;
+}
+
diff --git a/keyboards/switchplate/southpaw_fullsize/southpaw_fullsize.h b/keyboards/switchplate/southpaw_fullsize/southpaw_fullsize.h
new file mode 100644
index 0000000000..b8667f39fc
--- /dev/null
+++ b/keyboards/switchplate/southpaw_fullsize/southpaw_fullsize.h
@@ -0,0 +1,70 @@
+/* Copyright 2020 Ryota Goto
+ *
+ * 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 "quantum.h"
+
+/* This is a shortcut to help you visually see your layout.
+ *
+ * The first section contains all of the arguments representing the physical
+ * layout of the board and position of the keys.
+ *
+ * The second converts the arguments into a two-dimensional array which
+ * represents the switch matrix.
+ */
+
+#define LAYOUT_all( \
+	K000, K001, K002,         K004,       K006, K007, K008, K009,    K010, K011, K012, K013,    K014, K015, K016, K017,   K019, K020, K021, \
+	K100, K101, K102, K103,   K104, K105, K106, K107, K108, K109, K110, K111, K112, K113, K114, K115, K116, K117, K118,   K119, K120, K121, \
+	K200, K201, K202, K203,   K204, K205, K206, K207, K208, K209, K210, K211, K212, K213, K214, K215, K216,       K217,   K219, K220, K221, \
+	K300, K301, K302, K303,   K304, K305, K306, K307, K308, K309, K310, K311, K312, K313, K314, K315,       K316, K317,                     \
+	K400, K401, K402, K403,   K404, K405, K406, K407, K408, K409, K410, K411, K412, K413, K414, K415,       K416, K418,         K420,       \
+	K500, K501, K502, K503,   K504, K505, K506,                       K510,                     K513, K514, K515, K516,   K519, K520, K521  \
+) \
+{ \
+	{ K000,  K001,  K002,  KC_NO, K004,  KC_NO, K006,  K007,  K008,  K009,  K010,  K011,  K012,  K013,  K014,  K015,  K016,  K017,  KC_NO, K019,  K020,  K021  }, \
+	{ K100,  K101,  K102,  K103,  K104,  K105,  K106,  K107,  K108,  K109,  K110,  K111,  K112,  K113,  K114,  K115,  K116,  K117,  K118,  K119,  K120,  K121  }, \
+	{ K200,  K201,  K202,  K203,  K204,  K205,  K206,  K207,  K208,  K209,  K210,  K211,  K212,  K213,  K214,  K215,  K216,  K217,  KC_NO, K219,  K220,  K221  }, \
+	{ K300,  K301,  K302,  K303,  K304,  K305,  K306,  K307,  K308,  K309,  K310,  K311,  K312,  K313,  K314,  K315,  K316,  K317,  KC_NO, KC_NO, KC_NO, KC_NO }, \
+	{ K400,  K401,  K402,  K403,  K404,  K405,  K406,  K407,  K408,  K409,  K410,  K411,  K412,  K413,  K414,  K415,  K416,  KC_NO, K418,  KC_NO, K420,  KC_NO }, \
+	{ K500,  K501,  K502,  K503,  K504,  K505,  K506,  KC_NO, KC_NO, KC_NO, K510,  KC_NO, KC_NO, K513,  K514,  K515,  K516,  KC_NO, KC_NO, K519,  K520,  K521  }  \
+}
+
+#define LAYOUT_ansi_wkl( \
+	K000, K001, K002,         K004,       K006, K007, K008, K009,    K010, K011, K012, K013,    K014, K015, K016, K017,   K019, K020, K021, \
+	K100, K101, K102, K103,   K104, K105, K106, K107, K108, K109, K110, K111, K112, K113, K114, K115, K116, K117, K118,   K119, K120, K121, \
+	K200, K201, K202, K203,   K204, K205, K206, K207, K208, K209, K210, K211, K212, K213, K214, K215, K216,       K217,   K219, K220, K221, \
+	K300, K301, K302, K303,   K304, K305, K306, K307, K308, K309, K310, K311, K312, K313, K314, K315,             K317,                     \
+	K400, K401, K402, K403,   K404,       K406, K407, K408, K409, K410, K411, K412, K413, K414, K415,       K416, K418,         K420,       \
+	K500, K501, K502, K503,   K504, K505, K506,                       K510,                           K514, K515, K516,   K519, K520, K521  \
+) \
+{ \
+	{ K000,  K001,  K002,  KC_NO, K004,  KC_NO, K006,  K007,  K008,  K009,  K010,  K011,  K012,  K013,  K014,  K015,  K016,  K017,  KC_NO, K019,  K020,  K021  }, \
+	{ K100,  K101,  K102,  K103,  K104,  K105,  K106,  K107,  K108,  K109,  K110,  K111,  K112,  K113,  K114,  K115,  K116,  K117,  K118,  K119,  K120,  K121  }, \
+	{ K200,  K201,  K202,  K203,  K204,  K205,  K206,  K207,  K208,  K209,  K210,  K211,  K212,  K213,  K214,  K215,  K216,  K217,  KC_NO, K219,  K220,  K221  }, \
+	{ K300,  K301,  K302,  K303,  K304,  K305,  K306,  K307,  K308,  K309,  K310,  K311,  K312,  K313,  K314,  K315,  KC_NO, K317,  KC_NO, KC_NO, KC_NO, KC_NO }, \
+	{ K400,  K401,  K402,  K403,  K404,  KC_NO, K406,  K407,  K408,  K409,  K410,  K411,  K412,  K413,  K414,  K415,  K416,  KC_NO, K418,  KC_NO, K420,  KC_NO }, \
+	{ K500,  K501,  K502,  K503,  K504,  K505,  K506,  KC_NO, KC_NO, KC_NO, K510,  KC_NO, KC_NO, KC_NO, K514,  K515,  K516,  KC_NO, KC_NO, K519,  K520,  K521  }  \
+}
+
+
+
+
+
+
+
+