9 files changed, 166 insertions, 7 deletions
diff --git a/keyboards/chavdai40/readme.md b/keyboards/chavdai40/readme.md
index 57af68d0ab..6925457a0e 100644
--- a/keyboards/chavdai40/readme.md
+++ b/keyboards/chavdai40/readme.md
@@ -5,15 +5,17 @@
 Chavdai40 is very simple decoratable 40% keyboard
 
 * Keyboard Maintainer: [t-miyajima](https://github.com/dvorak55)
-* Hardware Supported: Chavdai40 PCB rev1
-* Hardware Availability: not yet available.
+* Hardware Supported: Chavdai40 PCB rev1,rev2
+* Hardware Availability: [yushakobo](https://yushakobo.jp/shop/consign_chavdai40/)
 
 Make example for this keyboard (after setting up your build environment):
 
-    make chavdai40:default
+    make chavdai40/rev1:default  
+    make chavdai40/rev2:default
 
 Flashing example for this keyboard:
 
-    make chavdai40:default:flash
+    make chavdai40/rev1:default:flash  
+    make chavdai40/rev2: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/chavdai40/config.h b/keyboards/chavdai40/rev1/config.h
index a3dcf84e9a..a3dcf84e9a 100644
--- a/keyboards/chavdai40/config.h
+++ b/keyboards/chavdai40/rev1/config.h
diff --git a/keyboards/chavdai40/chavdai40.c b/keyboards/chavdai40/rev1/rev1.c
index 6101732e2b..116c301c2b 100644
--- a/keyboards/chavdai40/chavdai40.c
+++ b/keyboards/chavdai40/rev1/rev1.c
@@ -13,4 +13,4 @@
  * 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 "chavdai40.h"
+#include "rev1.h"
diff --git a/keyboards/chavdai40/chavdai40.h b/keyboards/chavdai40/rev1/rev1.h
index a10f695c78..c5899e24bc 100644
--- a/keyboards/chavdai40/chavdai40.h
+++ b/keyboards/chavdai40/rev1/rev1.h
@@ -17,10 +17,10 @@
 
 #pragma once
 
-#define XXX KC_NO
-
 #include "quantum.h"
 
+#define XXX KC_NO
+
 // This a shortcut to help you visually see your layout.
 
 #define LAYOUT_44key( \
diff --git a/keyboards/chavdai40/rules.mk b/keyboards/chavdai40/rev1/rules.mk
index 64c6f662af..64c6f662af 100644
--- a/keyboards/chavdai40/rules.mk
+++ b/keyboards/chavdai40/rev1/rules.mk
diff --git a/keyboards/chavdai40/rev2/config.h b/keyboards/chavdai40/rev2/config.h
new file mode 100644
index 0000000000..a95f025f42
--- /dev/null
+++ b/keyboards/chavdai40/rev2/config.h
@@ -0,0 +1,74 @@
+/* Copyright 2020 t-miyajima
+ *
+ * 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       0x16D0
+#define PRODUCT_ID      0x0F95
+#define DEVICE_VER      0x0002
+#define MANUFACTURER    t-miyajima
+#define PRODUCT         Chavdai40 rev2
+
+/* usb power settings */
+#define USB_MAX_POWER_CONSUMPTION 100
+
+/* key matrix size */
+#define MATRIX_ROWS 4
+#define MATRIX_COLS 13
+
+ 
+#define MATRIX_ROW_PINS { A0, A15, B5, B6 }
+#define MATRIX_COL_PINS { B7, B4, B3, A8, B1, B0, A7, A6, A5, A4, A3, A2, A1 }
+#define UNUSED_PINS
+
+/* COL2ROW, ROW2COL*/
+#define DIODE_DIRECTION COL2ROW
+
+/* 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
+
+/* 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
diff --git a/keyboards/chavdai40/rev2/rev2.c b/keyboards/chavdai40/rev2/rev2.c
new file mode 100644
index 0000000000..6bd488c299
--- /dev/null
+++ b/keyboards/chavdai40/rev2/rev2.c
@@ -0,0 +1,16 @@
+/* Copyright 2020 t-miyajima
+ *
+ * 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 "rev2.h"
diff --git a/keyboards/chavdai40/rev2/rev2.h b/keyboards/chavdai40/rev2/rev2.h
new file mode 100644
index 0000000000..c5899e24bc
--- /dev/null
+++ b/keyboards/chavdai40/rev2/rev2.h
@@ -0,0 +1,49 @@
+/* Copyright 2020 t-miyajima
+ *
+ * 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"
+
+#define XXX KC_NO
+
+// This a shortcut to help you visually see your layout.
+
+#define LAYOUT_44key( \
+    k01, k02, k03, k04, k05, k06, k07, k08, k09, k10, k11, k12, k13, \
+    k14 , k15, k16, k17, k18, k19, k20, k21, k22, k23, k24,  k25   , \
+     k26 ,  k27, k28, k29, k30, k31, k32, k33, k34, k35,  k36,  k37, \
+         k38,  k39,      k40,         k41,   k42,   k43,   k44       \
+) { \
+    { k01, k02, k03, k04, k05, k06, k07, k08, k09, k10, k11, k12, k13 }, \
+    { k14, k15, k16, k17, k18, k19, k20, k21, k22, k23, k24, k25, XXX }, \
+    { k26, k27, k28, k29, k30, k31, k32, k33, k34, k35, k36, k37, XXX }, \
+    { k38, k39, XXX, k40, XXX, k41, XXX, XXX, k42, k43, k44, XXX, XXX }  \
+}
+
+#define LAYOUT_42key( \
+    k01, k02, k03, k04, k05, k06, k07, k08, k09, k10, k11, k12, k13, \
+    k14 , k15, k16, k17, k18, k19, k20, k21, k22, k23, k24,  k25   , \
+     k26 ,  k27, k28, k29, k30, k31, k32, k33, k34, k35,  k36,  k37, \
+         k38,  k39,                   k41,          k43,   k44       \
+) { \
+    { k01, k02, k03, k04, k05, k06, k07, k08, k09, k10, k11, k12, k13 }, \
+    { k14, k15, k16, k17, k18, k19, k20, k21, k22, k23, k24, k25, XXX }, \
+    { k26, k27, k28, k29, k30, k31, k32, k33, k34, k35, k36, k37, XXX }, \
+    { k38, k39, XXX, XXX, XXX, k41, XXX, XXX, XXX, k43, k44, XXX, XXX }  \
+}
+
diff --git a/keyboards/chavdai40/rev2/rules.mk b/keyboards/chavdai40/rev2/rules.mk
new file mode 100644
index 0000000000..64c6f662af
--- /dev/null
+++ b/keyboards/chavdai40/rev2/rules.mk
@@ -0,0 +1,18 @@
+# MCU name
+MCU = STM32F042
+
+# 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
+\ No newline at end of file