diff --git a/keyboards/earth_rover/config.h b/keyboards/earth_rover/config.h
new file mode 100644
index 0000000000..6e958f1388
--- /dev/null
+++ b/keyboards/earth_rover/config.h
@@ -0,0 +1,114 @@
+/*
+Copyright 2020 k.bigwheel
+
+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 .
+*/
+
+#pragma once
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID 0xFEED
+#define PRODUCT_ID 0xEE11
+#define DEVICE_VER 0x0001
+#define MANUFACTURER k.bigwheel
+#define PRODUCT earth_rover
+
+/* key matrix size */
+#define MATRIX_ROWS 4
+#define MATRIX_COLS 4
+
+/*
+ * 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 { D4, C6, D7, E6 }
+#define MATRIX_COL_PINS { F4, F5, F6, F7 }
+#define UNUSED_PINS
+
+/* COL2ROW, ROW2COL */
+#define DIODE_DIRECTION COL2ROW
+
+/*
+ * Split Keyboard specific options, make sure you have 'SPLIT_KEYBOARD = yes' in your rules.mk, and define SOFT_SERIAL_PIN.
+ */
+#define SOFT_SERIAL_PIN D0 // or D1, D2, D3, E6
+
+/* 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
+
+/* If defined, GRAVE_ESC will always act as ESC when CTRL is held.
+ * This is useful for the Windows task manager shortcut (ctrl+shift+esc).
+ */
+//#define GRAVE_ESC_CTRL_OVERRIDE
+
+/*
+ * Force NKRO
+ *
+ * Force NKRO (nKey Rollover) to be enabled by default, regardless of the saved
+ * state in the bootmagic EEPROM settings. (Note that NKRO must be enabled in the
+ * makefile for this to work.)
+ *
+ * If forced on, NKRO can be disabled via magic key (default = LShift+RShift+N)
+ * until the next keyboard reset.
+ *
+ * NKRO may prevent your keystrokes from being detected in the BIOS, but it is
+ * fully operational during normal computer usage.
+ *
+ * For a less heavy-handed approach, enable NKRO via magic key (LShift+RShift+N)
+ * or via bootmagic (hold SPACE+N while plugging in the keyboard). Once set by
+ * bootmagic, NKRO mode will always be enabled until it is toggled again during a
+ * power-up.
+ *
+ */
+//#define FORCE_NKRO
+
+/*
+ * 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 */
+#define NO_ACTION_MACRO
+#define NO_ACTION_FUNCTION
+
+/* Bootmagic Lite key configuration */
+//#define BOOTMAGIC_LITE_ROW 0
+//#define BOOTMAGIC_LITE_COLUMN 0
diff --git a/keyboards/earth_rover/earth_rover.c b/keyboards/earth_rover/earth_rover.c
new file mode 100644
index 0000000000..c12eaa8c0e
--- /dev/null
+++ b/keyboards/earth_rover/earth_rover.c
@@ -0,0 +1,17 @@
+/* Copyright 2020 k.bigwheel
+ *
+ * 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 .
+ */
+
+#include "earth_rover.h"
diff --git a/keyboards/earth_rover/earth_rover.h b/keyboards/earth_rover/earth_rover.h
new file mode 100644
index 0000000000..a0676beeb2
--- /dev/null
+++ b/keyboards/earth_rover/earth_rover.h
@@ -0,0 +1,41 @@
+/* Copyright 2020 k.bigwheel
+ *
+ * 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 .
+ */
+
+#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.
+ */
+// clang-format off
+#define LAYOUT( \
+ k00, k01, \
+ k10, k12, k13, k14, \
+ k20, k22, k23, k24, \
+ k30, k32, k33, k34 \
+) { \
+ { KC_NO, k00, k01, KC_NO }, \
+ { k10, k12, k13, k14 }, \
+ { k20, k22, k23, k24 }, \
+ { k30, k32, k33, k34 }, \
+}
+// clang-format on
diff --git a/keyboards/earth_rover/info.json b/keyboards/earth_rover/info.json
new file mode 100644
index 0000000000..3cfc282853
--- /dev/null
+++ b/keyboards/earth_rover/info.json
@@ -0,0 +1,30 @@
+{
+ "keyboard_name": "earth_rover",
+ "url": "https://github.com/bigwheel/earth_rover",
+ "maintainer": "k.bigwheel",
+ "width": 4,
+ "height": 4,
+ "layouts": {
+ "LAYOUT": {
+ "layout": [
+ {"label": "k10", "x": 1.25, "y": 0},
+ {"label": "k20", "x": 2.25, "y": 0},
+
+ {"label": "k01", "x": 0, "y": 1.25},
+ {"label": "k11", "x": 1.25, "y": 1.25},
+ {"label": "k21", "x": 2.25, "y": 1.25},
+ {"label": "k31", "x": 3.5, "y": 1.25},
+
+ {"label": "k02", "x": 0, "y": 2.25},
+ {"label": "k12", "x": 1.25, "y": 2.25},
+ {"label": "k22", "x": 2.25, "y": 2.25},
+ {"label": "k32", "x": 3.5, "y": 2.25},
+
+ {"label": "k03", "x": 0, "y": 3.25},
+ {"label": "k13", "x": 1.25, "y": 3.25},
+ {"label": "k23", "x": 2.25, "y": 3.25},
+ {"label": "k33", "x": 3.5, "y": 3.25}
+ ]
+ }
+ }
+}
diff --git a/keyboards/earth_rover/keymaps/default/keymap.c b/keyboards/earth_rover/keymaps/default/keymap.c
new file mode 100644
index 0000000000..be97773d52
--- /dev/null
+++ b/keyboards/earth_rover/keymaps/default/keymap.c
@@ -0,0 +1,31 @@
+/* Copyright 2020 k.bigwheel
+ *
+ * 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 .
+ */
+#include QMK_KEYBOARD_H
+
+// Defines names for use in layer keycodes and the keymap
+enum layer_names { _BASE };
+
+// clang-format off
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ /* Base */
+ [_BASE] = LAYOUT(
+ KC_A, KC_B,
+ KC_C, KC_D, KC_E, KC_F,
+ KC_G, KC_H, KC_I, KC_J,
+ KC_K, KC_L, KC_M, KC_N
+ )
+};
+// clang-format on
diff --git a/keyboards/earth_rover/keymaps/default/readme.md b/keyboards/earth_rover/keymaps/default/readme.md
new file mode 100644
index 0000000000..aa0b88c386
--- /dev/null
+++ b/keyboards/earth_rover/keymaps/default/readme.md
@@ -0,0 +1 @@
+# The default keymap for earth_rover
diff --git a/keyboards/earth_rover/readme.md b/keyboards/earth_rover/readme.md
new file mode 100644
index 0000000000..84b1ad87d7
--- /dev/null
+++ b/keyboards/earth_rover/readme.md
@@ -0,0 +1,22 @@
+# earth_rover
+
+![earth_rover](https://pbs.twimg.com/media/Eqh29nYUUAA-9NE?format=jpg)
+
+Mechanical warm, or just cubic macro pad.
+
+* Keyboard Maintainer: [k.bigwheel](https://github.com/bigwheel)
+* Build Guide: [bigwheel/earth\_rover](https://github.com/bigwheel/earth_rover)
+* Hardware Supported: [無限の可能性 \| MxLEDBitPCB](https://swanmatch.github.io/MxLEDBitPCB/), Pro Micro
+* Hardware Availability: [魔界鍵盤製作所 \- BOOTH](https://swanmatch.booth.pm/), [Pro Micro (コンスルー付き) \| 遊舎工房](https://yushakobo.jp/shop/promicro-spring-pinheader/)
+
+Make example for this keyboard (after setting up your build environment):
+
+ make earth_rover:default
+
+Reset Pro Micro by reset button on ProMicroSocket (Red LED must light).
+
+Flashing example for this keyboard:
+
+ make earth_rover:default:flash
+
+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/earth_rover/rules.mk b/keyboards/earth_rover/rules.mk
new file mode 100644
index 0000000000..fd76a52478
--- /dev/null
+++ b/keyboards/earth_rover/rules.mk
@@ -0,0 +1,22 @@
+# MCU name
+MCU = atmega32u4
+
+# Bootloader selection
+BOOTLOADER = caterina
+
+# 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 = no # 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 = no # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no # Enable keyboard RGB underglow
+BLUETOOTH_ENABLE = no # Enable Bluetooth
+AUDIO_ENABLE = no # Audio output