[Keyboard] Add Absinthe keyboard (#8769)

* Initial absinthe setup

* Update Absinthe files

* Add absinthe ANSI layout

* Update absinthe keymaps

* Update Absinthe for rev3

* Flip encoder pins

* Fix rules.mk

* Update absinthe files

* Fix absinthe ansi config

* Add RGB

* Change rules for absinthe for firmware size

* Fix pins for rev4

* Fix pins and GESC

* Remove GESC from ANSI layout

* Rebase upstream/master

* Update formatting and convention from 8769 feedback

* Format rules.mk

12 files changed, 518 insertions, 0 deletions

diff --git a/keyboards/absinthe/absinthe.c b/keyboards/absinthe/absinthe.c
new file mode 100644
index 000000000..502139ed0
--- /dev/null
+++ b/keyboards/absinthe/absinthe.c
@@ -0,0 +1,17 @@
+/* Copyright 2020 cfbender
+ *
+ * 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 "absinthe.h"
diff --git a/keyboards/absinthe/absinthe.h b/keyboards/absinthe/absinthe.h
new file mode 100644
index 000000000..890aff643
--- /dev/null
+++ b/keyboards/absinthe/absinthe.h
@@ -0,0 +1,68 @@
+/* Copyright 2020 cfbender
+ *
+ * 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
+
+#define XXX KC_NO
+
+#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_default( \
+    K00, K10, K01, K11, K02, K12, K03, K13, K04, K14, K05, K15, K06, K16, K07, K17, K08, K18, \
+    K20,      K21, K31, K22, K32, K23, K33, K24, K34, K25, K35, K26, K36, K27, K37, K28, K38, \
+    K40,      K41, K51, K42, K52, K43, K53, K44, K54, K45, K55, K46,      K56,                \
+    K60, K61, K71, K62, K72, K63, K73, K64, K74, K65, K75,           K66, K67,      K68,     \
+    K80, K81, K82,                K83,                       K76,  K86,   K87, K77, K88, K78  \
+) \
+{ \
+    { K00, K01, K02, K03, K04, K05, K06, K07, K08 },\
+    { K10, K11, K12, K13, K14, K15, K16, K17, K18 },\
+    { K20, K21, K22, K23, K24, K25, K26, K27, K28 },\
+    { XXX, K31, K32, K33, K34, K35, K36, K37, K38 },\
+    { K40, K41, K42, K43, K44, K45, K46, XXX, XXX },\
+    { XXX, K51, K52, K53, K54, K55, K56, XXX, XXX },\
+    { K60, K61, K62, K63, K64, K65, K66, K67, K68 },\
+    { XXX, K71, K72, K73, K74, K75, K76, K77, K78 },\
+    { K80, K81, K82, K83, XXX, XXX, K86, K87, K88 } \
+}
+
+#define LAYOUT_ansi( \
+    K00, K10, K01, K11, K02, K12, K03, K13, K04, K14, K05, K15, K06,   K16,    K17, K08, K18, \
+    K20,      K21, K31, K22, K32, K23, K33, K24, K34, K25, K35, K26, K36, K27, K37, K28, K38, \
+    K40,      K41, K51, K42, K52, K43, K53, K44, K54, K45, K55, K46,      K56,                     \
+    K60, K61, K71, K62, K72, K63, K73, K64, K74, K65, K75,               K66,       K68,     \
+    K80, K81, K82,                K83,                K85,   K76,  K86,   K87, K77, K88, K78  \
+) \
+{ \
+    { K00, K01, K02, K03, K04, K05, K06, XXX, K08 },\
+    { K10, K11, K12, K13, K14, K15, K16, K17, K18 },\
+    { K20, K21, K22, K23, K24, K25, K26, K27, K28 },\
+    { XXX, K31, K32, K33, K34, K35, K36, K37, K38 },\
+    { K40, K41, K42, K43, K44, K45, K46, XXX, XXX },\
+    { XXX, K51, K52, K53, K54, K55, K56, XXX, XXX },\
+    { K60, K61, K62, K63, K64, K65, K66, XXX, K68 },\
+    { XXX, K71, K72, K73, K74, K75, K76, K77, K78 },\
+    { K80, K81, K82, K83, XXX, K85, K86, K87, K88 } \
+}
+
diff --git a/keyboards/absinthe/config.h b/keyboards/absinthe/config.h
new file mode 100644
index 000000000..939b3d065
--- /dev/null
+++ b/keyboards/absinthe/config.h
@@ -0,0 +1,102 @@
+/*
+Copyright 2020 cfbender
+
+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 0xB00B
+#define PRODUCT_ID 0xFEED
+#define DEVICE_VER 0x0001
+#define MANUFACTURER cfbender
+#define PRODUCT absinthe
+#define DESCRIPTION An F-row-less TKL
+
+/* key matrix size */
+#define MATRIX_ROWS 9
+#define MATRIX_COLS 9
+
+/*
+ * 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 { D2, D1, B6, D4, C6, D7, E6, B4, B5 }
+#define MATRIX_COL_PINS { F4, F5, F6, F7, B1, B3, B2, D3, D0 }
+#define UNUSED_PINS
+
+#define ENCODERS_PAD_A { D5 }
+#define ENCODERS_PAD_B { B7 }
+
+#define ENCODER_DIRECTION_FLIP
+
+/* 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 B0
+#ifdef RGB_DI_PIN
+  #define RGBLED_NUM 32
+  #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
diff --git a/keyboards/absinthe/info.json b/keyboards/absinthe/info.json
new file mode 100644
index 000000000..290664106
--- /dev/null
+++ b/keyboards/absinthe/info.json
@@ -0,0 +1,150 @@
+{
+    "keyboard_name": "absinthe",
+    "url": "https://github.com/cfbender/keyboards/tree/master/absinthe",
+    "maintainer": "cfbender",
+    "width": 18.25,
+    "height": 5,
+    "layouts": {
+        "LAYOUT_default": {
+            "layout": [
+                {"label":"Esc", "x":0, "y":0},
+                {"label":"!", "x":1, "y":0},
+                {"label":"@", "x":2, "y":0},
+                {"label":"#", "x":3, "y":0}, {"label":"$", "x":4, "y":0},
+                {"label":"%", "x":5, "y":0}, {"label":"^", "x":6, "y":0},
+                {"label":"&", "x":7, "y":0}, {"label":"*", "x":8, "y":0},
+                {"label":"(", "x":9, "y":0}, {"label":")", "x":10, "y":0},
+                {"label":"_", "x":11, "y":0}, {"label":"+", "x":12, "y":0},
+                {"label":"|", "x":13, "y":0}, {"label":"~", "x":14, "y":0},
+                {"label":"Insert", "x":15.25, "y":0},
+                {"label":"Home", "x":16.25, "y":0},
+                {"label":"PgUp", "x":17.25, "y":0},
+                {"label":"Tab", "x":0, "y":1, "w":1.5},
+                {"label":"Q", "x":1.5, "y":1},
+                {"label":"W", "x":2.5, "y":1},
+                {"label":"E", "x":3.5, "y":1},
+                {"label":"R", "x":4.5, "y":1},
+                {"label":"T", "x":5.5, "y":1},
+                {"label":"Y", "x":6.5, "y":1},
+                {"label":"U", "x":7.5, "y":1},
+                {"label":"I", "x":8.5, "y":1},
+                {"label":"O", "x":9.5, "y":1},
+                {"label":"P", "x":10.5, "y":1},
+                {"label":"{", "x":11.5, "y":1},
+                {"label":"}", "x":12.5, "y":1},
+                {"label":"Backspace", "x":13.5, "y":1, "w":1.5},
+                {"label":"Delete", "x":15.25, "y":1},
+                {"label":"End", "x":16.25, "y":1},
+                {"label":"PgDn", "x":17.25, "y":1},
+                {"label":"Caps Lock", "x":0, "y":2, "w":1.75},
+                {"label":"A", "x":1.75, "y":2},
+                {"label":"S", "x":2.75, "y":2},
+                {"label":"D", "x":3.75, "y":2},
+                {"label":"F", "x":4.75, "y":2},
+                {"label":"G", "x":5.75, "y":2},
+                {"label":"H", "x":6.75, "y":2},
+                {"label":"J", "x":7.75, "y":2},
+                {"label":"K", "x":8.75, "y":2},
+                {"label":"L", "x":9.75, "y":2},
+                {"label":":", "x":10.75, "y":2},
+                {"label":"\"", "x":11.75, "y":2},
+                {"label":"Enter", "x":12.75, "y":2, "w":2.25},
+                {"label":"Shift", "x":0, "y":3, "w":2.25},
+                {"label":"Z", "x":2.25, "y":3},
+                {"label":"X", "x":3.25, "y":3},
+                {"label":"C", "x":4.25, "y":3},
+                {"label":"V", "x":5.25, "y":3},
+                {"label":"B", "x":6.25, "y":3},
+                {"label":"N", "x":7.25, "y":3},
+                {"label":"M", "x":8.25, "y":3},
+                {"label":"<", "x":9.25, "y":3},
+                {"label":">", "x":10.25, "y":3},
+                {"label":"?", "x":11.25, "y":3},
+                {"label":"Shift", "x":12.25, "y":3, "w":1.75},
+                {"label":"MO(1)", "x":14, "y":3},
+                {"label":"\u2191", "x":16.25, "y":3},
+                {"label":"Ctrl", "x":0, "y":4, "w":1.5},
+                {"label":"Win", "x":1.5, "y":4},
+                {"label":"Alt", "x":2.5, "y":4, "w":1.5},
+                {"x":4, "y":4, "w":7},
+                {"label":"Alt", "x":11, "y":4, "w":1.5},
+                {"label":"Win", "x":12.5, "y":4},
+                {"label":"Ctrl", "x":13.5, "y":4, "w":1.5},
+                {"label":"\u2190", "x":15.25, "y":4},
+                {"label":"\u2193", "x":16.25, "y":4}, {"label":"\u2192", "x":17.25, "y":4}]
+        },
+        "LAYOUT_ansi": {
+            "layout": [{"label":"Esc", "x":0, "y":0},
+                {"label":"!", "x":1, "y":0},
+                {"label":"@", "x":2, "y":0},
+                {"label":"#", "x":3, "y":0},
+                {"label":"$", "x":4, "y":0},
+                {"label":"%", "x":5, "y":0},
+                {"label":"^", "x":6, "y":0},
+                {"label":"&", "x":7, "y":0},
+                {"label":"*", "x":8, "y":0},
+                {"label":"(", "x":9, "y":0},
+                {"label":")", "x":10, "y":0},
+                {"label":"_", "x":11, "y":0},
+                {"label":"+", "x":12, "y":0},
+                {"label":"Backspace", "x":13, "y":0, "w":2},
+                {"label":"Insert", "x":15.25, "y":0},
+                {"label":"Home", "x":16.25, "y":0},
+                {"label":"PgUp", "x":17.25, "y":0},
+                {"label":"Tab", "x":0, "y":1, "w":1.5},
+                {"label":"Q", "x":1.5, "y":1},
+                {"label":"W", "x":2.5, "y":1},
+                {"label":"E", "x":3.5, "y":1},
+                {"label":"R", "x":4.5, "y":1},
+                {"label":"T", "x":5.5, "y":1},
+                {"label":"Y", "x":6.5, "y":1},
+                {"label":"U", "x":7.5, "y":1},
+                {"label":"I", "x":8.5, "y":1},
+                {"label":"O", "x":9.5, "y":1},
+                {"label":"P", "x":10.5, "y":1},
+                {"label":"{", "x":11.5, "y":1},
+                {"label":"}", "x":12.5, "y":1},
+                {"label":"|", "x":13.5, "y":1, "w":1.5},
+                {"label":"Delete", "x":15.25, "y":1},
+                {"label":"End", "x":16.25, "y":1},
+                {"label":"PgDn", "x":17.25, "y":1},
+                {"label":"Caps Lock", "x":0, "y":2, "w":1.75},
+                {"label":"A", "x":1.75, "y":2},
+                {"label":"S", "x":2.75, "y":2},
+                {"label":"D", "x":3.75, "y":2},
+                {"label":"F", "x":4.75, "y":2},
+                {"label":"G", "x":5.75, "y":2},
+                {"label":"H", "x":6.75, "y":2},
+                {"label":"J", "x":7.75, "y":2},
+                {"label":"K", "x":8.75, "y":2},
+                {"label":"L", "x":9.75, "y":2},
+                {"label":":", "x":10.75, "y":2},
+                {"label":"\"", "x":11.75, "y":2},
+                {"label":"Enter", "x":12.75, "y":2, "w":2.25},
+                {"label":"Shift", "x":0, "y":3, "w":2.25},
+                {"label":"Z", "x":2.25, "y":3},
+                {"label":"X", "x":3.25, "y":3},
+                {"label":"C", "x":4.25, "y":3},
+                {"label":"V", "x":5.25, "y":3},
+                {"label":"B", "x":6.25, "y":3},
+                {"label":"N", "x":7.25, "y":3},
+                {"label":"M", "x":8.25, "y":3},
+                {"label":"<", "x":9.25, "y":3},
+                {"label":">", "x":10.25, "y":3},
+                {"label":"?", "x":11.25, "y":3},
+                {"label":"Shift", "x":12.25, "y":3, "w":2.75},
+                {"label":"\u2191", "x":16.25, "y":3},
+                {"label":"Ctrl", "x":0, "y":4, "w":1.25},
+                {"label":"Win", "x":1.25, "y":4, "w":1.25},
+                {"label":"Alt", "x":2.5, "y":4, "w":1.25},
+                {"x":3.75, "y":4, "w":6.25},
+                {"label":"Alt", "x":10, "y":4, "w":1.25},
+                {"label":"Win", "x":11.25, "y":4, "w":1.25},
+                {"label":"Menu", "x":12.5, "y":4, "w":1.25},
+                {"label":"Ctrl", "x":13.75, "y":4, "w":1.25},
+                {"label":"\u2190", "x":15.25, "y":4},
+                {"label":"\u2193", "x":16.25, "y":4},
+                {"label":"\u2192", "x":17.25, "y":4}]
+        }
+    }
+}
diff --git a/keyboards/absinthe/keymaps/ansi/config.h b/keyboards/absinthe/keymaps/ansi/config.h
new file mode 100644
index 000000000..102e290a4
--- /dev/null
+++ b/keyboards/absinthe/keymaps/ansi/config.h
@@ -0,0 +1,19 @@
+/* Copyright 2020 cfbender
+ *
+ * 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
+
+// place overrides here
diff --git a/keyboards/absinthe/keymaps/ansi/keymap.c b/keyboards/absinthe/keymaps/ansi/keymap.c
new file mode 100644
index 000000000..2177f1814
--- /dev/null
+++ b/keyboards/absinthe/keymaps/ansi/keymap.c
@@ -0,0 +1,32 @@
+/* Copyright 2020 cfbender
+ *
+ * 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
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [0] = LAYOUT_ansi(
+      KC_ESC,  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_INS, KC_HOME, KC_PGUP,
+      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_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_LSFT,          KC_Z,    KC_X,    KC_C,   KC_V,   KC_B,   KC_N,   KC_M,   KC_COMM, KC_DOT,  KC_SLSH,  KC_RSFT,                    KC_UP,
+      KC_LCTL, KC_LGUI, KC_LALT,                          KC_SPC,                 KC_RALT, KC_RGUI, MO(1),  KC_RCTL,            KC_LEFT, KC_DOWN, KC_RIGHT),
+
+  [1] = LAYOUT_ansi(
+      KC_TRNS, 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_TRNS,       KC_PSCR,  KC_SLCK, KC_PAUS,
+      KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, RESET,  KC_TRNS,KC_TRNS,KC_TRNS,KC_TRNS,KC_TRNS, KC_TRNS, KC_TRNS,  KC_TRNS, KC_TRNS,    KC_TRNS,  KC_TRNS, KC_TRNS,
+      KC_TRNS, RGB_TOG, RGB_RMOD, RGB_MOD, RGB_HUD,RGB_HUI,RGB_SAD,RGB_SAI,RGB_VAD,RGB_VAI, KC_TRNS, KC_TRNS,  KC_TRNS,
+      KC_TRNS,          KC_TRNS, KC_TRNS, KC_TRNS,KC_TRNS,KC_TRNS,KC_TRNS,KC_TRNS,KC_TRNS, KC_TRNS, KC_TRNS,  KC_TRNS,                    KC_VOLU,
+      KC_TRNS, KC_TRNS, KC_TRNS,                          KC_TRNS,                KC_TRNS, KC_TRNS, KC_TRNS,  KC_TRNS,            KC_TRNS, KC_VOLD, KC_TRNS)
+};
diff --git a/keyboards/absinthe/keymaps/ansi/readme.md b/keyboards/absinthe/keymaps/ansi/readme.md
new file mode 100644
index 000000000..e88d0cf9d
--- /dev/null
+++ b/keyboards/absinthe/keymaps/ansi/readme.md
@@ -0,0 +1,3 @@
+# The all ANSI keymap for absinthe
+
+![default absinthe keymap](https://i.imgur.com/td0vfz0.png)
diff --git a/keyboards/absinthe/keymaps/default/config.h b/keyboards/absinthe/keymaps/default/config.h
new file mode 100644
index 000000000..102e290a4
--- /dev/null
+++ b/keyboards/absinthe/keymaps/default/config.h
@@ -0,0 +1,19 @@
+/* Copyright 2020 cfbender
+ *
+ * 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
+
+// place overrides here
diff --git a/keyboards/absinthe/keymaps/default/keymap.c b/keyboards/absinthe/keymaps/default/keymap.c
new file mode 100644
index 000000000..d6c4549c4
--- /dev/null
+++ b/keyboards/absinthe/keymaps/default/keymap.c
@@ -0,0 +1,42 @@
+/* Copyright 2020 cfbender
+ *
+ * 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
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [0] = LAYOUT_default(
+      KC_ESC,  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_BSLS, KC_GRV,  KC_INS, KC_HOME, KC_PGUP,
+      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_BSPC,  KC_DEL,   KC_END,  KC_PGDN,
+      KC_LCTL, 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_LSFT,          KC_Z,    KC_X,    KC_C,   KC_V,   KC_B,   KC_N,   KC_M,   KC_COMM, KC_DOT,  KC_SLSH,  KC_RSFT, MO(1),                    KC_UP,
+      KC_LCTL, KC_LGUI, KC_LALT,                          KC_SPC,                           KC_RALT, KC_RGUI,  KC_RCTL,                 KC_LEFT, KC_DOWN, KC_RIGHT),
+
+  [1] = LAYOUT_default(
+      KC_TRNS, 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_TRNS, KC_TRNS, KC_PSCR,  KC_SLCK, KC_PAUS,
+      KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, RESET,  KC_TRNS,KC_TRNS,KC_TRNS,KC_TRNS,KC_TRNS, KC_TRNS, KC_TRNS,  KC_TRNS, KC_TRNS,    KC_TRNS,  KC_TRNS, KC_TRNS,
+      KC_TRNS, RGB_TOG, RGB_RMOD, RGB_MOD, RGB_HUD,RGB_HUI,RGB_SAD,RGB_SAI,RGB_VAD,RGB_VAI, KC_TRNS, KC_TRNS,  KC_TRNS,
+      KC_TRNS,          KC_TRNS, KC_TRNS, KC_TRNS,KC_TRNS,KC_TRNS,KC_TRNS,KC_TRNS,KC_TRNS, KC_TRNS, KC_TRNS,  KC_TRNS, KC_TRNS,                    KC_VOLU,
+      KC_TRNS, KC_TRNS, KC_TRNS,                          KC_TRNS,                                  KC_TRNS, KC_TRNS,  KC_TRNS,            KC_TRNS, KC_VOLD, KC_TRNS)
+};
+
+void encoder_update_user(uint8_t index, bool clockwise) {
+    if (index == 0) { /* First encoder */
+        if (clockwise) {
+            tap_code(KC_VOLU);
+        } else {
+            tap_code(KC_VOLD);
+        }
+    }
+}
diff --git a/keyboards/absinthe/keymaps/default/readme.md b/keyboards/absinthe/keymaps/default/readme.md
new file mode 100644
index 000000000..f9ec78d7b
--- /dev/null
+++ b/keyboards/absinthe/keymaps/default/readme.md
@@ -0,0 +1,6 @@
+# The default keymap for absinthe
+
+
+Tsangan HHKB style with split backspace and split right shift.
+
+![default absinthe keymap](https://i.imgur.com/9Xxx6Rd.png)
diff --git a/keyboards/absinthe/readme.md b/keyboards/absinthe/readme.md
new file mode 100644
index 000000000..f99d3649f
--- /dev/null
+++ b/keyboards/absinthe/readme.md
@@ -0,0 +1,15 @@
+# absinthe
+
+![absinthe](https://i.imgur.com/fK215Tx.jpg)
+
+A budget-friendly F-rowless TKL with a rotary encoder
+
+* Keyboard Maintainer: [cfbender](https://cfbender.design)
+* Hardware Supported: Absinthe PCB, Elite-C (for rotary encoder support - alternatively you can use a Pro Micro without an encoder)
+* Hardware Availability: [GitHub](https://github.com/cfbender/keyboards/tree/master/absinthe)
+
+Make example for this keyboard (after setting up your build environment):
+
+    make absinthe: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/absinthe/rules.mk b/keyboards/absinthe/rules.mk
new file mode 100644
index 000000000..f0b8037c9
--- /dev/null
+++ b/keyboards/absinthe/rules.mk
@@ -0,0 +1,45 @@
+# 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 = atmel-dfu
+
+# If you don't know the bootloader type, then you can specify the
+# Boot Section Size in *bytes* by uncommenting out the OPT_DEFS line
+# Otherwise, delete this section
+#   Teensy halfKay      512
+#   Teensy++ halfKay    1024
+#   Atmel DFU loader    4096
+#   LUFA bootloader     4096
+#   USBaspLoader        2048
+# OPT_DEFS += -DBOOTLOADER_SIZE=4096
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = full     # Virtual DIP switch configuration
+MOUSEKEY_ENABLE = no        # 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
+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
+ENCODER_ENABLE = yes
+RGBLIGHT_ENABLE = yes
+# EXTRAFLAGS += -flto