diff --git a/keyboards/bat43/bat43.c b/keyboards/bat43/bat43.c
new file mode 100644
index 0000000000..5d52c672b6
--- /dev/null
+++ b/keyboards/bat43/bat43.c
@@ -0,0 +1,17 @@
+/* Copyright 2020 yfuku
+ *
+ * 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 "bat43.h"
diff --git a/keyboards/bat43/bat43.h b/keyboards/bat43/bat43.h
new file mode 100644
index 0000000000..cf21486a9e
--- /dev/null
+++ b/keyboards/bat43/bat43.h
@@ -0,0 +1,46 @@
+/* Copyright 2020 yfuku
+ *
+ * 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.
+ */
+
+
+#define LAYOUT( \
+ k00, k01, k02, k03, k04, k05, k40, k41, k42, k43, k44, k45, \
+ k10, k11, k12, k13, k14, k15, k30, k50, k51, k52, k53, k54, k55, \
+ k20, k21, k22, k23, k24, k25, k60, k61, k62, k63, k64, k65, \
+ k33, k34, k35, k70, k71, k72, \
+ k74, k75, k73, k31, k32 \
+) { \
+ { k00, k01, k02, k03, k04, k05 }, \
+ { k10, k11, k12, k13, k14, k15 }, \
+ { k20, k21, k22, k23, k24, k25 }, \
+ { k30, k31, k32, k33, k34, k35 }, \
+ { k40, k41, k42, k43, k44, k45 }, \
+ { k50, k51, k52, k53, k54, k55 }, \
+ { k60, k61, k62, k63, k64, k65 }, \
+ { k70, k71, k72, k73, k74, k75 }, \
+}
diff --git a/keyboards/bat43/config.h b/keyboards/bat43/config.h
new file mode 100644
index 0000000000..57d65233c7
--- /dev/null
+++ b/keyboards/bat43/config.h
@@ -0,0 +1,252 @@
+/*
+Copyright 2020 yfuku
+
+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 0x1070
+#define DEVICE_VER 0x0001
+#define MANUFACTURER yfuku
+#define PRODUCT bat43
+#define DESCRIPTION 43key keyboard
+
+/* key matrix size */
+#define MATRIX_ROWS 8
+#define MATRIX_COLS 6
+
+/*
+ * 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 { E6, D7, C6, D4, F7, F6, F5, F4 }
+#define MATRIX_COL_PINS { B6, B2, B3, B1, B5, B4 }
+// #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
+
+// #define BACKLIGHT_PIN B7
+// #define BACKLIGHT_BREATHING
+// #define BACKLIGHT_LEVELS 3
+
+// #define RGB_DI_PIN E2
+// #ifdef RGB_DI_PIN
+// #define RGBLED_NUM 16
+// #define RGBLIGHT_HUE_STEP 8
+// #define RGBLIGHT_SAT_STEP 8
+// #define RGBLIGHT_VAL_STEP 8
+// #define RGBLIGHT_LIMIT_VAL 255 /* The maximum brightness level */
+// #define RGBLIGHT_SLEEP /* If defined, the RGB lighting will be switched off when the host goes to sleep */
+// /*== all animations enable ==*/
+// #define RGBLIGHT_ANIMATIONS
+// /*== or choose animations ==*/
+// #define RGBLIGHT_EFFECT_BREATHING
+// #define RGBLIGHT_EFFECT_RAINBOW_MOOD
+// #define RGBLIGHT_EFFECT_RAINBOW_SWIRL
+// #define RGBLIGHT_EFFECT_SNAKE
+// #define RGBLIGHT_EFFECT_KNIGHT
+// #define RGBLIGHT_EFFECT_CHRISTMAS
+// #define RGBLIGHT_EFFECT_STATIC_GRADIENT
+// #define RGBLIGHT_EFFECT_RGB_TEST
+// #define RGBLIGHT_EFFECT_ALTERNATING
+// /*== customize breathing effect ==*/
+// /*==== (DEFAULT) use fixed table instead of exp() and sin() ====*/
+// #define RGBLIGHT_BREATHE_TABLE_SIZE 256 // 256(default) or 128 or 64
+// /*==== use exp() and sin() ====*/
+// #define RGBLIGHT_EFFECT_BREATHE_CENTER 1.85 // 1 to 2.7
+// #define RGBLIGHT_EFFECT_BREATHE_MAX 255 // 0 to 255
+// #endif
+
+/* 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 userful 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
+
+/*
+ * 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
+/*
+ * MIDI options
+ */
+
+/* Prevent use of disabled MIDI features in the keymap */
+//#define MIDI_ENABLE_STRICT 1
+
+/* enable basic MIDI features:
+ - MIDI notes can be sent when in Music mode is on
+*/
+//#define MIDI_BASIC
+
+/* enable advanced MIDI features:
+ - MIDI notes can be added to the keymap
+ - Octave shift and transpose
+ - Virtual sustain, portamento, and modulation wheel
+ - etc.
+*/
+//#define MIDI_ADVANCED
+
+/* override number of MIDI tone keycodes (each octave adds 12 keycodes and allocates 12 bytes) */
+//#define MIDI_TONE_KEYCODE_OCTAVES 1
+
+/*
+ * HD44780 LCD Display Configuration
+ */
+/*
+#define LCD_LINES 2 //< number of visible lines of the display
+#define LCD_DISP_LENGTH 16 //< visibles characters per line of the display
+
+#define LCD_IO_MODE 1 //< 0: memory mapped mode, 1: IO port mode
+
+#if LCD_IO_MODE
+#define LCD_PORT PORTB //< port for the LCD lines
+#define LCD_DATA0_PORT LCD_PORT //< port for 4bit data bit 0
+#define LCD_DATA1_PORT LCD_PORT //< port for 4bit data bit 1
+#define LCD_DATA2_PORT LCD_PORT //< port for 4bit data bit 2
+#define LCD_DATA3_PORT LCD_PORT //< port for 4bit data bit 3
+#define LCD_DATA0_PIN 4 //< pin for 4bit data bit 0
+#define LCD_DATA1_PIN 5 //< pin for 4bit data bit 1
+#define LCD_DATA2_PIN 6 //< pin for 4bit data bit 2
+#define LCD_DATA3_PIN 7 //< pin for 4bit data bit 3
+#define LCD_RS_PORT LCD_PORT //< port for RS line
+#define LCD_RS_PIN 3 //< pin for RS line
+#define LCD_RW_PORT LCD_PORT //< port for RW line
+#define LCD_RW_PIN 2 //< pin for RW line
+#define LCD_E_PORT LCD_PORT //< port for Enable line
+#define LCD_E_PIN 1 //< pin for Enable line
+#endif
+*/
+
+/* Bootmagic Lite key configuration */
+// #define BOOTMAGIC_LITE_ROW 0
+// #define BOOTMAGIC_LITE_COLUMN 0
diff --git a/keyboards/bat43/keymaps/default/keymap.c b/keyboards/bat43/keymaps/default/keymap.c
new file mode 100644
index 0000000000..5e4faccf98
--- /dev/null
+++ b/keyboards/bat43/keymaps/default/keymap.c
@@ -0,0 +1,50 @@
+/* Copyright 2020 yfuku
+ *
+ * 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,
+ _LOWER,
+ _RAISE
+};
+
+#define L_SPC LT(_LOWER, KC_SPC)
+#define R_ENT LT(_RAISE, KC_ENT)
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ [_BASE] = LAYOUT(
+ KC_ESC, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_MINS,
+ KC_TAB, KC_A, KC_S, KC_D, KC_F, KC_G, KC_BSPC, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_RSFT,
+ KC_LCTL, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RCTL,
+ KC_LGUI, KC_LANG2,L_SPC, R_ENT, KC_LANG1,KC_RALT,
+ KC_A, KC_B, KC_C, KC_D, KC_E
+ ),
+ [_LOWER] = LAYOUT(
+ _______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, KC_EQL, KC_PLUS, KC_ASTR, KC_PERC, _______,
+ _______, KC_1, KC_2, KC_3, KC_4, KC_5, _______, KC_6, KC_7, KC_8, KC_9, KC_0, _______,
+ _______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, _______, _______, _______, _______,
+ _______, _______, _______, KC_DEL, _______, _______,
+ _______, _______, _______, _______, _______
+ ),
+ [_RAISE] = LAYOUT(
+ _______, KC_BSLS, KC_EXLM, KC_AMPR, KC_PIPE, XXXXXXX, XXXXXXX, KC_EQL, KC_PLUS, KC_ASTR, KC_PERC, _______,
+ _______, KC_HASH, KC_GRV, KC_DQT, KC_QUOT, KC_TILD, _______, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT, KC_DLR, _______,
+ _______, XXXXXXX, XXXXXXX, KC_LCBR, KC_LBRC, KC_LPRN, KC_RPRN, KC_RBRC, KC_RCBR, KC_AT, KC_CIRC, _______,
+ _______, _______, KC_BSPC, _______, _______, _______,
+ _______, _______, _______, _______, _______
+ ),
+};
diff --git a/keyboards/bat43/keymaps/default/readme.md b/keyboards/bat43/keymaps/default/readme.md
new file mode 100644
index 0000000000..f72376d89e
--- /dev/null
+++ b/keyboards/bat43/keymaps/default/readme.md
@@ -0,0 +1 @@
+# The default keymap for bat43
diff --git a/keyboards/bat43/readme.md b/keyboards/bat43/readme.md
new file mode 100644
index 0000000000..7097aa7af5
--- /dev/null
+++ b/keyboards/bat43/readme.md
@@ -0,0 +1,15 @@
+# bat43
+
+![bat43](https://user-images.githubusercontent.com/30647434/78112239-e9ef8300-7438-11ea-810b-994a75ffa24e.jpg)
+
+A 43-key keyboard.
+
+* Keyboard Maintainer: [yfuku](https://github.com/yfuku)
+* Hardware Supported: bat43 PCB, Pro Micro
+* Hardware Availability: https://yfuku.booth.pm/
+
+Make example for this keyboard (after setting up your build environment):
+
+ make bat43: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/bat43/rules.mk b/keyboards/bat43/rules.mk
new file mode 100644
index 0000000000..70400b5d0d
--- /dev/null
+++ b/keyboards/bat43/rules.mk
@@ -0,0 +1,32 @@
+# MCU name
+MCU = atmega32u4
+
+# Bootloader selection
+# Teensy halfkay
+# Pro Micro caterina
+# Atmel DFU atmel-dfu
+# LUFA DFU lufa-dfu
+# QMK DFU qmk-dfu
+# ATmega32A bootloadHID
+# ATmega328P USBasp
+BOOTLOADER = caterina
+
+# Build Options
+# change yes to no to disable
+#
+BOOTMAGIC_ENABLE = no # Virtual DIP switch configuration
+MOUSEKEY_ENABLE = yes # Mouse keys
+EXTRAKEY_ENABLE = no # 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
+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