Merge branch 'master' of https://github.com/qmk/qmk_firmware

52 files changed, 1528 insertions, 1273 deletions

diff --git a/keyboards/levinson/config.h b/keyboards/levinson/config.h
index 591c656a2..ca0c79e55 100644
--- a/keyboards/levinson/config.h
+++ b/keyboards/levinson/config.h
@@ -1,6 +1,7 @@
 /*
 Copyright 2012 Jun Wako <wakojun@gmail.com>
 Copyright 2015 Jack Humbert
+Copyright 2018 Danny Nguyen <danny@keeb.io>
 
 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
@@ -21,11 +22,4 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #include "config_common.h"
 
-#ifdef SUBPROJECT_rev1
-    #include "rev1/config.h"
-#endif
-#ifdef SUBPROJECT_rev2
-    #include "rev2/config.h"
-#endif
-
 #endif
diff --git a/keyboards/levinson/i2c.c b/keyboards/levinson/i2c.c
deleted file mode 100644
index 084c890c4..000000000
--- a/keyboards/levinson/i2c.c
+++ /dev/null
@@ -1,162 +0,0 @@
-#include <util/twi.h>
-#include <avr/io.h>
-#include <stdlib.h>
-#include <avr/interrupt.h>
-#include <util/twi.h>
-#include <stdbool.h>
-#include "i2c.h"
-
-#ifdef USE_I2C
-
-// Limits the amount of we wait for any one i2c transaction.
-// Since were running SCL line 100kHz (=> 10μs/bit), and each transactions is
-// 9 bits, a single transaction will take around 90μs to complete.
-//
-// (F_CPU/SCL_CLOCK)  =>  # of μC cycles to transfer a bit
-// poll loop takes at least 8 clock cycles to execute
-#define I2C_LOOP_TIMEOUT (9+1)*(F_CPU/SCL_CLOCK)/8
-
-#define BUFFER_POS_INC() (slave_buffer_pos = (slave_buffer_pos+1)%SLAVE_BUFFER_SIZE)
-
-volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE];
-
-static volatile uint8_t slave_buffer_pos;
-static volatile bool slave_has_register_set = false;
-
-// Wait for an i2c operation to finish
-inline static
-void i2c_delay(void) {
-  uint16_t lim = 0;
-  while(!(TWCR & (1<<TWINT)) && lim < I2C_LOOP_TIMEOUT)
-    lim++;
-
-  // easier way, but will wait slightly longer
-  // _delay_us(100);
-}
-
-// Setup twi to run at 100kHz
-void i2c_master_init(void) {
-  // no prescaler
-  TWSR = 0;
-  // Set TWI clock frequency to SCL_CLOCK. Need TWBR>10.
-  // Check datasheets for more info.
-  TWBR = ((F_CPU/SCL_CLOCK)-16)/2;
-}
-
-// Start a transaction with the given i2c slave address. The direction of the
-// transfer is set with I2C_READ and I2C_WRITE.
-// returns: 0 => success
-//          1 => error
-uint8_t i2c_master_start(uint8_t address) {
-  TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTA);
-
-  i2c_delay();
-
-  // check that we started successfully
-  if ( (TW_STATUS != TW_START) && (TW_STATUS != TW_REP_START))
-    return 1;
-
-  TWDR = address;
-  TWCR = (1<<TWINT) | (1<<TWEN);
-
-  i2c_delay();
-
-  if ( (TW_STATUS != TW_MT_SLA_ACK) && (TW_STATUS != TW_MR_SLA_ACK) )
-    return 1; // slave did not acknowledge
-  else
-    return 0; // success
-}
-
-
-// Finish the i2c transaction.
-void i2c_master_stop(void) {
-  TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO);
-
-  uint16_t lim = 0;
-  while(!(TWCR & (1<<TWSTO)) && lim < I2C_LOOP_TIMEOUT)
-    lim++;
-}
-
-// Write one byte to the i2c slave.
-// returns 0 => slave ACK
-//         1 => slave NACK
-uint8_t i2c_master_write(uint8_t data) {
-  TWDR = data;
-  TWCR = (1<<TWINT) | (1<<TWEN);
-
-  i2c_delay();
-
-  // check if the slave acknowledged us
-  return (TW_STATUS == TW_MT_DATA_ACK) ? 0 : 1;
-}
-
-// Read one byte from the i2c slave. If ack=1 the slave is acknowledged,
-// if ack=0 the acknowledge bit is not set.
-// returns: byte read from i2c device
-uint8_t i2c_master_read(int ack) {
-  TWCR = (1<<TWINT) | (1<<TWEN) | (ack<<TWEA);
-
-  i2c_delay();
-  return TWDR;
-}
-
-void i2c_reset_state(void) {
-  TWCR = 0;
-}
-
-void i2c_slave_init(uint8_t address) {
-  TWAR = address << 0; // slave i2c address
-  // TWEN  - twi enable
-  // TWEA  - enable address acknowledgement
-  // TWINT - twi interrupt flag
-  // TWIE  - enable the twi interrupt
-  TWCR = (1<<TWIE) | (1<<TWEA) | (1<<TWINT) | (1<<TWEN);
-}
-
-ISR(TWI_vect);
-
-ISR(TWI_vect) {
-  uint8_t ack = 1;
-  switch(TW_STATUS) {
-    case TW_SR_SLA_ACK:
-      // this device has been addressed as a slave receiver
-      slave_has_register_set = false;
-      break;
-
-    case TW_SR_DATA_ACK:
-      // this device has received data as a slave receiver
-      // The first byte that we receive in this transaction sets the location
-      // of the read/write location of the slaves memory that it exposes over
-      // i2c.  After that, bytes will be written at slave_buffer_pos, incrementing
-      // slave_buffer_pos after each write.
-      if(!slave_has_register_set) {
-        slave_buffer_pos = TWDR;
-        // don't acknowledge the master if this memory loctaion is out of bounds
-        if ( slave_buffer_pos >= SLAVE_BUFFER_SIZE ) {
-          ack = 0;
-          slave_buffer_pos = 0;
-        }
-        slave_has_register_set = true;
-      } else {
-        i2c_slave_buffer[slave_buffer_pos] = TWDR;
-        BUFFER_POS_INC();
-      }
-      break;
-
-    case TW_ST_SLA_ACK:
-    case TW_ST_DATA_ACK:
-      // master has addressed this device as a slave transmitter and is
-      // requesting data.
-      TWDR = i2c_slave_buffer[slave_buffer_pos];
-      BUFFER_POS_INC();
-      break;
-
-    case TW_BUS_ERROR: // something went wrong, reset twi state
-      TWCR = 0;
-    default:
-      break;
-  }
-  // Reset everything, so we are ready for the next TWI interrupt
-  TWCR |= (1<<TWIE) | (1<<TWINT) | (ack<<TWEA) | (1<<TWEN);
-}
-#endif
diff --git a/keyboards/levinson/i2c.h b/keyboards/levinson/i2c.h
deleted file mode 100644
index c15b6bc50..000000000
--- a/keyboards/levinson/i2c.h
+++ /dev/null
@@ -1,49 +0,0 @@
-#ifndef I2C_H
-#define I2C_H
-
-#include <stdint.h>
-
-#ifndef F_CPU
-#define F_CPU 16000000UL
-#endif
-
-#define I2C_READ 1
-#define I2C_WRITE 0
-
-#define I2C_ACK 1
-#define I2C_NACK 0
-
-#define SLAVE_BUFFER_SIZE 0x10
-
-// i2c SCL clock frequency
-#define SCL_CLOCK  400000L
-
-extern volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE];
-
-void i2c_master_init(void);
-uint8_t i2c_master_start(uint8_t address);
-void i2c_master_stop(void);
-uint8_t i2c_master_write(uint8_t data);
-uint8_t i2c_master_read(int);
-void i2c_reset_state(void);
-void i2c_slave_init(uint8_t address);
-
-
-static inline unsigned char i2c_start_read(unsigned char addr) {
-  return i2c_master_start((addr << 1) | I2C_READ);
-}
-
-static inline unsigned char i2c_start_write(unsigned char addr) {
-  return i2c_master_start((addr << 1) | I2C_WRITE);
-}
-
-// from SSD1306 scrips
-extern unsigned char i2c_rep_start(unsigned char addr);
-extern void i2c_start_wait(unsigned char addr);
-extern unsigned char i2c_readAck(void);
-extern unsigned char i2c_readNak(void);
-extern unsigned char i2c_read(unsigned char ack);
-
-#define i2c_read(ack)  (ack) ? i2c_readAck() : i2c_readNak();
-
-#endif
diff --git a/keyboards/levinson/info.json b/keyboards/levinson/info.json
index 4305135a1..2fb8fa9e3 100644
--- a/keyboards/levinson/info.json
+++ b/keyboards/levinson/info.json
@@ -1,7 +1,7 @@
 {
   "keyboard_name": "Levinson",
-  "url": "",
-  "maintainer": "qmk",
+  "url": "https://keeb.io",
+  "maintainer": "Keebio",
   "width": 13,
   "height": 4,
   "layouts": {
diff --git a/keyboards/levinson/keymaps/atreus/config.h b/keyboards/levinson/keymaps/atreus/config.h
new file mode 100644
index 000000000..a82c15238
--- /dev/null
+++ b/keyboards/levinson/keymaps/atreus/config.h
@@ -0,0 +1,22 @@
+/*
+This is the c configuration file for the keymap
+
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2015 Jack Humbert
+
+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 MASTER_LEFT
diff --git a/keyboards/levinson/keymaps/atreus/keymap.c b/keyboards/levinson/keymaps/atreus/keymap.c
new file mode 100644
index 000000000..61ad04ef7
--- /dev/null
+++ b/keyboards/levinson/keymaps/atreus/keymap.c
@@ -0,0 +1,41 @@
+#include QMK_KEYBOARD_H
+
+#define _QW 0
+#define _RS 1
+#define _LW 2
+
+/*
+ *  q       w      e     r    t        ||       y     u     i     o    p
+ *  a       s      d     f    g        ||       h     j     k     l    ;
+ *  z       x      c     v    b        ||       n     m     ,     .    /
+ * esc     tab    gui  shift bksp ctrl || alt space raise   -     '  enter
+ */
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+[_QW] = LAYOUT_ortho_4x12( /* Qwerty */
+	KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_NO,   KC_NO,   KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,
+	KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_NO,   KC_NO,   KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN ,
+	KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_NO,   KC_NO,   KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH ,
+	KC_ESC, KC_TAB, KC_LGUI,  KC_LSFT, KC_BSPC,  KC_LCTL, KC_LALT, KC_SPC,  MO(_RS), KC_MINS, KC_QUOT, KC_ENT  ),
+/*
+ *  !       @     up     {    }        ||     pgup    7     8     9    *
+ *  #     left   down  right  $        ||     pgdn    4     5     6    +
+ *  [       ]      (     )    &        ||       `     1     2     3    \
+ * lower  insert super shift bksp ctrl || alt space   fn    .     0    =
+ */
+[_RS] = LAYOUT_ortho_4x12( /* [> RAISE <] */
+	KC_EXLM, KC_AT,   KC_UP,   KC_LCBR, KC_RCBR, KC_NO,   KC_NO,   KC_PGUP, KC_7,    KC_8,   KC_9, KC_ASTR ,
+	KC_HASH, KC_LEFT, KC_DOWN, KC_RGHT, KC_DLR,  KC_NO,   KC_NO,   KC_PGDN, KC_4,    KC_5,   KC_6, KC_PLUS ,
+	KC_LBRC, KC_RBRC, KC_LPRN, KC_RPRN, KC_AMPR, KC_NO,   KC_NO,   KC_GRV,  KC_1,    KC_2,   KC_3, KC_BSLS ,
+	TG(_LW), KC_INS,  KC_LGUI, KC_LSFT, KC_BSPC, KC_LCTL, KC_LALT, KC_SPC,  KC_TRNS, KC_DOT, KC_0, KC_EQL  ),
+/*
+ * insert home   up  end   pgup       ||      up     F7    F8    F9   F10
+ *  del   left  down right pgdn       ||     down    F4    F5    F6   F11
+ *       volup             reset      ||             F1    F2    F3   F12
+ *       voldn  super shift bksp ctrl || alt space   L0  prtsc scroll pause
+ */
+[_LW] = LAYOUT_ortho_4x12( /* [> LOWER <] */
+	KC_INS,  KC_HOME, KC_UP,   KC_END,  KC_PGUP, KC_NO,   KC_NO,   KC_UP,   KC_F7,   KC_F8,   KC_F9,   KC_F10  ,
+	KC_DELT, KC_LEFT, KC_DOWN, KC_RGHT, KC_DOWN, KC_NO,   KC_NO,   KC_DOWN, KC_F4,   KC_F5,   KC_F6,   KC_F11  ,
+	KC_NO,   KC_VOLU, KC_NO,   KC_NO,   RESET,   KC_NO,   KC_NO,   KC_NO,   KC_F1,   KC_F2,   KC_F3,   KC_F12  ,
+	KC_NO,   KC_VOLD, KC_LGUI, KC_LSFT, KC_BSPC, KC_LCTL, KC_LALT, KC_SPC,  TO(_QW), KC_PSCR, KC_SLCK, KC_PAUS )
+};
diff --git a/keyboards/levinson/keymaps/atreus/readme.md b/keyboards/levinson/keymaps/atreus/readme.md
new file mode 100644
index 000000000..0b548ace1
--- /dev/null
+++ b/keyboards/levinson/keymaps/atreus/readme.md
@@ -0,0 +1,8 @@
+# Atreus layout port
+
+Port the default Atreus layout to the Levinson/Let's Split.
+
+The purpose is to try out the layout to get a sense of what works in it.
+
+The 'extra' keys on the Levinson are dead in this version, to make a
+more faithful emulation of the atreus layout.
diff --git a/keyboards/levinson/keymaps/bakingpy2u/config.h b/keyboards/levinson/keymaps/bakingpy2u/config.h
index 75753ac2e..1db6ea433 100644
--- a/keyboards/levinson/keymaps/bakingpy2u/config.h
+++ b/keyboards/levinson/keymaps/bakingpy2u/config.h
@@ -1,7 +1,4 @@
-#ifndef CONFIG_USER_H
-#define CONFIG_USER_H
-
-#include "config_common.h"
+#pragma once
 
 /* Use I2C or Serial, not both */
 
@@ -22,5 +19,3 @@
 #define RGBLIGHT_HUE_STEP 8
 #define RGBLIGHT_SAT_STEP 8
 #define RGBLIGHT_VAL_STEP 8
-
-#endif
diff --git a/keyboards/levinson/keymaps/bakingpy2u/keymap.c b/keyboards/levinson/keymaps/bakingpy2u/keymap.c
index da46d2a05..219e3468f 100644
--- a/keyboards/levinson/keymaps/bakingpy2u/keymap.c
+++ b/keyboards/levinson/keymaps/bakingpy2u/keymap.c
@@ -1,6 +1,4 @@
-#include "levinson.h"
-#include "action_layer.h"
-#include "eeconfig.h"
+#include QMK_KEYBOARD_H
 
 extern keymap_config_t keymap_config;
 
diff --git a/keyboards/levinson/keymaps/bakingpy2u/rules.mk b/keyboards/levinson/keymaps/bakingpy2u/rules.mk
index 22b6ec476..d7463419b 100644
--- a/keyboards/levinson/keymaps/bakingpy2u/rules.mk
+++ b/keyboards/levinson/keymaps/bakingpy2u/rules.mk
@@ -1,6 +1,2 @@
 RGBLIGHT_ENABLE = yes
 BACKLIGHT_ENABLE = yes
-
-ifndef QUANTUM_DIR
-	include ../../../../Makefile
-endif
diff --git a/keyboards/levinson/keymaps/default/config.h b/keyboards/levinson/keymaps/default/config.h
index 6b31e8d14..e710d6e4a 100644
--- a/keyboards/levinson/keymaps/default/config.h
+++ b/keyboards/levinson/keymaps/default/config.h
@@ -3,6 +3,7 @@ This is the c configuration file for the keymap
 
 Copyright 2012 Jun Wako <wakojun@gmail.com>
 Copyright 2015 Jack Humbert
+Copyright 2018 Danny Nguyen <danny@keeb.io>
 
 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
@@ -18,10 +19,7 @@ You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef CONFIG_USER_H
-#define CONFIG_USER_H
-
-#include "config_common.h"
+#pragma once
 
 /* Use I2C or Serial, not both */
 
@@ -33,5 +31,3 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define MASTER_LEFT
 // #define MASTER_RIGHT
 // #define EE_HANDS
-
-#endif
diff --git a/keyboards/levinson/keymaps/default/rules.mk b/keyboards/levinson/keymaps/default/rules.mk
index 457a3d01d..d7463419b 100644
--- a/keyboards/levinson/keymaps/default/rules.mk
+++ b/keyboards/levinson/keymaps/default/rules.mk
@@ -1,3 +1,2 @@
-ifndef QUANTUM_DIR
-	include ../../../../Makefile
-endif
+RGBLIGHT_ENABLE = yes
+BACKLIGHT_ENABLE = yes
diff --git a/keyboards/levinson/keymaps/drogglbecher/config.h b/keyboards/levinson/keymaps/drogglbecher/config.h
new file mode 100644
index 000000000..ef96ff00b
--- /dev/null
+++ b/keyboards/levinson/keymaps/drogglbecher/config.h
@@ -0,0 +1,17 @@
+#ifndef CONFIG_USER_H
+#define CONFIG_USER_H
+
+#include "config_common.h"
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+/* #define USE_I2C */
+
+/* Select hand configuration */
+
+#define MASTER_LEFT
+/* #define _MASTER_RIGHT */
+/* #define EE_HANDS */
+
+#endif
diff --git a/keyboards/levinson/keymaps/drogglbecher/keymap.c b/keyboards/levinson/keymaps/drogglbecher/keymap.c
new file mode 100644
index 000000000..b8d2dc594
--- /dev/null
+++ b/keyboards/levinson/keymaps/drogglbecher/keymap.c
@@ -0,0 +1,76 @@
+#include QMK_KEYBOARD_H
+
+extern keymap_config_t keymap_config;
+
+#define _FN0 0
+#define _FN1 1
+#define _FN2 2
+
+#define KC_X1 MO(_FN1)
+#define KC_X2 MO(_FN2)
+
+#define KC_LPRN LSFT(KC_9)      // (
+#define KC_RPRN LSFT(KC_0)      // )
+
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+   /* ┌──────┬──────┬──────┬──────┬──────┬──────┐ ┌──────┬──────┬──────┬──────┬──────┬──────┐
+    * │ ESC  │  q   │  w   │  e   │  r   │  t   │ │  y   │  u   │  i   │  o   │  p   │ BS   │
+    * ├──────┼──────┼──────┼──────┼──────┼──────┤ ├──────┼──────┼──────┼──────┼──────┼──────┤
+    * │ CTRL │  a   │  s   │  d   │  f   │  g   │ │  h   │  j   │  k   │  l   │ " '  │ RET  │
+    * ├──────┼──────┼──────┼──────┼──────┼──────┤ ├──────┼──────┼──────┼──────┼──────┼──────┤
+    * │ SHFT │  z   │  x   │  c   │  v   │  b   │ │  n   │  m   │ [ {  │ ] }  │ ; :  │ SHFT │
+    * ├──────┼──────┼──────┼──────┼──────┼──────┤ ├──────┼──────┼──────┼──────┼──────┼──────┤
+    * │ L1   │ ALT  │  L2  │ TAB  | SPC  │ SPC  │ │ SPC  │ SPC  │ , <  │ . >  │ - _  │ / ?  │
+    * └──────┴──────┴──────┴──────┴──────┴──────┘ └──────┴──────┴──────┴──────┴──────┴──────┘
+    */
+
+  [_FN0] = LAYOUT_ortho_4x12( \
+     KC_ESC,   KC_Q,      KC_W,       KC_E,       KC_R,       KC_T,       KC_Y,       KC_U,       KC_I,       KC_O,       KC_P,       KC_BSPC, \
+     KC_LCTL,  KC_A,      KC_S,       KC_D,       KC_F,       KC_G,       KC_H,       KC_J,       KC_K,       KC_L,       KC_QUOT,    KC_ENT, \
+     KC_LSFT,  KC_Z,      KC_X,       KC_C,       KC_V,       KC_B,       KC_N,       KC_M,       KC_LBRC,    KC_RBRC,    KC_SCLN,    KC_RSFT, \
+     KC_X1,    KC_LALT,   KC_X2,      KC_TAB,     KC_SPC,     KC_SPC,     KC_SPC,     KC_SPC,     KC_COMM,    KC_DOT,     KC_MINS,    KC_SLSH \
+  ),
+
+   /* ┌──────┬──────┬──────┬──────┬──────┬──────┐ ┌──────┬──────┬──────┬──────┬──────┬──────┐
+    * │      │  1   │  2   │  3   │  4   │  5   │ │  6   │  7   │  8   │  9   │  0   │ DEL  │
+    * ├──────┼──────┼──────┼──────┼──────┼──────┤ ├──────┼──────┼──────┼──────┼──────┼──────┤
+    * │      │  ä   │  ö   │  ü   │  ß   │      │ │ LEFT │ DOWN │  UP  │ RGT  │      │      │
+    * ├──────┼──────┼──────┼──────┼──────┼──────┤ ├──────┼──────┼──────┼──────┼──────┼──────┤
+    * │      │  Ä   │  Ö   │  Ü   │  €   │      │ │      │      │  (   │  )   │      │      │
+    * ├──────┼──────┼──────┼──────┼──────┼──────┤ ├──────┼──────┼──────┼──────┼──────┼──────┤
+    * │      |      │      │      | SPC  │ SPC  │ │ SPC  │ SPC  │      │      │      │  \ | │
+    * └──────┴──────┴──────┴──────┴──────┴──────┘ └──────┴──────┴──────┴──────┴──────┴──────┘
+    */
+
+  [_FN1] = LAYOUT_ortho_4x12( \
+    _______,    KC_1,       KC_2,       KC_3,       KC_4,       KC_5,       KC_6,       KC_7,       KC_8,       KC_9,       KC_0,       KC_DEL, \
+    _______,    UC(L'ä'),   UC(L'ö'),   UC(L'ü'),   UC(L'ß'),   _______,    KC_LEFT,    KC_DOWN,    KC_UP,      KC_RGHT,    _______,    KC_PIPE, \
+    _______,    UC(L'Ä'),   UC(L'Ö'),   UC(L'Ü'),   UC(L'€'),   _______,    _______,    _______,    KC_LPRN,    KC_RPRN,    _______,    _______, \
+    _______,    _______,    _______,    KC_TAB,     KC_SPC,     KC_SPC,     KC_SPC,     KC_SPC,     _______,    _______,    _______,    KC_BSLS \
+  ),
+
+   /* ┌──────┬──────┬──────┬──────┬──────┬──────┐ ┌──────┬──────┬──────┬──────┬──────┬──────┐
+    * │  `   │  !   │  @   │  #   │  $   │  %   │ │  ^   │  &   │  *   │  ~   │  +   │  =   │
+    * ├──────┼──────┼──────┼──────┼──────┼──────┤ ├──────┼──────┼──────┼──────┼──────┼──────┤
+    * │      │      │      │      │      │      │ │ HOME │ PGDN │ PGUP │ END  │      │      │
+    * ├──────┼──────┼──────┼──────┼──────┼──────┤ ├──────┼──────┼──────┼──────┼──────┼──────┤
+    * │  F1  │  F2  │  F3  │  F4  │  F5  │  F6  │ │  F7  │  F8  │  F9  │ F10  │ F11  │ F12  │
+    * ├──────┼──────┼──────┼──────┼──────┼──────┤ ├──────┼──────┼──────┼──────┼──────┼──────┤
+    * │      │      │      │      │ SPC  │ SPC  │ │ SPC  │ SPC  │      │ VOL+ │ VOL- │ MUTE │
+    * └──────┴──────┴──────┴──────┴──────┴──────┘ └──────┴──────┴──────┴──────┴──────┴──────┘
+    */
+
+  [_FN2] = LAYOUT_ortho_4x12( \
+     KC_GRV,    KC_EXLM,    KC_AT,      KC_HASH,    KC_DLR,     KC_PERC,    KC_CIRC,    KC_AMPR,    KC_ASTR,    KC_TILD,    KC_PLUS,    KC_PEQL, \
+     _______,   _______,    _______,    _______,    _______,    _______,    KC_HOME,    KC_PGDN,    KC_PGUP,    KC_END,     _______,    _______, \
+     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_SPC,     KC_SPC,     KC_SPC,     KC_SPC,     _______,    KC_VOLD,    KC_VOLU,    KC_MUTE \
+  )
+
+};
+
+void matrix_init_user(void) {
+    set_unicode_input_mode(UC_LNX);
+};
diff --git a/keyboards/levinson/keymaps/drogglbecher/rules.mk b/keyboards/levinson/keymaps/drogglbecher/rules.mk
new file mode 100644
index 000000000..b223b71ab
--- /dev/null
+++ b/keyboards/levinson/keymaps/drogglbecher/rules.mk
@@ -0,0 +1,10 @@
+AUTO_SHIFT_ENABLE = no
+AUTO_SHIFT_MODIFIERS = no
+RGBLIGHT_ENABLE = no
+BACKLIGHT_ENABLE = no
+UNICODE_ENABLE = yes
+DEFAULT_FOLDER = levinson/rev2
+
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif
diff --git a/keyboards/levinson/keymaps/jyh/config.h b/keyboards/levinson/keymaps/jyh/config.h
new file mode 100644
index 000000000..d3e598bd0
--- /dev/null
+++ b/keyboards/levinson/keymaps/jyh/config.h
@@ -0,0 +1,29 @@
+/*
+This is the c configuration file for the keymap
+
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2015 Jack Humbert
+
+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
+
+/* Select hand configuration */
+#define MASTER_LEFT
+
+/* Tap Dance timing */
+#define TAPPING_TERM 150
+
+/* Toggling layer requires # taps */
+#define TAPPING_TOGGLE 2
diff --git a/keyboards/levinson/keymaps/jyh/keymap.c b/keyboards/levinson/keymaps/jyh/keymap.c
new file mode 100644
index 000000000..d8cfa7e06
--- /dev/null
+++ b/keyboards/levinson/keymaps/jyh/keymap.c
@@ -0,0 +1,215 @@
+#include QMK_KEYBOARD_H
+
+extern keymap_config_t keymap_config;
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+#define _QWERTY 0
+#define _LOWER 3																/* Symbols, Media */
+#define _RAISE 4																/* Numbers, Arrows */
+#define _FUNC  5																/* Function Keys */
+#define _NUMS  6																/* Numpad */
+#define _ADJUST 16
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  LOWER,
+  RAISE,
+  ADJUST,
+};
+
+// Fillers to make layering more clear
+#define KC_ KC_TRNS
+
+// tap toggle numpad on
+#define NUMPAD TT(_NUMS)
+
+// Mod Tap Definitions
+// -------------------
+                                      //  Tap     Hold
+                                      //  ------------------
+#define CTL_ESC MT(MOD_LCTL, KC_ESC)  //  Esc     Left Control
+#define SFT_ENT MT(MOD_RSFT, KC_ENT)  //  Enter   Right Shift
+#define CTL_SPC MT(MOD_LCTL, KC_SPC)  //  Space   Left Control
+#define ALT_SPC MT(MOD_LALT, KC_SPC)  //  Space   Left Alt
+#define ALT_BSP MT(MOD_LALT, KC_BSPC) //  Bkspace Left Alt
+#define HPR_TAB MT(MOD_HYPR, KC_TAB)  //  Tab     Hyper (Super+Ctrl+Alt+Shift)
+#define HPR_GRV MT(MOD_HYPR, KC_GRV)  //  `       Hyper
+#define HPR_TIL MT(MOD_HYPR, KC_TILD) //  ~       Hyper
+#define MEH_TIL MT(MOD_MEH,  KC_GRV)  //  `       Meh (Ctrl+Alt+Shift)
+#define SFT_MIN MT(MOD_LSFT, KC_MINS) //  -       Left Shift
+#define NPD_UND LT(_NUMS,    KC_UNDS) //  _       Layer Numpad
+#define FNC_PIP LT(_FUNC,    KC_PIPE) //  |       Layer Function Keys
+
+#define CTL_DEL MT(MOD_LCTL, KC_DEL)  //  Del     Left Control
+#define CTL_QOT MT(MOD_RCTL, KC_QUOT) //  '       Right Control
+#define CTL_BSL MT(MOD_RCTL, KC_BSLS) //  \       Right Control
+#define CTL_PIP MT(MOD_RCTL, KC_PIPE) //  |       Right Control
+
+// Redefine for LAYOUT_kc
+#define KC_CTL_BSL CTL_BSL
+#define KC_CTL_PIP CTL_PIP
+#define KC_CTL_DEL CTL_DEL
+#define KC_HPR_TIL HPR_TIL
+#define KC_HPR_GRV HPR_GRV
+
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ *
+ * ,-----------------------------------------.    ,-----------------------------------------.
+ * | Tab  |  Q   |  W   |  E   |  R   |  T   |    |  Y   |  U   |  I   |  O   |  P   | Bksp |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * | Esc  |  A   |  S   |  D   |  F   |  G   |    |  H   |  J   |  K   |  L   |  ;   |  '   |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * |  -   |  Z   |  X   |  C   |  V   |  B   |    |  N   |  M   |  ,   |  .   |  /   | Enter|
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * | Numpd| Meh  | Meta | Alt  | Lower| Space|    | Space| Raise| Alt  | Meta | Hyper| Func |
+ * `-----------------------------------------'    `-----------------------------------------'
+ *
+ * with Hold (Emacs-oriented)
+ * ,-----------------------------------------.    ,-----------------------------------------.
+ * | Hyper|      |      |      |      |      |    |      |      |      |      |      |      |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * | Ctrl |      |      |      |      |      |    |      |      |      |      |      | Ctrl |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * | Shift|      |      |      |      |      |    |      |      |      |      |      | Shift|
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * |      |      |      |      |      |      |    |      |      |      |      |      |      |
+ * `-----------------------------------------'    `-----------------------------------------'
+ */
+				[_QWERTY] = LAYOUT_ortho_4x12(
+								HPR_TAB, KC_Q   , KC_W   , KC_E   , KC_R , KC_T   ,    KC_Y   , KC_U , KC_I   , KC_O   , KC_P   , KC_BSPC,
+								CTL_ESC, KC_A   , KC_S   , KC_D   , KC_F , KC_G   ,    KC_H   , KC_J , KC_K   , KC_L   , KC_SCLN, CTL_QOT,
+								SFT_MIN, KC_Z   , KC_X   , KC_C   , KC_V , KC_B   ,    KC_N   , KC_M , KC_COMM, KC_DOT , KC_SLSH, SFT_ENT,
+								NUMPAD , KC_MEH , KC_LGUI, KC_LALT, LOWER, CTL_SPC,    KC_SPC, RAISE, KC_RALT, KC_RGUI, KC_HYPR, MO(_FUNC)
+								),
+
+
+/* Raise
+ * ,-----------------------------------------.    ,-----------------------------------------.
+ * |  `   |  1   |  2   |  3   |  4   |  5   |    |  6   |  7   |  8   |  9   |  0   |      |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * |      | Left |  Up  | Down | Right|  (   |    |  )   |  -   |  =   |  [   |  ]   |  |   |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * |      |  ;   |  '   |  *   |  ,   |  {   |    |  }   |  _   |  +   |  .   |  /   |      |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * |      |      |      |      |      |      |    |      |      |      |      |      |      |
+ * `-----------------------------------------'    `-----------------------------------------'
+ */
+				[_RAISE] = LAYOUT_kc_ortho_4x12(
+								HPR_GRV, 1  , 2  , 3  , 4  , 5  ,      6  , 7  , 8  , 9  , 0  ,       ,
+               ,LEFT, UP ,DOWN,RGHT,LPRN,     RPRN,MINS, EQL,LBRC,RBRC,CTL_PIP,
+								       ,COLN,QUOT,ASTR,COMM,LCBR,     RCBR,UNDS,PLUS,    ,    ,       ,
+								       ,    ,    ,    ,    ,    ,         ,    ,    ,    ,    ,
+								),
+
+/* Lower
+ * ,-----------------------------------------.    ,-----------------------------------------.
+ * |  ~   |  !   |  @   |  #   |  $   |  %   |    |  ^   |  &   |  *   |  (   |  )   |      |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * | Del  | Vol+ | Mute | Play | PgUp |  :   |    |  '   |  -   |  =   |  [   |  ]   |  \   |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * |      | Vol- | < M  |  M > | PgDn |  ;   |    |  "   |  |   |  ,   |  .   |  /   |      |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * |      |      |      |      |      |      |    |      |      |      |      |      |      |
+ * `-----------------------------------------'    `-----------------------------------------'
+ */
+				[_LOWER] = LAYOUT_kc_ortho_4x12(
+								HPR_TIL,EXLM, AT ,HASH,DLR , PERC  ,     CIRC,AMPR,ASTR,LPRN,RPRN,       ,
+								CTL_DEL,VOLU,MUTE,MPLY,PGUP, COLN  ,     QUOT,MINS, EQL,LBRC,RBRC,CTL_BSL,
+								       ,VOLD,MPRV,MNXT,PGDN, SCLN  ,     DQUO,PIPE,COMM, DOT,SLSH,       ,
+								       ,    ,    ,    ,    ,       ,         ,    ,    ,    ,    ,
+								),
+
+				[_FUNC] = LAYOUT_kc_ortho_4x12(
+// ,----+----+----+----+----+----.    ,----+----+----+----+----+----.
+								, F1 , F2 , F3 , F4 , F5 ,      F6 , F7 , F8 , F9 , F10,    ,
+// |----+----+----+----+----+----|    |----+----+----+----+----+----|
+								, F11, F12, F13, F14, F15,      F16, F17, F18, F19, F20,    ,
+// |----+----+----+----+----+----|    |----+----+----+----+----+----|
+								, F21, F22, F23, F24, NO ,      NO , NO , NO , NO , NO ,    ,
+// |----+----+----+----+----+----|    |----+----+----+----+----+----|
+								,    ,    ,    ,    ,    ,         ,    ,    ,    ,    ,
+// `----+----+----+----+----+----'    `----+----+----+----+----+----'
+  ),
+
+				[_NUMS] = LAYOUT_kc_ortho_4x12(
+// ,----+----+----+----+----+----.    ,----+----+----+----+----+----.
+								, 1  , 2  , 3  , 4  , 5  ,      6  , 7  , 8  , 9  ,SLSH,    ,
+// |----+----+----+----+----+----|    |----+----+----+----+----+----|
+								,CAPS, INS,HOME,PGUP,LPRN,     RPRN, 4  , 5  , 6  ,ASTR,    ,
+// |----+----+----+----+----+----|    |----+----+----+----+----+----|
+								,NLCK, DEL, END,PGDN,SCLN,     COMM, 1  , 2  , 3  ,MINS,    ,
+// |----+----+----+----+----+----|    |----+----+----+----+----+----|
+								,    ,    ,    ,    ,    ,         , 0  ,DOT ,EQL ,PLUS,
+// `----+----+----+----+----+----'    `----+----+----+----+----+----'
+								),
+
+				[_ADJUST] = LAYOUT_ortho_4x12(
+// ,-------+--------+--------+--------+--------+--------.   ,-------+--------+--------+--------+--------+--------.
+		   RESET , XXXXXXX,  KC_UP , XXXXXXX, XXXXXXX, XXXXXXX,    XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, KC_DEL , \
+// |-------+--------+--------+--------+--------+--------|   |-------+--------+--------+--------+--------+--------|
+			 _______, KC_LEFT, KC_DOWN, KC_RGHT, XXXXXXX, XXXXXXX,    BL_TOGG, BL_STEP, XXXXXXX, XXXXXXX, XXXXXXX, _______, \
+// |-------+--------+--------+--------+--------+--------|   |-------+--------+--------+--------+--------+--------|
+		  _______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,    XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, _______, \
+// |-------+--------+--------+--------+--------+--------|   |-------+--------+--------+--------+--------+--------|
+		  _______, _______, _______, _______, _______, _______,    _______, _______, _______, _______, _______, _______  \
+// `-------+--------+--------+--------+--------+--------'   `-------+--------+--------+--------+--------+--------,
+		)
+
+/*
+ * ,-----------------------------------------.    ,-----------------------------------------.
+ * |      |      |      |      |      |      |    |      |      |      |      |      |      |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * |      |      |      |      |      |      |    |      |      |      |      |      |      |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * |      |      |      |      |      |      |    |      |      |      |      |      |      |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * |      |      |      |      |      |      |    |      |      |      |      |      |      |
+ * `-----------------------------------------'    `-----------------------------------------'
+ */
+};
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case QWERTY:
+      if (record->event.pressed) {
+        set_single_persistent_default_layer(_QWERTY);
+      }
+      return false;
+      break;
+    case LOWER:
+      if (record->event.pressed) {
+        layer_on(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case RAISE:
+      if (record->event.pressed) {
+        layer_on(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case ADJUST:
+      if (record->event.pressed) {
+        layer_on(_ADJUST);
+      } else {
+        layer_off(_ADJUST);
+      }
+      return false;
+      break;
+  }
+  return true;
+}
diff --git a/keyboards/levinson/keymaps/jyh/readme.md b/keyboards/levinson/keymaps/jyh/readme.md
new file mode 100644
index 000000000..e20424e51
--- /dev/null
+++ b/keyboards/levinson/keymaps/jyh/readme.md
@@ -0,0 +1,32 @@
+# jyh's levinson layout
+
+[Levinson](https://keeb.io/products/levinson-lets-split-w-led-backlight)
+built on rev2 PCBs. A split 4x12 keyboard with LED backlights.
+
+The layout is oriented towards needs for programming, Emacs, XMonad,
+and experience with 60% keyboards with no base layer arrow keys
+(Poker). It makes heavy use of modifiers and layers.
+
+## Layout features
+
+  * Extensive use of _Mod Tap_, e.g.
+     * Tap sends Esc, Hold sends Left Control
+     * Tap sends Enter, Hold sends Right Shift
+     * ... and many more
+  * Hyper and Meh keys
+  * Right modifier keys in place of arrow keys
+    * Arrows are instead available in two alternate locations:
+    * WASD arrows on _Adjust_
+    * Arrow cluster on _Raise_ (inspired by hexwire)
+  * Centered symbol/bracket cluster on _Lower/Raise_
+    * Inspired by hexwire layout
+    * Programming-oriented
+  * Spacebar sends modifier keys on hold (_this is finicky in practice. may shut off completely_)
+    * Control ~~and Alt/Meta~~ on left ~~and right~~ space, respectively
+    * Strict space available on _Function_ and _Numpad_ layers
+    * For Emacs keychords
+  * Extra dedicated layers
+    * Numpad (available with tap toggle)
+    * Function key (F01-24)
+  * Redunant keys where it is convenient to have characters together
+    on one layer
diff --git a/keyboards/levinson/keymaps/jyh/rules.mk b/keyboards/levinson/keymaps/jyh/rules.mk
new file mode 100644
index 000000000..66110cfcc
--- /dev/null
+++ b/keyboards/levinson/keymaps/jyh/rules.mk
@@ -0,0 +1 @@
+BACKLIGHT_ENABLE=yes
diff --git a/keyboards/levinson/keymaps/jyh2/config.h b/keyboards/levinson/keymaps/jyh2/config.h
new file mode 100644
index 000000000..f50674bb8
--- /dev/null
+++ b/keyboards/levinson/keymaps/jyh2/config.h
@@ -0,0 +1,33 @@
+/*
+This is the c configuration file for the keymap
+
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2015 Jack Humbert
+
+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
+
+/* Select hand configuration */
+#define MASTER_LEFT
+
+/* Tap Dance timing */
+#define TAPPING_TERM 150
+
+/* Toggling layer requires # taps */
+#define TAPPING_TOGGLE 3
+
+#define RGBLIGHT_ANIMATIONS
+#define RGBLED_NUM 12
+
diff --git a/keyboards/levinson/keymaps/jyh2/keymap.c b/keyboards/levinson/keymaps/jyh2/keymap.c
new file mode 100644
index 000000000..4b7442928
--- /dev/null
+++ b/keyboards/levinson/keymaps/jyh2/keymap.c
@@ -0,0 +1,222 @@
+#include QMK_KEYBOARD_H
+
+extern keymap_config_t keymap_config;
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+#define _QWERTY 0
+#define _LOWER 3                                                                /* Symbols, Media */
+#define _RAISE 4                                                                /* Numbers, Arrows */
+#define _FUNC  5                                                                /* Function Keys */
+#define _NUMS  6                                                                /* Numpad */
+#define _ADJUST 16
+
+/* short layer aliases */
+#define _QW _QWERTY
+#define _LW _LOWER
+#define _RS _RAISE
+#define _NM _NUMS
+#define _AD _ADJUST
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  LOWER,
+  RAISE,
+  ADJUST,
+  MKITPNK,
+  DYNAMIC_MACRO_RANGE
+};
+
+#include "dynamic_macro.h"
+
+#define DREC_1  DYN_REC_START1
+#define DREC_2  DYN_REC_START2
+#define DPLAY_1 DYN_MACRO_PLAY1
+#define DPLAY_2 DYN_MACRO_PLAY2
+#define DSTOP   DYN_REC_STOP
+
+
+// Mod Tap Definitions
+// -------------------
+                                      //  Tap     Hold
+                                      //  ------------------
+#define GUI_GRV MT(MOD_LGUI, KC_GRV)  //  `       Meta
+#define CTL_ESC MT(MOD_LCTL, KC_ESC)  //  Esc     Left Control
+#define SFT_MIN MT(MOD_LSFT, KC_MINS) //  -       Left Shift
+#define MEH_LBC MT(MOD_MEH,  KC_LBRC) //  [       Meh
+#define CTL_BSP MT(MOD_LCTL, KC_BSPC)  // Bkspce  Left Control
+#define HPR_RBC MT(MOD_HYPR, KC_RBRC) //  ]       Hyper
+#define SFT_EQL MT(MOD_RSFT, KC_EQL)  //  =       Right Shift
+#define GUI_BSL MT(MOD_RGUI, KC_BSLS) //  \       Meta
+
+#define NUM_TAB LT(_NUMS, KC_TAB)     //  Tab     Layer Numpad
+
+#define CTL_DEL MT(MOD_LCTL, KC_DEL)  //  Del     Left Control
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------.    ,-----------------------------------------.
+ * |  `   |  Q   |  W   |  E   |  R   |  T   |    |  Y   |  U   |  I   |  O   |  P   |  \   |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * | Esc  |  A   |  S   |  D   |  F   |  G   |    |  H   |  J   |  K   |  L   |  ;   |  '   |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * |  -   |  Z   |  X   |  C   |  V   |  B   |    |  N   |  M   |  ,   |  .   |  /   |  =   |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * | Tab  |  [   | Meta | Alt  | Lower| Bksp |    | Space| Raise| Alt  | Meta |  ]   | Enter|
+ * `-----------------------------------------'    `-----------------------------------------'
+ * with Hold (Emacs-oriented)
+ * ,-----------------------------------------.    ,-----------------------------------------.
+ * | Meta |      |      |      |      |      |    |      |      |      |      |      | Meta |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * | Ctrl |      |      |      |      |      |    |      |      |      |      |      |      |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * | Shift|      |      |      |      |      |    |      |      |      |      |      | Shift|
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * | Numpd| Meh  |      |      |      | Ctrl |    |      |      |      |      | Hyper|      |
+ * `-----------------------------------------'    `-----------------------------------------'
+ */
+    [_QW] = LAYOUT_ortho_4x12(
+        GUI_GRV, KC_Q   , KC_W   , KC_E   , KC_R   , KC_T   , KC_Y   , KC_U   , KC_I   , KC_O   , KC_P   , GUI_BSL,
+        CTL_ESC, KC_A   , KC_S   , KC_D   , KC_F   , KC_G   , KC_H   , KC_J   , KC_K   , KC_L   , KC_SCLN, KC_QUOT,
+        SFT_MIN, KC_Z   , KC_X   , KC_C   , KC_V   , KC_B   , KC_N   , KC_M   , KC_COMM, KC_DOT , KC_SLSH, SFT_EQL,
+        NUM_TAB, MEH_LBC, KC_LGUI, KC_LALT, LOWER  , CTL_BSP, KC_SPC , RAISE  , KC_RALT, KC_RGUI, HPR_RBC, KC_ENT
+        ),
+
+/* Raise
+ * ,-----------------------------------------.    ,-----------------------------------------.
+ * |      |  1   |  2   |  3   |  4   |  5   |    |  6   |  7   |  8   |  9   |  0   |      |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * |      | Left |  Up  | Down | Right|  ;   |    |  '   |  4   |  5   |  6   |  *   |      |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * |      |  {   |  }   |  (   |  )   |  ,   |    |  -   |  1   |  2   |  3   |  /   |  =   |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * |      |      |      |      |Adjust|      |    |      | RAISE|   .  |  0   |  +   | Enter|
+ * `-----------------------------------------'    `-----------------------------------------'
+ */
+    [_RS] = LAYOUT_ortho_4x12(
+        _______, KC_1   , KC_2   , KC_3   , KC_4   , KC_5   , KC_6   , KC_7   , KC_8   , KC_9   , KC_0   , _______,
+        _______, KC_LEFT, KC_UP  , KC_DOWN, KC_RGHT, KC_SCLN, KC_QUOT, KC_4   , KC_5   , KC_6   , KC_ASTR, _______,
+        _______, KC_LCBR, KC_RCBR, KC_LPRN, KC_RPRN, KC_COMM, KC_MINS, KC_1   , KC_2   , KC_3   , KC_SLSH, _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, KC_DOT , KC_0   , KC_PLUS, _______
+        ),
+
+/* Lower
+ * ,-----------------------------------------.    ,-----------------------------------------.
+ * |  ~   |  !   |  @   |  #   |  $   |  %   |    |  ^   |  &   |  *   |  (   |  )   |      |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * | Del  | Vol+ | Mute | Play | PgUp | Home |    |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * |      | Vol- | < M  |  M > | PgDn | End  |    |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * |      |      |      |      |LOWER |      |    |      |Adjust|      |      |      | Enter|
+ * `-----------------------------------------'    `-----------------------------------------'
+ */
+    [_LW] = LAYOUT_ortho_4x12(
+        _______, KC_EXLM, KC_AT  , KC_HASH, KC_DLR , KC_PERC,    KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, _______,
+        CTL_DEL, KC_VOLU, KC_MUTE, KC_MPLY, KC_PGUP, KC_HOME,    KC_F1  , KC_F2  , KC_F3  , KC_F4  , KC_F5  , KC_F6  ,
+        _______, KC_VOLD, KC_MPRV, KC_MNXT, KC_PGDN, KC_END ,    KC_F7  , KC_F8  , KC_F9  , KC_F10 , KC_F11 , KC_F12 ,
+        _______, _______, _______, _______, _______, _______,    _______, _______, _______, _______, _______, _______
+        ),
+
+/* Numpad
+ * ,-----------------------------------------.    ,-----------------------------------------.
+ * |      |      | PrSc | ScrLk| Pause|      |    |      |  7   |  8   |  9   |  0   | Lock |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * |      |      | Ins  | Home | PgUp |      |    |      |  4   |  5   |  6   |  /   |      |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * |      |      | Del  | End  | PgDn |      |    |      |  1   |  2   |  3   |  *   |  =   |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * |NUMPAD|      |      |      |      |      |    |      |  0   |  .   |  +   |  -   | Enter|
+ * `-----------------------------------------'    `-----------------------------------------'
+ */
+    [_NM] = LAYOUT_ortho_4x12(
+        XXXXXXX, XXXXXXX, KC_PSCR, KC_SLCK, KC_PAUS, XXXXXXX,    XXXXXXX, KC_7   , KC_8   , KC_9   , KC_0   , TO(_NM),
+        XXXXXXX, XXXXXXX, KC_INS , KC_HOME, KC_PGUP, XXXXXXX,    XXXXXXX, KC_4   , KC_5   , KC_6   , KC_SLSH, XXXXXXX,
+        XXXXXXX, XXXXXXX, KC_DEL , KC_END , KC_PGDN, XXXXXXX,    XXXXXXX, KC_1   , KC_2   , KC_3   , KC_ASTR, KC_EQL ,
+        _______, XXXXXXX, XXXXXXX, XXXXXXX, _______, _______,    _______, KC_0   , KC_DOT , KC_PLUS, KC_MINS, _______
+        ),
+
+/* Adjust
+ * ,-----------------------------------------.    ,-----------------------------------------.
+ * | Reset|      |  Up  |      |      | Rec1 |    | Rec2 | Plain| Snake|Gradnt|      | Del  |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * | Caps | Left | Down | Right|MkItPk| Play1|    | Play2| RGB  | HUE+ | SAT+ | BRI+ |      |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * |      |      |      |      |      | Stop1|    | Stop2| MODE | HUE- | SAT- | BRI- |      |
+ * |------+------+------+------+------+------|    |------+------+------+------+------+------|
+ * |      |      |      |      |      |      |    |      |      |      |      |      |      |
+ * `-----------------------------------------'    `-----------------------------------------'
+ */
+    [_ADJUST] = LAYOUT_ortho_4x12(
+        RESET  , XXXXXXX,  KC_UP , XXXXXXX, XXXXXXX, DREC_1 ,    DREC_2 , RGB_M_P, RGB_M_SN,RGB_M_G, XXXXXXX, KC_DEL ,
+        KC_CAPS, KC_LEFT, KC_DOWN, KC_RGHT, MKITPNK, DPLAY_1,    DPLAY_2, RGB_TOG, RGB_HUI, RGB_SAI, RGB_VAI, _______,
+        _______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, DSTOP  ,    DSTOP  , RGB_MOD, RGB_HUD, RGB_SAD, RGB_VAD, _______,
+        _______, _______, _______, _______, _______, _______,    _______, _______, _______, _______, _______, _______
+        )
+};
+
+void make_it_pink_blue(void) {
+    uint16_t blue_hue = 210;
+    uint16_t pink_hue = 315;
+
+    /* key is pressed */
+    uint16_t hue = rgblight_get_hue();
+    uint8_t sat = rgblight_get_sat();
+    uint8_t val = rgblight_get_val();
+
+    if (hue != blue_hue)
+        rgblight_sethsv(blue_hue, sat, val);
+    else
+        rgblight_sethsv(pink_hue, sat, val);
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+    if (!process_record_dynamic_macro(keycode, record))
+        return false;
+
+    switch (keycode) {
+      case QWERTY:
+          if (record->event.pressed) {
+              set_single_persistent_default_layer(_QWERTY);
+          }
+          return false;
+          break;
+      case LOWER:
+          if (record->event.pressed) {
+              layer_on(_LOWER);
+              update_tri_layer(_LOWER, _RAISE, _ADJUST);
+          } else {
+              layer_off(_LOWER);
+              update_tri_layer(_LOWER, _RAISE, _ADJUST);
+          }
+          return false;
+          break;
+      case RAISE:
+          if (record->event.pressed) {
+              layer_on(_RAISE);
+              update_tri_layer(_LOWER, _RAISE, _ADJUST);
+          } else {
+              layer_off(_RAISE);
+              update_tri_layer(_LOWER, _RAISE, _ADJUST);
+          }
+          return false;
+          break;
+      case ADJUST:
+          if (record->event.pressed) {
+              layer_on(_ADJUST);
+          } else {
+              layer_off(_ADJUST);
+          }
+          return false;
+          break;
+      case MKITPNK:
+          if (record->event.pressed)
+              make_it_pink_blue();
+          return false;
+          break;
+    }
+    return true;
+}
diff --git a/keyboards/levinson/keymaps/jyh2/readme.md b/keyboards/levinson/keymaps/jyh2/readme.md
new file mode 100644
index 000000000..45ca95692
--- /dev/null
+++ b/keyboards/levinson/keymaps/jyh2/readme.md
@@ -0,0 +1,32 @@
+# jyh's levinson layout
+
+[Levinson](https://keeb.io/products/levinson-lets-split-w-led-backlight)
+built on rev2 PCBs. A split 4x12 keyboard with LED backlights.
+
+The layout is oriented towards needs for programming, Emacs, XMonad,
+and experience with 60% keyboards with no base layer arrow keys
+(Poker). It makes heavy use of modifiers and layers. It is influenced
+by good ideas from the Atreus keyboard layout.
+
+## Layout features
+
+  * Extensive use of _Mod Tap_, e.g.
+     * Tap sends Esc, Hold sends Left Control
+     * Tap sends Tab, Hold activates Numpad layer
+     * Tap sends  - , Hold sends Shift
+     * ... and many more
+  * Places Tab and Enter on bottom corners, for hitting with palm
+  * Meta is available on top corners, for controlling XMonad
+  * Control on center key, for Emacs (among other things)
+  * Backspace (Control Hold) and Space on center keys
+  * All 60% keys available on base layer, except for numbers
+  * Hyper and Meh keys
+  * Right modifier keys in place of arrow keys
+    * Arrows are instead available in two alternate locations:
+    * WASD arrows on _Adjust_
+    * Arrow cluster on _Raise_ (inspired by hexwire)
+  * Numpad and Numrow on _Raise_ layer. Each is faster in some contexts
+  * Function keys on _Lower_
+  * Dynamic macros from QMK firmware on _Adjust_
+  * Redunant keys where it is convenient to have characters together
+    on one layer
diff --git a/keyboards/levinson/keymaps/jyh2/rules.mk b/keyboards/levinson/keymaps/jyh2/rules.mk
new file mode 100644
index 000000000..fbb3b49d6
--- /dev/null
+++ b/keyboards/levinson/keymaps/jyh2/rules.mk
@@ -0,0 +1,2 @@
+RGBLIGHT_ENABLE=yes
+BOOTMAGIC_ENABLE=no
diff --git a/keyboards/levinson/keymaps/losinggeneration/rules.mk b/keyboards/levinson/keymaps/losinggeneration/rules.mk
index f3e47b4c2..c8eef2cb3 100644
--- a/keyboards/levinson/keymaps/losinggeneration/rules.mk
+++ b/keyboards/levinson/keymaps/losinggeneration/rules.mk
@@ -10,7 +10,7 @@ COMMAND_ENABLE   = no    # Commands for debug and configuration
 CONSOLE_ENABLE   = no    # Console for debug(+400)
 MIDI_ENABLE      = no    # MIDI controls
 NKRO_ENABLE      = no    # Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
-RGBLIGHT_ENABLE  = yes   # Enable WS2812 RGB underlight.  Do not enable this with audio at the same time.
+RGBLIGHT_ENABLE  = yes   # Enable WS2812 RGB underlight. 
 
 ifndef QUANTUM_DIR
 	include ../../../../Makefile
diff --git a/keyboards/levinson/keymaps/mmacdougall/README.md b/keyboards/levinson/keymaps/mmacdougall/README.md
new file mode 100644
index 000000000..bae8c8a4b
--- /dev/null
+++ b/keyboards/levinson/keymaps/mmacdougall/README.md
@@ -0,0 +1,21 @@
+mmacdougall's Levinson Layout
+============================
+
+Similar to default layout, however RGB & backlight controls are mapped to adjust layer
+
+## Layouts
+
+### Adjust (Lower + Raise)
+
+```
+/* Adjust (Lower + Raise)
+ ,-----------------------------------------------------------------------------------.
+ |      | Reset|      |      |      |      |      |      |      |      |      |  Del |
+ |------+------+------+------+------+-------------+------+------+------+------+------|
+ |      |      |      |Aud on|Audoff|AGnorm|AGswap|Qwerty|Colemk|Dvorak|      |      |
+ |------+------+------+------+------+------|------+------+------+------+------+------|
+ |B Step|RGB Tg|RGB Md|Hue Up|Hue Dn|Sat Up|Sat Dn|Val Up|Val Dn|      |      |      |
+ |------+------+------+------+------+------+------+------+------+------+------+------|
+ |      |      |      |      |      |             |      |      |      |      |      |
+ `-----------------------------------------------------------------------------------' 
+```
diff --git a/keyboards/levinson/keymaps/mmacdougall/config.h b/keyboards/levinson/keymaps/mmacdougall/config.h
new file mode 100644
index 000000000..63dd5bc88
--- /dev/null
+++ b/keyboards/levinson/keymaps/mmacdougall/config.h
@@ -0,0 +1,20 @@
+#pragma once
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+// #define USE_I2C
+
+/* Select hand configuration */
+
+#define MASTER_LEFT
+// #define MASTER_RIGHT
+// #define EE_HANDS
+
+
+#undef RGBLED_NUM
+#define RGBLIGHT_ANIMATIONS
+#define RGBLED_NUM 12
+#define RGBLIGHT_HUE_STEP 8
+#define RGBLIGHT_SAT_STEP 8
+#define RGBLIGHT_VAL_STEP 8
diff --git a/keyboards/levinson/keymaps/mmacdougall/keymap.c b/keyboards/levinson/keymaps/mmacdougall/keymap.c
new file mode 100644
index 000000000..dec47a761
--- /dev/null
+++ b/keyboards/levinson/keymaps/mmacdougall/keymap.c
@@ -0,0 +1,201 @@
+#include QMK_KEYBOARD_H
+
+extern keymap_config_t keymap_config;
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+#define _QWERTY 0
+#define _COLEMAK 1
+#define _DVORAK 2
+#define _LOWER 3
+#define _RAISE 4
+#define _ADJUST 16
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  COLEMAK,
+  DVORAK,
+  LOWER,
+  RAISE,
+  ADJUST,
+};
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   ;  |  "   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt  | GUI  |Lower |Space |Space |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_QWERTY] = LAYOUT_ortho_4x12( \
+  KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC, \
+  KC_ESC,  KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT, \
+  KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_ENT , \
+  ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
+),
+
+/* Colemak
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   Q  |   W  |   F  |   P  |   G  |   J  |   L  |   U  |   Y  |   ;  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   R  |   S  |   T  |   D  |   H  |   N  |   E  |   I  |   O  |  "   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   K  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt  | GUI  |Lower |Space |Space |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_COLEMAK] = LAYOUT_ortho_4x12( \
+  KC_TAB,  KC_Q,    KC_W,    KC_F,    KC_P,    KC_G,    KC_J,    KC_L,    KC_U,    KC_Y,    KC_SCLN, KC_BSPC, \
+  KC_ESC,  KC_A,    KC_R,    KC_S,    KC_T,    KC_D,    KC_H,    KC_N,    KC_E,    KC_I,    KC_O,    KC_QUOT, \
+  KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_ENT , \
+  ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
+),
+
+/* Dvorak
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   "  |   ,  |   .  |   P  |   Y  |   F  |   G  |   C  |   R  |   L  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   O  |   E  |   U  |   I  |   D  |   H  |   T  |   N  |   S  |  /   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   ;  |   Q  |   J  |   K  |   X  |   B  |   M  |   W  |   V  |   Z  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt  | GUI  |Lower |Space |Space |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_DVORAK] = LAYOUT_ortho_4x12( \
+  KC_TAB,  KC_QUOT, KC_COMM, KC_DOT,  KC_P,    KC_Y,    KC_F,    KC_G,    KC_C,    KC_R,    KC_L,    KC_BSPC, \
+  KC_ESC,  KC_A,    KC_O,    KC_E,    KC_U,    KC_I,    KC_D,    KC_H,    KC_T,    KC_N,    KC_S,    KC_SLSH, \
+  KC_LSFT, KC_SCLN, KC_Q,    KC_J,    KC_K,    KC_X,    KC_B,    KC_M,    KC_W,    KC_V,    KC_Z,    KC_ENT , \
+  ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
+),
+
+/* Lower
+ * ,-----------------------------------------------------------------------------------.
+ * |   ~  |   !  |   @  |   #  |   $  |   %  |   ^  |   &  |   *  |   (  |   )  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   _  |   +  |     |    \  |  |   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |ISO ~ |ISO | |      |      |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_LOWER] = LAYOUT_ortho_4x12( \
+  KC_TILD, KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_BSPC, \
+  KC_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE, \
+  _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,S(KC_NUHS),S(KC_NUBS),_______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
+),
+
+/* Raise
+ * ,-----------------------------------------------------------------------------------.
+ * |   `  |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   -  |   =  |   [  |   ]  |  \   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |ISO # |ISO / |      |      |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_RAISE] = LAYOUT_ortho_4x12( \
+  KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_BSPC, \
+  KC_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_MINS, KC_EQL,  KC_LBRC, KC_RBRC, KC_BSLS, \
+  _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_NUHS, KC_NUBS, _______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
+),
+
+/* Adjust (Lower + Raise)
+ * ,-----------------------------------------------------------------------------------.
+ * |      | Reset|      |      |      |      |      |      |      |      |      |  Del |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |      |      |Aud on|Audoff|AGnorm|AGswap|Qwerty|Colemk|Dvorak|      |      |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |B Step|RGB Tg|RGB Md|Hue Up|Hue Dn|Sat Up|Sat Dn|Val Up|Val Dn|      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      |      |      |      |      |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_ADJUST] =  LAYOUT_ortho_4x12( \
+  _______, RESET,   _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_DEL, \
+  _______, _______, _______, AU_ON,   AU_OFF,  AG_NORM, AG_SWAP, QWERTY,  COLEMAK, DVORAK,  _______, _______, \
+  BL_STEP, RGB_TOG, RGB_MOD, RGB_HUD, RGB_HUI, RGB_SAD, RGB_SAI, RGB_VAD, RGB_VAI, _______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ \
+)
+
+
+};
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case QWERTY:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_qwerty);
+        #endif
+        set_single_persistent_default_layer(_QWERTY);
+      }
+      return false;
+      break;
+    case COLEMAK:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_colemak);
+        #endif
+        set_single_persistent_default_layer(_COLEMAK);
+      }
+      return false;
+      break;
+    case DVORAK:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_dvorak);
+        #endif
+        set_single_persistent_default_layer(_DVORAK);
+      }
+      return false;
+      break;
+    case LOWER:
+      if (record->event.pressed) {
+        layer_on(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case RAISE:
+      if (record->event.pressed) {
+        layer_on(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case ADJUST:
+      if (record->event.pressed) {
+        layer_on(_ADJUST);
+      } else {
+        layer_off(_ADJUST);
+      }
+      return false;
+      break;
+  }
+  return true;
+}
diff --git a/keyboards/levinson/keymaps/mmacdougall/rules.mk b/keyboards/levinson/keymaps/mmacdougall/rules.mk
new file mode 100644
index 000000000..d7463419b
--- /dev/null
+++ b/keyboards/levinson/keymaps/mmacdougall/rules.mk
@@ -0,0 +1,2 @@
+RGBLIGHT_ENABLE = yes
+BACKLIGHT_ENABLE = yes
diff --git a/keyboards/levinson/keymaps/steno/config.h b/keyboards/levinson/keymaps/steno/config.h
new file mode 100644
index 000000000..9cbc148e4
--- /dev/null
+++ b/keyboards/levinson/keymaps/steno/config.h
@@ -0,0 +1,34 @@
+/*
+Copyright 2017 Danny Nguyen <danny@hexwire.com>
+
+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
+
+/* Use I2C or Serial, not both */
+
+#define USE_I2C
+// #define USE_SERIAL
+
+
+#define FORCE_NKRO  //For Steno.
+
+/* Select hand configuration */
+
+#define MASTER_LEFT
+// #define MASTER_RIGHT
+// #define EE_HANDS
+
+
diff --git a/keyboards/levinson/keymaps/steno/keymap.c b/keyboards/levinson/keymaps/steno/keymap.c
new file mode 100644
index 000000000..cd7493467
--- /dev/null
+++ b/keyboards/levinson/keymaps/steno/keymap.c
@@ -0,0 +1,148 @@
+#include QMK_KEYBOARD_H
+#include "keymap_steno.h"
+
+extern keymap_config_t keymap_config;
+
+#define _PLOVER 0
+#define _QWERTY 1
+#define _LOWER 2
+#define _RAISE 3
+#define _ADJUST 4
+
+enum custom_keycodes 
+{
+  PLOVER = SAFE_RANGE,
+  QWERTY, 
+  LOWER,
+  RAISE,
+  ADJUST,
+  EXT_QWE,
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = 
+{
+
+  [_PLOVER] = LAYOUT(
+  //┌────────┬────────┬────────┬────────┬────────┬────────┐                          ┌────────┬────────┬────────┬────────┬────────┬────────┐
+      STN_PWR,  STN_S1, STN_TL,  STN_PL,  STN_HL, STN_ST1,                            STN_ST3, STN_FR,  STN_PR,  STN_LR,  STN_TR,  STN_DR,
+  //├────────┼────────┼────────┼────────┼────────┼────────┤                          ├────────┼────────┼────────┼────────┼────────┼────────┤
+      STN_FN,  STN_S2,  STN_KL,  STN_WL,  STN_RL,  STN_ST2,                           STN_ST4,  STN_RR,  STN_BR, STN_GR,  STN_SR,  STN_ZR,
+  //├────────┼────────┼────────┼────────┼────────┼────────┤                          ├────────┼────────┼────────┼────────┼────────┼────────┤
+     STN_N1,    STN_N2,  STN_N3,  STN_N4,  STN_N5,  STN_N6,                             STN_N7, STN_N8,  STN_N9,  STN_NA,  STN_NB,  STN_NC,
+  //├────────┼────────┼────────┼────────┼────────┼────────┼                          ┼────────┼────────┼────────┼────────┼────────┼────────┤
+     XXXXXXX,  STN_RE1,  STN_RE2, XXXXXXX, STN_A,   STN_O,                              STN_E,  STN_U, XXXXXXX, XXXXXXX, QWERTY, XXXXXXX
+  //└────────┴────────┴────────┴───┬────┴───┬────┴───┬────┴                          ┴───┬────┴───┬────┴───┬────┴────────┴────────┴────────┘
+ 
+  ),
+
+  [_QWERTY] = LAYOUT(
+  //┌────────┬────────┬────────┬────────┬────────┬────────┐                          ┌────────┬────────┬────────┬────────┬────────┬────────┐
+     KC_ESC,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,                               KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC,
+  //├────────┼────────┼────────┼────────┼────────┼────────┤                          ├────────┼────────┼────────┼────────┼────────┼────────┤
+     KC_LSFT,  KC_A,    KC_S,    KC_D,    KC_F,    KC_G,                               KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN,  KC_RSFT,
+  //├────────┼────────┼────────┼────────┼────────┼────────┤                          ├────────┼────────┼────────┼────────┼────────┼────────┤
+     KC_LGUI, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,                               KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_QUOT,
+  //├────────┼────────┼────────┼────────┼────────┼────────┼                          ┼────────┼────────┼────────┼────────┼────────┼────────┤
+     KC_LALT, KC_MINUS, KC_TAB, KC_LCTL, LOWER,    KC_SPC,                            KC_ENT,  RAISE,   KC_RCTL, KC_RGUI,  EXT_QWE, KC_RALT
+  //└────────┴────────┴────────┴───┬────┴───┬────┴───┬────┴                          ┴───┬────┴───┬────┴───┬────┴────────┴────────┴────────┘
+                                                  
+  ),
+
+  [_LOWER] = LAYOUT( 
+  //┌────────┬────────┬────────┬────────┬────────┬────────┐                          ┌────────┬────────┬────────┬────────┬────────┬────────┐
+     KC_F1,    KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,                              _______,  KC_7,   KC_8,    KC_9,   KC_PLUS, _______,
+  //├────────┼────────┼────────┼────────┼────────┼────────┤                          ├────────┼────────┼────────┼────────┼────────┼────────┤
+     KC_F7,    KC_F8,   KC_LEFT, KC_UP,  KC_RGHT,  KC_F9,                            KC_PSLS,   KC_4,   KC_5,    KC_6,   KC_MINUS, KC_MUTE,
+  //├────────┼────────┼────────┼────────┼────────┼────────┤                          ├────────┼────────┼────────┼────────┼────────┼────────┤
+     _______,  KC_F10,   KC_F11,  KC_DOWN, KC_F11, KC_F12,                            KC_PAST,  KC_1,   KC_2,    KC_3,   KC_EQL,   KC_VOLU,
+  //├────────┼────────┼────────┼────────┼────────┼────────┼                          ┼────────┼────────┼────────┼────────┼────────┼────────┤
+     _______,  _______,  _______, _______, _______, _______,                           KC_0,   _______, KC_COMM, KC_DOT,  KC_ENT, KC_VOLD
+  //└────────┴────────┴────────┴───┬────┴───┬────┴───┬────┴                          ┴───┬────┴───┬────┴───┬────┴────────┴────────┴────────┘
+  
+  ),
+
+  [_RAISE] = LAYOUT(
+  //┌────────┬────────┬────────┬────────┬────────┬────────┐                          ┌────────┬────────┬────────┬────────┬────────┬────────┐
+     KC_GRAVE,  KC_TILD, KC_UNDS, KC_EQL, KC_PIPE,  _______,                         KC_HOME, KC_DEL, _______, KC_INS, KC_PGUP, _______,
+  //├────────┼────────┼────────┼────────┼────────┼────────┤                          ├────────┼────────┼────────┼────────┼────────┼────────┤
+     KC_BSLASH,KC_LCBR, KC_RCBR, KC_MINUS, KC_LBRC, KC_RBRC,                          KC_END, KC_LEFT, KC_UP, KC_RGHT, KC_PGDN, _______,
+  //├────────┼────────┼────────┼────────┼────────┼────────┤                          ├────────┼────────┼────────┼────────┼────────┼────────┤
+     KC_COLN,  KC_LT,   KC_GT,  KC_PLUS,  KC_LPRN, KC_RPRN,                            _______, _______, KC_DOWN, _______, _______, _______,
+  //├────────┼────────┼────────┼────────┼────────┼────────┼                          ┼────────┼────────┼────────┼────────┼────────┼────────┤
+     _______, _______, _______, _______, _______, _______,                            _______, _______, _______, _______, _______, _______
+  //└────────┴────────┴────────┴───┬────┴───┬────┴───┬────┴                          ┴───┬────┴───┬────┴───┬────┴────────┴────────┴────────┘
+  
+  ),
+
+  [_ADJUST] = LAYOUT(
+  //┌────────┬────────┬────────┬────────┬────────┬────────┐                          ┌────────┬────────┬────────┬────────┬────────┬────────┐
+     _______,  _______, KC_CAPS, KC_MENU, KC_APP, KC_PSCR,                            _______, _______, _______, _______, _______, _______,
+  //├────────┼────────┼────────┼────────┼────────┼────────┤                          ├────────┼────────┼────────┼────────┼────────┼────────┤
+     _______,  _______,_______, _______, _______, KC_PAUS,                            _______, _______, _______, _______, _______, _______,
+  //├────────┼────────┼────────┼────────┼────────┼────────┤                          ├────────┼────────┼────────┼────────┼────────┼────────┤
+     _______, _______, _______, _______, _______,  KC_SLCK,                           _______, _______, _______, _______, _______, _______,
+  //├────────┼────────┼────────┼────────┼────────┼────────┼                          ┼────────┼────────┼────────┼────────┼────────┼────────┤
+     _______, _______, _______, _______, _______, _______,                            _______, _______, _______, _______, _______, _______
+  //└────────┴────────┴────────┴───┬────┴───┬────┴───┬────┴                          ┴───┬────┴───┬────┴───┬────┴────────┴────────┴────────┘
+   
+  ),
+
+  
+};
+
+
+void matrix_init_user() {
+  steno_set_mode(STENO_MODE_GEMINI); // or STENO_MODE_BOLT
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case PLOVER:
+      if (record->event.pressed) {
+        set_single_persistent_default_layer(_PLOVER);
+      }
+      return false;
+      break;
+    case LOWER:
+      if (record->event.pressed) {
+        layer_on(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case RAISE:
+      if (record->event.pressed) {
+        layer_on(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case ADJUST:
+      if (record->event.pressed) {
+        layer_on(_ADJUST);
+      } else {
+        layer_off(_ADJUST);
+      }
+      return false;
+      break;
+    case QWERTY:
+      if (!record->event.pressed) {
+        layer_on(_QWERTY);
+      }
+      return false;
+      break;
+    case EXT_QWE:
+      if (record->event.pressed) {
+        layer_off(_QWERTY);
+      }
+      return false;
+      break;
+  }
+  return true;
+}
diff --git a/keyboards/levinson/keymaps/steno/rules.mk b/keyboards/levinson/keymaps/steno/rules.mk
new file mode 100644
index 000000000..9c31e590e
--- /dev/null
+++ b/keyboards/levinson/keymaps/steno/rules.mk
@@ -0,0 +1,7 @@
+EXTRAKEY_ENABLE = no       # Disable if you run out of usb endpoints. Media keys need this to work.
+MOUSEKEY_ENABLE = no        # Mouse keys(+4700) Uses extra usb enpoints. 
+STENO_ENABLE = yes          # Additional protocols for Stenography(+1700), requires VIRTSER.
+AUDIO_ENABLE = no           # Audio output on port C6
+MIDI_ENABLE = no            # MIDI controls
+NKRO_ENABLE = yes
+BOOTMAGIC_ENABLE = yes
diff --git a/keyboards/levinson/keymaps/treadwell/config.h b/keyboards/levinson/keymaps/treadwell/config.h
index e6648db14..69783937b 100644
--- a/keyboards/levinson/keymaps/treadwell/config.h
+++ b/keyboards/levinson/keymaps/treadwell/config.h
@@ -16,6 +16,12 @@
 
 #define TAPPING_TERM 150
 
+/* default layer sounds */
+#define DEFAULT_LAYER_SONGS { SONG(QWERTY_SOUND), \
+                              SONG(GAME_SOUND), \
+                              SONG(COLEMAK_SOUND) \
+                            }
+
 //#undef RGBLED_NUM
 //#define RGBLIGHT_ANIMATIONS
 //#define RGBLED_NUM 12
diff --git a/keyboards/levinson/keymaps/treadwell/keymap.c b/keyboards/levinson/keymaps/treadwell/keymap.c
index 10d7d3035..bcc744a6d 100644
--- a/keyboards/levinson/keymaps/treadwell/keymap.c
+++ b/keyboards/levinson/keymaps/treadwell/keymap.c
@@ -1,12 +1,10 @@
-#include "levinson.h"
-#include "action_layer.h"
-#include "eeconfig.h"
+#include QMK_KEYBOARD_H
 
 extern keymap_config_t keymap_config;
 
 #define _QWERTY 0
 #define _COLEMAK 1
-#define _DVORAK 2
+#define _GAME 2
 #define _NUMB 3
 #define _CODE 4
 #define _SYS 5
@@ -16,7 +14,7 @@ extern keymap_config_t keymap_config;
 enum custom_keycodes {
   QWERTY = SAFE_RANGE,
   COLEMAK,
-  DVORAK,
+  GAME,
   NUMB,
   CODE,
   SYS,
@@ -27,13 +25,9 @@ enum custom_keycodes {
 #define KC_ KC_TRNS
 #define _______ KC_TRNS
 
-#define KC_CAPW LGUI(LSFT(KC_3))        // Capture whole screen
-#define KC_CPYW LGUI(LSFT(LCTL(KC_3)))  // Copy whole screen
-#define KC_CAPP LGUI(LSFT(KC_4))        // Capture portion of screen
-#define KC_CPYP LGUI(LSFT(LCTL(KC_4)))  // Copy portion of screen
 #define KC_X1 CODE
 #define KC_X2 NUMB
-#define KC_X3 SYS
+#define KC_X3 MO(_SYS)
 #define KC_X4 MT(MOD_LSFT, KC_ENT)
 
 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
@@ -62,25 +56,25 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
   //`----+----+----+----+----+----'    `----+----+----+----+----+----'
   ),
 
-  [_DVORAK] = LAYOUT_kc(
+  [_GAME] = LAYOUT_kc(
   //,----+----+----+----+----+----.    ,----+----+----+----+----+----.
-     TAB ,QUOT,COMM,DOT , P  , Y  ,      F  , G  , C  , R  , L  ,MINS,
+     TAB , Q  , W  , E  , R  , T  ,      Y  , U  , I  , O  , P  ,MINS,
   //|----+----+----+----+----+----|    |----+----+----+----+----+----|
-     BSPC, A  , O  , E  , U  , I  ,      D  , H  , T  , N  , S  ,SLSH,
+     ESC , A  , S  , D  , F  , G  ,      H  , J  , K  , L  ,SCLN,QUOT,
   //|----+----+----+----+----+----|    |----+----+----+----+----+----|
-     LSFT,SCLN, Q  , J  , K  , X  ,      B  , M  , W  , V  , Z  , X4 ,
+     LSFT, Z  , X  , C  , V  , B  ,      N  , M  ,COMM,DOT ,SLSH, X4 ,
   //|----+----+----+----+----+----|    |----+----+----+----+----+----|
-      X3 ,LCTL,LALT,LGUI, X1 ,LALT,     SPC , X2 ,LEFT,DOWN, UP ,RGHT
+      X3 ,LCTL,LALT,LGUI, X2 , SPC,     SPC , X1 ,LEFT,DOWN, UP ,RGHT
   //`----+----+----+----+----+----'    `----+----+----+----+----+----'
   ),
 
   [_NUMB] = LAYOUT_kc(
   //,----+----+----+----+----+----.    ,----+----+----+----+----+----.
-     TILD,EXLM, AT ,HASH,DLR ,PERC,     CIRC,AMPR,ASTR,LPRN,RPRN,PMNS,
+     TILD,EXLM, AT ,HASH,DLR ,PERC,     CIRC,AMPR,ASTR,LPRN,RPRN, DEL,
   //|----+----+----+----+----+----|    |----+----+----+----+----+----|
      GRV , 1  , 2  , 3  , 4  , 5  ,      6  , 7  , 8  , 9  , 0  ,UNDS,
   //|----+----+----+----+----+----|    |----+----+----+----+----+----|
-         ,    ,MPRV,MPLY,MNXT,    ,         ,VOLD,VOLU,MUTE,    ,    ,
+         ,    ,MPRV,MNXT,MPLY,    ,         ,VOLD,VOLU,MUTE,    ,    ,
   //|----+----+----+----+----+----|    |----+----+----+----+----+----|
          ,    ,    ,    ,    ,LALT,         ,    ,    ,    ,    ,
   //`----+----+----+----+----+----'    `----+----+----+----+----+----'
@@ -92,7 +86,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
   //|----+------+----+----+----+----|    |----+----+----+----+----+----|
      CAPS,SELECT,LEFT,DOWN,RGHT,DEL ,     PGDN, END,LBRC,RBRC,MINS,UNDS,
   //|----+------+----+----+----+----|    |----+----+----+----+----+----|
-         , UNDO ,CUT ,COPY,PASTE,   ,     LEFT,RGHT,LCBR,RCBR,PLUS,PEQL,
+     LSFT, UNDO ,CUT ,COPY,PASTE,   ,     LEFT,RGHT,LCBR,RCBR,PLUS,PEQL,
   //|----+------+----+----+----+----|    |----+----+----+----+----+----|
          ,      ,    ,    ,    ,LALT,         ,    ,    ,    ,    ,
   //`----+------+----+----+----+----'    `----+----+----+----+----+----'
@@ -100,10 +94,10 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 
   [_SYS] = LAYOUT_kc(
   //,----+----+----+----+----+----.    ,----+----+----+----+----+----.
-     F12 , F1 , F2 , F3 , F4 , F5 ,      F6 , F7 , F8 , F9 ,F10 ,F11 ,
-  //|----+----+----+----+----+----|    |----+----+----+----+----+----|
          ,    ,    ,    ,    ,    ,         ,    ,    ,    ,    ,    ,
   //|----+----+----+----+----+----|    |----+----+----+----+----+----|
+     F12 , F1 , F2 , F3 , F4 , F5 ,      F6 , F7 , F8 , F9 ,F10 ,F11 ,
+  //|----+----+----+----+----+----|    |----+----+----+----+----+----|
          ,    ,    ,    ,    ,    ,         ,    ,    ,    ,    ,    ,
   //|----+----+----+----+----+----|    |----+----+----+----+----+----|
          ,    ,    ,    ,    ,    ,         ,    ,    ,    ,    ,
@@ -123,7 +117,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  */
   [_ADJUST] = LAYOUT_ortho_4x12( \
     _______, RESET  , RGB_TOG, RGB_MOD, RGB_HUD, RGB_HUI, RGB_SAD, RGB_SAI, RGB_VAD, RGB_VAI, _______, _______, \
-    _______, _______, _______, AU_ON,   AU_OFF,  AG_NORM, AG_SWAP, QWERTY,  COLEMAK, DVORAK,  _______, _______, \
+    _______, _______, _______, AU_ON,   AU_OFF,  AG_NORM, AG_SWAP, QWERTY,  COLEMAK, GAME  ,  _______, _______, \
     _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
     _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ \
   )
@@ -131,43 +125,23 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 
 };
 
-#ifdef AUDIO_ENABLE
-float tone_qwerty[][2]     = SONG(QWERTY_SOUND);
-float tone_dvorak[][2]     = SONG(DVORAK_SOUND);
-float tone_colemak[][2]    = SONG(COLEMAK_SOUND);
-#endif
-
-void persistent_default_layer_set(uint16_t default_layer) {
-  eeconfig_update_default_layer(default_layer);
-  default_layer_set(default_layer);
-}
-
 bool process_record_user(uint16_t keycode, keyrecord_t *record) {
   switch (keycode) {
     case QWERTY:
       if (record->event.pressed) {
-        #ifdef AUDIO_ENABLE
-          PLAY_SONG(tone_qwerty);
-        #endif
-        persistent_default_layer_set(1UL<<_QWERTY);
+        set_single_persistent_default_layer(_QWERTY);
       }
       return false;
       break;
     case COLEMAK:
       if (record->event.pressed) {
-        #ifdef AUDIO_ENABLE
-          PLAY_SONG(tone_colemak);
-        #endif
-        persistent_default_layer_set(1UL<<_COLEMAK);
+        set_single_persistent_default_layer(_COLEMAK);
       }
       return false;
       break;
-    case DVORAK:
+    case GAME:
       if (record->event.pressed) {
-        #ifdef AUDIO_ENABLE
-          PLAY_SONG(tone_dvorak);
-        #endif
-        persistent_default_layer_set(1UL<<_DVORAK);
+        set_single_persistent_default_layer(_GAME);
       }
       return false;
       break;
diff --git a/keyboards/levinson/keymaps/treadwell/rules.mk b/keyboards/levinson/keymaps/treadwell/rules.mk
index c5e16f136..1d2d9e5a9 100644
--- a/keyboards/levinson/keymaps/treadwell/rules.mk
+++ b/keyboards/levinson/keymaps/treadwell/rules.mk
@@ -1,6 +1,2 @@
 RGBLIGHT_ENABLE = no
 BACKLIGHT_ENABLE = no
-
-ifndef QUANTUM_DIR
-	include ../../../../Makefile
-endif
diff --git a/keyboards/levinson/keymaps/valgrahf/rules.mk b/keyboards/levinson/keymaps/valgrahf/rules.mk
index 0db809fe4..1f54b32c4 100644
--- a/keyboards/levinson/keymaps/valgrahf/rules.mk
+++ b/keyboards/levinson/keymaps/valgrahf/rules.mk
@@ -1,8 +1,3 @@
 RGBLIGHT_ENABLE = yes
 BACKLIGHT_ENABLE = yes
 AUDIO_ENABLE = no
-USE_I2C = no
-
-ifndef QUANTUM_DIR
-	include ../../../../Makefile
-endif
diff --git a/keyboards/levinson/keymaps/xtonhasvim/config.h b/keyboards/levinson/keymaps/xtonhasvim/config.h
new file mode 100644
index 000000000..bcd2220ce
--- /dev/null
+++ b/keyboards/levinson/keymaps/xtonhasvim/config.h
@@ -0,0 +1,35 @@
+#pragma once
+
+#define USE_SERIAL
+
+// #define MUSIC_MASK (keycode != KC_NO)
+
+/*
+ * 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 2
+
+// help for fast typist+dual function keys?
+#define PERMISSIVE_HOLD
+
+// where is the cord plugged in?
+#define MASTER_LEFT
diff --git a/keyboards/levinson/keymaps/xtonhasvim/keymap.c b/keyboards/levinson/keymaps/xtonhasvim/keymap.c
new file mode 100644
index 000000000..b9341ff35
--- /dev/null
+++ b/keyboards/levinson/keymaps/xtonhasvim/keymap.c
@@ -0,0 +1,237 @@
+ /* Copyright 2015-2017 Christon DeWan
+ *
+ * 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
+#include "xtonhasvim.h"
+#include "fancylighting.h"
+
+/************************************
+ * states
+ ************************************/
+
+enum layers {
+  _QWERTY,
+  _LOWER,
+  _RAISE,
+  _ADJUST,
+  _MOVE,
+  _MOUSE,
+  _CMD
+};
+
+extern uint8_t vim_cmd_layer(void) { return _CMD; }
+
+/************************************
+ * keymaps!
+ ************************************/
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Ctrl*|   A* |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   ;* |  '   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | chkwm|      | Alt  | GUI  |Lower*|    Sp|ace   |Raise*| SPC  | GUI  |      | Vim  |
+ * `-----------------------------------------------------------------------------------'
+ *
+ * - Ctrl acts as Esc when tapped.
+ * - Holding A or ; switches to movement layer.
+ * - Raise and Lower are one-shot layers.
+ */
+[_QWERTY] = LAYOUT_ortho_4x12( \
+  KC_TAB,         KC_Q,      KC_W,    KC_E,    KC_R,         KC_T,    KC_Y,   KC_U,       KC_I,    KC_O,    KC_P,              KC_BSPC, \
+  LCTL_T(KC_ESC), KC_A,      KC_S,    KC_D,    KC_F,         KC_G,    KC_H,   KC_J,       KC_K,    KC_L,    LT(_MOVE,KC_SCLN), KC_QUOT, \
+  KC_LSFT,        KC_Z,      KC_X,    KC_C,    KC_V,         KC_B,    KC_N,   KC_M,       KC_COMM, KC_DOT,  KC_SLSH,           RSFT_T(KC_ENT) , \
+  LSFT(KC_LALT),  MO(_MOVE), KC_LALT, KC_LGUI, MO(_LOWER),   KC_SPC,  KC_SPC, MO(_RAISE), KC_RGUI, KC_RALT, MO(_MOVE),         VIM_START \
+),
+
+/* Lower
+ * ,-----------------------------------------------------------------------------------.
+ * |  ~   |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   _  |   +  |   {  |   }  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |  Del |   !  |   @  |   #  |   $  |   %  |   ^  |   &  |   *  |   (  |   )  |  |   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |      | Next | Vol- | Vol+ | Play |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      | Bail |      |      |      |      |      |Raise |      |      | Bail |      |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_LOWER] = LAYOUT_ortho_4x12( \
+  KC_TILD, KC_F1,       KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_UNDS,    KC_PLUS, KC_LCBR, KC_RCBR,     KC_BSPC, \
+  KC_DEL,  KC_EXLM,     KC_AT,   KC_HASH, KC_DLR,  KC_PERC, KC_CIRC, KC_AMPR,    KC_ASTR, KC_LPRN, KC_RPRN,     KC_PIPE, \
+  _______, KC_F7,       KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  X_____X,    X_____X, X_____X, X_____X,     FIREY_RETURN, \
+  RESET,   TO(_QWERTY), _______, _______, _______, _______, _______, MO(_RAISE), _______, _______, TO(_QWERTY), X_____X \
+),
+
+/* Raise
+ * ,-----------------------------------------------------------------------------------.
+ * |   `  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   -  |   =  |   [  |   ]  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |  Del |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  |  \   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |      | Next | Vol- | Vol+ | Play |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      | Bail |      |      |Lower |      |      |      |      |      | Bail |      |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_RAISE] = LAYOUT_ortho_4x12( \
+  KC_GRV,  X_____X,     X_____X, X_____X, X_____X,    X_____X, X_____X, KC_MINS, KC_EQL,  KC_LBRC, KC_RBRC,     KC_BSPC, \
+  KC_DEL,  KC_1,        KC_2,    KC_3,    KC_4,       KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,        KC_BSLS, \
+  _______, X_____X,     X_____X, X_____X, X_____X,    X_____X, X_____X, X_____X, X_____X, X_____X, X_____X,     FIREY_RETURN, \
+  X_____X, TO(_QWERTY), _______, _______, MO(_LOWER), _______, _______, _______, _______, _______, TO(_QWERTY), RESET \
+),
+
+
+/* Adjust (Lower + Raise)
+ * ,-------------------------------------------------------------------------------------.
+ * |BL Raise|      |      |      |      |      |      |      |      |      |      |      |
+ * |--------+------+------+------+------+-------------+------+------+------+------+------|
+ * |BL Lower|      |      |      |      |      |      |      |      |      |      |      |
+ * |--------+------+------+------+------+------|------+------+------+------+------+------|
+ * |BL STEP |      |      |      |      |      |      | Next | Vol- | Vol+ | Play |      |
+ * |--------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Backlite| Bail |      |      |      |      |      |      |      |      | Bail |      |
+ * `-------------------------------------------------------------------------------------'
+ */
+[_ADJUST] = LAYOUT_ortho_4x12( \
+  BL_INC,  X_____X,    X_____X, X_____X, X_____X, X_____X, X_____X, X_____X, X_____X, X_____X, X_____X,     RGB_MODE_PLAIN, \
+  BL_DEC,  X_____X,    X_____X, X_____X, X_____X, X_____X, X_____X, X_____X, X_____X, X_____X, X_____X,     RGB_MODE_REVERSE, \
+  BL_STEP, X_____X,    X_____X, X_____X, X_____X, X_____X, X_____X, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY,     RGB_MODE_FORWARD, \
+  BL_TOGG, TO(_MOUSE), _______, _______, _______, _______, _______, _______, _______, _______, TO(_QWERTY), RGB_TOG \
+),
+
+
+/* movement layer (hold semicolon) */
+[_MOVE] = LAYOUT_ortho_4x12( \
+  TO(_QWERTY), X_____X, X_____X,       X_____X,             X_____X,             X_____X,       KC_HOME, KC_PGDN, KC_PGUP, KC_END,  X_____X, X_____X, \
+  _______,     X_____X, LGUI(KC_LBRC), LGUI(LSFT(KC_LBRC)), LGUI(LSFT(KC_RBRC)), LGUI(KC_RBRC), KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT, _______, X_____X, \
+  _______,     X_____X, X_____X,       X_____X,             X_____X,             X_____X,       X_____X, X_____X, X_____X, X_____X, X_____X, _______, \
+  _______,     _______, _______,       _______,             _______,             X_____X,       X_____X, _______, _______, _______, _______, X_____X \
+),
+
+/* mouse layer
+ */
+[_MOUSE] = LAYOUT_ortho_4x12( \
+  TO(_QWERTY), X_____X,     X_____X,    KC_MS_UP,   X_____X,     X_____X, KC_MS_WH_LEFT, KC_MS_WH_DOWN, KC_MS_WH_UP, KC_MS_WH_RIGHT, X_____X,     X_____X, \
+  _______,     X_____X,     KC_MS_LEFT, KC_MS_DOWN, KC_MS_RIGHT, X_____X, X_____X,       KC_MS_BTN1,    KC_MS_BTN2,  KC_MS_BTN3,     X_____X,     X_____X, \
+  _______,     X_____X,     X_____X,    X_____X,    X_____X,     X_____X, X_____X,       X_____X,       X_____X,     X_____X,        X_____X,     _______, \
+  _______,     TO(_QWERTY), _______,    _______,    _______,     X_____X, X_____X,       _______,       _______,     _______,        TO(_QWERTY), X_____X \
+),
+
+/* vim command layer.
+ */
+[_CMD] = LAYOUT_ortho_4x12( \
+  X_____X,   X_____X,     VIM_W,   VIM_E,   X_____X, X_____X, VIM_Y,   VIM_U,   VIM_I,     VIM_O,      VIM_P,       X_____X, \
+  VIM_ESC,   VIM_A,       VIM_S,   VIM_D,   X_____X, VIM_G,   VIM_H,   VIM_J,   VIM_K,     VIM_L,      X_____X,     X_____X, \
+  VIM_SHIFT, X_____X,     VIM_X,   VIM_C,   VIM_V,   VIM_B,   X_____X, X_____X, VIM_COMMA, VIM_PERIOD, X_____X,     VIM_SHIFT, \
+  _______,   TO(_QWERTY), _______, _______, X_____X, X_____X, X_____X, X_____X, _______,   _______,    TO(_QWERTY), X_____X \
+)
+
+};
+
+
+
+#define C_RED 0xFF, 0x00, 0x00
+#define C_GRN 0x00, 0xFF, 0x00
+#define C_BLU 0x00, 0x00, 0xFF
+
+#define C_YAN 0x00, 0xFF, 0xFF
+#define C_PRP 0x7A, 0x00, 0xFF
+#define C_ORG 0xFF, 0x93, 0x00
+
+void rgbflag(uint8_t r, uint8_t g, uint8_t b, uint8_t rr, uint8_t gg, uint8_t bb) {
+  LED_TYPE *target_led = user_rgb_mode ? shadowed_led : led;
+  for (int i = 0; i < RGBLED_NUM; i++)  {
+    switch (i) {
+    case 10: case 11:
+      target_led[i].r = r;
+      target_led[i].g = g;
+      target_led[i].b = b;
+      break;
+    case 0: case 1:
+      target_led[i].r = rr;
+      target_led[i].g = gg;
+      target_led[i].b = bb;
+      break;
+    default:
+      target_led[i].r = 0;
+      target_led[i].g = 0;
+      target_led[i].b = 0;
+      break;
+    }
+  }
+  rgblight_set();
+}
+
+void set_state_leds(void) {
+  if (rgblight_get_mode() == 1) {
+    switch (biton32(layer_state)) {
+    case _RAISE:
+      rgbflag(C_BLU, C_GRN);
+      break;
+    case _LOWER:
+      rgbflag(C_BLU, C_RED);
+      break;
+    case _ADJUST:
+      rgbflag(C_BLU, C_PRP);
+      break;
+    case _MOVE:
+      rgbflag(C_RED, C_PRP);
+      break;
+    case _MOUSE:
+      rgbflag(C_RED, C_GRN);
+      break;
+    case _CMD:
+      switch(vstate) {
+        case VIM_V:
+        case VIM_VI:
+        case VIM_VS:
+          rgbflag(C_GRN, C_YAN);
+          break;
+        case VIM_C:
+        case VIM_CI:
+          rgbflag(C_GRN, C_ORG);
+          break;
+        case VIM_D:
+        case VIM_DI:
+          rgbflag(C_GRN, C_RED);
+          break;
+        case VIM_G:
+          rgbflag(C_GRN, C_BLU);
+          break;
+        case VIM_Y:
+          rgbflag(C_GRN, C_PRP);
+          break;
+        case VIM_START:
+        default:
+          rgbflag(C_GRN, C_GRN);
+          break;
+      }
+      break;
+    default: //  for any other layers, or the default layer
+      rgbflag(C_YAN, C_YAN);
+      break;
+    }
+  }
+}
+
+uint32_t layer_state_set_user(uint32_t state) {
+  return update_tri_layer_state(state, _RAISE, _LOWER, _ADJUST);
+}
diff --git a/keyboards/levinson/keymaps/xtonhasvim/readme.md b/keyboards/levinson/keymaps/xtonhasvim/readme.md
new file mode 100644
index 000000000..9ff4ce1f1
--- /dev/null
+++ b/keyboards/levinson/keymaps/xtonhasvim/readme.md
@@ -0,0 +1,9 @@
+# Xton has a tiny keyboard! With Vim!
+
+Based on the standard Planck layout with a few changes:
+
+* Escape moved to dual-function with control.
+* Dedicated movement and mouse layers.
+* Top and middle row swapped in `_RAISE` and `_LOWER` because I never use F-keys.
+* Vim layers! See `users/xtonhasvim`.
+
diff --git a/keyboards/levinson/keymaps/xtonhasvim/rules.mk b/keyboards/levinson/keymaps/xtonhasvim/rules.mk
new file mode 100644
index 000000000..ad5466991
--- /dev/null
+++ b/keyboards/levinson/keymaps/xtonhasvim/rules.mk
@@ -0,0 +1,5 @@
+# MOUSEKEY_ENABLE = yes
+# BACKLIGHT_ENABLE = yes
+# AUDIO_ENABLE = no
+
+RGBLIGHT_ENABLE = yes        # Enable WS2812 RGB underlight.
diff --git a/keyboards/levinson/levinson.h b/keyboards/levinson/levinson.h
index 6b18b1a3e..2106bc0e3 100644
--- a/keyboards/levinson/levinson.h
+++ b/keyboards/levinson/levinson.h
@@ -1,5 +1,4 @@
-#ifndef LEVINSON_H
-#define LEVINSON_H
+#pragma once
 
 #include "quantum.h"
 
@@ -24,5 +23,3 @@
     )
 
 #define LAYOUT_kc_ortho_4x12 LAYOUT_kc
-
-#endif
diff --git a/keyboards/levinson/matrix.c b/keyboards/levinson/matrix.c
deleted file mode 100644
index 217264f26..000000000
--- a/keyboards/levinson/matrix.c
+++ /dev/null
@@ -1,484 +0,0 @@
-/*
-Copyright 2017 Danny Nguyen <danny@keeb.io>
-
-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/>.
-*/
-
-/*
- * scan matrix
- */
-#include <stdint.h>
-#include <stdbool.h>
-#include <avr/io.h>
-#include "wait.h"
-#include "print.h"
-#include "debug.h"
-#include "util.h"
-#include "matrix.h"
-#include "split_util.h"
-#include "pro_micro.h"
-#include "config.h"
-#include "timer.h"
-
-#ifdef BACKLIGHT_ENABLE 
-    #include "backlight.h"
-    extern backlight_config_t backlight_config;
-#endif
-
-#ifdef USE_I2C
-#  include "i2c.h"
-#else // USE_SERIAL
-#  include "serial.h"
-#endif
-
-#ifndef DEBOUNCING_DELAY
-#   define DEBOUNCING_DELAY 5
-#endif
-
-#if (DEBOUNCING_DELAY > 0)
-    static uint16_t debouncing_time;
-    static bool debouncing = false;
-#endif
-
-#if (MATRIX_COLS <= 8)
-#    define print_matrix_header()  print("\nr/c 01234567\n")
-#    define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop(matrix[i])
-#    define ROW_SHIFTER ((uint8_t)1)
-#else
-#    error "Currently only supports 8 COLS"
-#endif
-static matrix_row_t matrix_debouncing[MATRIX_ROWS];
-
-#define ERROR_DISCONNECT_COUNT 5
-
-#define SERIAL_LED_ADDR 0x00
-
-#define ROWS_PER_HAND (MATRIX_ROWS/2)
-
-static uint8_t error_count = 0;
-
-static const uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
-static const uint8_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
-
-/* matrix state(1:on, 0:off) */
-static matrix_row_t matrix[MATRIX_ROWS];
-static matrix_row_t matrix_debouncing[MATRIX_ROWS];
-
-#if (DIODE_DIRECTION == COL2ROW)
-    static void init_cols(void);
-    static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row);
-    static void unselect_rows(void);
-    static void select_row(uint8_t row);
-    static void unselect_row(uint8_t row);
-#elif (DIODE_DIRECTION == ROW2COL)
-    static void init_rows(void);
-    static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col);
-    static void unselect_cols(void);
-    static void unselect_col(uint8_t col);
-    static void select_col(uint8_t col);
-#endif
-
-__attribute__ ((weak))
-void matrix_init_kb(void) {
-    matrix_init_user();
-}
-
-__attribute__ ((weak))
-void matrix_scan_kb(void) {
-    matrix_scan_user();
-}
-
-__attribute__ ((weak))
-void matrix_init_user(void) {
-}
-
-__attribute__ ((weak))
-void matrix_scan_user(void) {
-}
-
-inline
-uint8_t matrix_rows(void)
-{
-    return MATRIX_ROWS;
-}
-
-inline
-uint8_t matrix_cols(void)
-{
-    return MATRIX_COLS;
-}
-
-void matrix_init(void)
-{
-    debug_enable = true;
-    debug_matrix = true;
-    debug_mouse = true;
-    // initialize row and col
-    unselect_rows();
-    init_cols();
-
-    TX_RX_LED_INIT;
-
-    // initialize matrix state: all keys off
-    for (uint8_t i=0; i < MATRIX_ROWS; i++) {
-        matrix[i] = 0;
-        matrix_debouncing[i] = 0;
-    }
-
-    matrix_init_quantum();
-
-}
-
-uint8_t _matrix_scan(void)
-{
-    int offset = isLeftHand ? 0 : (ROWS_PER_HAND);
-#if (DIODE_DIRECTION == COL2ROW)
-    // Set row, read cols
-    for (uint8_t current_row = 0; current_row < ROWS_PER_HAND; current_row++) {
-#       if (DEBOUNCING_DELAY > 0)
-            bool matrix_changed = read_cols_on_row(matrix_debouncing+offset, current_row);
-
-            if (matrix_changed) {
-                debouncing = true;
-                debouncing_time = timer_read();
-            }
-
-#       else
-            read_cols_on_row(matrix+offset, current_row);
-#       endif
-
-    }
-
-#elif (DIODE_DIRECTION == ROW2COL)
-    // Set col, read rows
-    for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) {
-#       if (DEBOUNCING_DELAY > 0)
-            bool matrix_changed = read_rows_on_col(matrix_debouncing+offset, current_col);
-            if (matrix_changed) {
-                debouncing = true;
-                debouncing_time = timer_read();
-            }
-#       else
-             read_rows_on_col(matrix+offset, current_col);
-#       endif
-
-    }
-#endif
-
-#   if (DEBOUNCING_DELAY > 0)
-        if (debouncing && (timer_elapsed(debouncing_time) > DEBOUNCING_DELAY)) {
-            for (uint8_t i = 0; i < ROWS_PER_HAND; i++) {
-                matrix[i+offset] = matrix_debouncing[i+offset];
-            }
-            debouncing = false;
-        }
-#   endif
-
-    return 1;
-}
-
-#ifdef USE_I2C
-
-// Get rows from other half over i2c
-int i2c_transaction(void) {
-    int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
-
-    int err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_WRITE);
-    if (err) goto i2c_error;
-
-    // start of matrix stored at 0x00
-    err = i2c_master_write(0x00);
-    if (err) goto i2c_error;
-
-#ifdef BACKLIGHT_ENABLE
-    // Write backlight level for slave to read
-    err = i2c_master_write(backlight_config.enable ? backlight_config.level : 0);
-#else
-    // Write zero, so our byte index is the same
-    err = i2c_master_write(0x00);
-#endif
-    if (err) goto i2c_error;
-
-    // Start read
-    err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_READ);
-    if (err) goto i2c_error;
-
-    if (!err) {
-        int i;
-        for (i = 0; i < ROWS_PER_HAND-1; ++i) {
-            matrix[slaveOffset+i] = i2c_master_read(I2C_ACK);
-        }
-        matrix[slaveOffset+i] = i2c_master_read(I2C_NACK);
-        i2c_master_stop();
-    } else {
-i2c_error: // the cable is disconnceted, or something else went wrong
-        i2c_reset_state();
-        return err;
-    }
-
-    return 0;
-}
-
-#else // USE_SERIAL
-
-int serial_transaction(void) {
-    int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
-
-    if (serial_update_buffers()) {
-        return 1;
-    }
-
-    for (int i = 0; i < ROWS_PER_HAND; ++i) {
-        matrix[slaveOffset+i] = serial_slave_buffer[i];
-    }
-
-#ifdef BACKLIGHT_ENABLE
-    // Write backlight level for slave to read
-    serial_master_buffer[SERIAL_LED_ADDR] = backlight_config.enable ? backlight_config.level : 0;
-#endif
-    return 0;
-}
-#endif
-
-uint8_t matrix_scan(void)
-{
-    uint8_t ret = _matrix_scan();
-
-#ifdef USE_I2C
-    if( i2c_transaction() ) {
-#else // USE_SERIAL
-    if( serial_transaction() ) {
-#endif
-        // turn on the indicator led when halves are disconnected
-        TXLED1;
-
-        error_count++;
-
-        if (error_count > ERROR_DISCONNECT_COUNT) {
-            // reset other half if disconnected
-            int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
-            for (int i = 0; i < ROWS_PER_HAND; ++i) {
-                matrix[slaveOffset+i] = 0;
-            }
-        }
-    } else {
-        // turn off the indicator led on no error
-        TXLED0;
-        error_count = 0;
-    }
-    matrix_scan_quantum();
-    return ret;
-}
-
-void matrix_slave_scan(void) {
-    _matrix_scan();
-
-    int offset = (isLeftHand) ? 0 : ROWS_PER_HAND;
-
-#ifdef USE_I2C
-#ifdef BACKLIGHT_ENABLE
-    // Read backlight level sent from master and update level on slave
-    backlight_set(i2c_slave_buffer[0]);
-#endif
-    for (int i = 0; i < ROWS_PER_HAND; ++i) {
-        i2c_slave_buffer[i+1] = matrix[offset+i];
-    }
-#else // USE_SERIAL
-    for (int i = 0; i < ROWS_PER_HAND; ++i) {
-        serial_slave_buffer[i] = matrix[offset+i];
-    }
-
-#ifdef BACKLIGHT_ENABLE
-    // Read backlight level sent from master and update level on slave
-    backlight_set(serial_master_buffer[SERIAL_LED_ADDR]);
-#endif
-#endif
-}
-
-bool matrix_is_modified(void)
-{
-    if (debouncing) return false;
-    return true;
-}
-
-inline
-bool matrix_is_on(uint8_t row, uint8_t col)
-{
-    return (matrix[row] & ((matrix_row_t)1<<col));
-}
-
-inline
-matrix_row_t matrix_get_row(uint8_t row)
-{
-    return matrix[row];
-}
-
-void matrix_print(void)
-{
-    print("\nr/c 0123456789ABCDEF\n");
-    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
-        phex(row); print(": ");
-        pbin_reverse16(matrix_get_row(row));
-        print("\n");
-    }
-}
-
-uint8_t matrix_key_count(void)
-{
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += bitpop16(matrix[i]);
-    }
-    return count;
-}
-
-#if (DIODE_DIRECTION == COL2ROW)
-
-static void init_cols(void)
-{
-    for(uint8_t x = 0; x < MATRIX_COLS; x++) {
-        uint8_t pin = col_pins[x];
-        _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
-        _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
-    }
-}
-
-static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row)
-{
-    // Store last value of row prior to reading
-    matrix_row_t last_row_value = current_matrix[current_row];
-
-    // Clear data in matrix row
-    current_matrix[current_row] = 0;
-
-    // Select row and wait for row selecton to stabilize
-    select_row(current_row);
-    wait_us(30);
-
-    // For each col...
-    for(uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) {
-
-        // Select the col pin to read (active low)
-        uint8_t pin = col_pins[col_index];
-        uint8_t pin_state = (_SFR_IO8(pin >> 4) & _BV(pin & 0xF));
-
-        // Populate the matrix row with the state of the col pin
-        current_matrix[current_row] |=  pin_state ? 0 : (ROW_SHIFTER << col_index);
-    }
-
-    // Unselect row
-    unselect_row(current_row);
-
-    return (last_row_value != current_matrix[current_row]);
-}
-
-static void select_row(uint8_t row)
-{
-    uint8_t pin = row_pins[row];
-    _SFR_IO8((pin >> 4) + 1) |=  _BV(pin & 0xF); // OUT
-    _SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW
-}
-
-static void unselect_row(uint8_t row)
-{
-    uint8_t pin = row_pins[row];
-    _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
-    _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
-}
-
-static void unselect_rows(void)
-{
-    for(uint8_t x = 0; x < ROWS_PER_HAND; x++) {
-        uint8_t pin = row_pins[x];
-        _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
-        _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
-    }
-}
-
-#elif (DIODE_DIRECTION == ROW2COL)
-
-static void init_rows(void)
-{
-    for(uint8_t x = 0; x < ROWS_PER_HAND; x++) {
-        uint8_t pin = row_pins[x];
-        _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
-        _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
-    }
-}
-
-static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col)
-{
-    bool matrix_changed = false;
-
-    // Select col and wait for col selecton to stabilize
-    select_col(current_col);
-    wait_us(30);
-
-    // For each row...
-    for(uint8_t row_index = 0; row_index < ROWS_PER_HAND; row_index++)
-    {
-
-        // Store last value of row prior to reading
-        matrix_row_t last_row_value = current_matrix[row_index];
-
-        // Check row pin state
-        if ((_SFR_IO8(row_pins[row_index] >> 4) & _BV(row_pins[row_index] & 0xF)) == 0)
-        {
-            // Pin LO, set col bit
-            current_matrix[row_index] |= (ROW_SHIFTER << current_col);
-        }
-        else
-        {
-            // Pin HI, clear col bit
-            current_matrix[row_index] &= ~(ROW_SHIFTER << current_col);
-        }
-
-        // Determine if the matrix changed state
-        if ((last_row_value != current_matrix[row_index]) && !(matrix_changed))
-        {
-            matrix_changed = true;
-        }
-    }
-
-    // Unselect col
-    unselect_col(current_col);
-
-    return matrix_changed;
-}
-
-static void select_col(uint8_t col)
-{
-    uint8_t pin = col_pins[col];
-    _SFR_IO8((pin >> 4) + 1) |=  _BV(pin & 0xF); // OUT
-    _SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW
-}
-
-static void unselect_col(uint8_t col)
-{
-    uint8_t pin = col_pins[col];
-    _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
-    _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
-}
-
-static void unselect_cols(void)
-{
-    for(uint8_t x = 0; x < MATRIX_COLS; x++) {
-        uint8_t pin = col_pins[x];
-        _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
-        _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
-    }
-}
-
-#endif
diff --git a/keyboards/levinson/readme.md b/keyboards/levinson/readme.md
index 79e64d332..8cb4ff1cf 100644
--- a/keyboards/levinson/readme.md
+++ b/keyboards/levinson/readme.md
@@ -4,17 +4,25 @@ Levinson
 A split 40% split 4x12 ortholinear keyboard made and sold by Keebio. It's essentially a Let's Split with LED backlight support and 2u thumb key support. [More info at Keebio](https://keeb.io).
 
 Keyboard Maintainer: [Bakingpy/nooges](https://github.com/nooges)  
-Hardware Supported: Pro Micro  
+Hardware Supported: Pro Micro, Elite-C  
 Hardware Availability: [Keebio](https://keeb.io)  
 
 Make example for this keyboard (after setting up your build environment):
 
     make levinson/rev2:default
 
-Example of flashing this keyboard:
+Example of flashing this keyboard with Pro micro:
 
     make levinson/rev2:default:avrdude
 
-See [build environment setup](https://docs.qmk.fm/build_environment_setup.html) then the [make instructions](https://docs.qmk.fm/make_instructions.html) for more information.
+Example of flashing this keyboard with Elite-C:
+
+You'll need to add `BOOTLOADER = atmel-dfu` to your `rules.mk` to ensure that resetting the board works properly.
+
+Hold the reset button on the Elite-C board, or the reset button on the keyboard if already assembled, then release the button and run:
+
+    make levinson/rev2:default:dfu
+
+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).
 
 A build guide for this keyboard can be found here: [Levinson Build Guide](https://docs.keeb.io)
diff --git a/keyboards/levinson/rev1/config.h b/keyboards/levinson/rev1/config.h
index ddccbc47a..07ba1e221 100644
--- a/keyboards/levinson/rev1/config.h
+++ b/keyboards/levinson/rev1/config.h
@@ -1,6 +1,7 @@
 /*
 Copyright 2012 Jun Wako <wakojun@gmail.com>
 Copyright 2015 Jack Humbert
+Copyright 2018 Danny Nguyen <danny@keeb.io>
 
 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
@@ -16,10 +17,9 @@ You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef REV1_CONFIG_H
-#define REV1_CONFIG_H
+#pragma once
 
-#include "../config.h"
+#include QMK_KEYBOARD_CONFIG_H
 
 /* USB Device descriptor parameter */
 #define VENDOR_ID       0xCEEB
@@ -38,15 +38,12 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define MATRIX_ROW_PINS { D7, E6, B4, B5 }
 #define MATRIX_COL_PINS { F6, F7, B1, B3, B2, F4 }
 
-/* define if matrix has ghost */
-//#define MATRIX_HAS_GHOST
-
-/* number of backlight levels */
-#define BACKLIGHT_LEVELS 7
-
 /* Set 0 if debouncing isn't needed */
 #define DEBOUNCING_DELAY 5
 
+/* serial.c configuration for split keyboard */
+#define SOFT_SERIAL_PIN D0
+
 /* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
 #define LOCKING_SUPPORT_ENABLE
 /* Locking resynchronize hack */
@@ -59,32 +56,9 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 /* ws2812 RGB LED */
 #define RGB_DI_PIN D3
-#define RGBLIGHT_TIMER
+
 #define RGBLED_NUM 12    // Number of LEDs
-#define ws2812_PORTREG  PORTD
-#define ws2812_DDRREG   DDRD
 
 /* Backlight LEDs */
 #define BACKLIGHT_PIN B6
 #define BACKLIGHT_LEVELS 7
-
-/*
- * 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
-//#define NO_ACTION_MACRO
-//#define NO_ACTION_FUNCTION
-
-
-#endif
diff --git a/keyboards/levinson/rev1/rev1.c b/keyboards/levinson/rev1/rev1.c
index edcfd9357..573fa787b 100644
--- a/keyboards/levinson/rev1/rev1.c
+++ b/keyboards/levinson/rev1/rev1.c
@@ -1,6 +1,5 @@
 #include "levinson.h"
 
-
 #ifdef SSD1306OLED
 void led_set_kb(uint8_t usb_led) {
     // put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
diff --git a/keyboards/levinson/rev1/rev1.h b/keyboards/levinson/rev1/rev1.h
index d24d1d7ad..2120bb0fa 100644
--- a/keyboards/levinson/rev1/rev1.h
+++ b/keyboards/levinson/rev1/rev1.h
@@ -1,7 +1,6 @@
-#ifndef REV2_H
-#define REV2_H
+#pragma once
 
-#include "../levinson.h"
+#include "levinson.h"
 
 //void promicro_bootloader_jmp(bool program);
 #include "quantum.h"
@@ -58,5 +57,3 @@
 #endif
 
 #define LAYOUT_ortho_4x12 LAYOUT
-
-#endif
diff --git a/keyboards/levinson/rev2/config.h b/keyboards/levinson/rev2/config.h
index 51ae5cd3c..a731c7195 100644
--- a/keyboards/levinson/rev2/config.h
+++ b/keyboards/levinson/rev2/config.h
@@ -1,6 +1,7 @@
 /*
 Copyright 2012 Jun Wako <wakojun@gmail.com>
 Copyright 2015 Jack Humbert
+Copyright 2018 Danny Nguyen <danny@keeb.io>
 
 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
@@ -16,10 +17,9 @@ You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef REV1_CONFIG_H
-#define REV1_CONFIG_H
+#pragma once
 
-#include "../config.h"
+#include QMK_KEYBOARD_CONFIG_H
 
 /* USB Device descriptor parameter */
 #define VENDOR_ID       0xCEEB
@@ -38,15 +38,12 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define MATRIX_ROW_PINS { D4, D7, E6, B4 }
 #define MATRIX_COL_PINS { F6, F7, B1, B3, B2, B6 }
 
-/* define if matrix has ghost */
-//#define MATRIX_HAS_GHOST
-
-/* number of backlight levels */
-#define BACKLIGHT_LEVELS 7
-
 /* Set 0 if debouncing isn't needed */
 #define DEBOUNCING_DELAY 5
 
+/* serial.c configuration for split keyboard */
+#define SOFT_SERIAL_PIN D0
+
 /* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
 #define LOCKING_SUPPORT_ENABLE
 /* Locking resynchronize hack */
@@ -59,32 +56,9 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 /* ws2812 RGB LED */
 #define RGB_DI_PIN D3
-#define RGBLIGHT_TIMER
+
 #define RGBLED_NUM 12    // Number of LEDs
-#define ws2812_PORTREG  PORTD
-#define ws2812_DDRREG   DDRD
 
 /* Backlight LEDs */
 #define BACKLIGHT_PIN B5
 #define BACKLIGHT_LEVELS 7
-
-/*
- * 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
-//#define NO_ACTION_MACRO
-//#define NO_ACTION_FUNCTION
-
-
-#endif
diff --git a/keyboards/levinson/rev2/rev2.h b/keyboards/levinson/rev2/rev2.h
index d24d1d7ad..2120bb0fa 100644
--- a/keyboards/levinson/rev2/rev2.h
+++ b/keyboards/levinson/rev2/rev2.h
@@ -1,7 +1,6 @@
-#ifndef REV2_H
-#define REV2_H
+#pragma once
 
-#include "../levinson.h"
+#include "levinson.h"
 
 //void promicro_bootloader_jmp(bool program);
 #include "quantum.h"
@@ -58,5 +57,3 @@
 #endif
 
 #define LAYOUT_ortho_4x12 LAYOUT
-
-#endif
diff --git a/keyboards/levinson/rules.mk b/keyboards/levinson/rules.mk
index 8e67497f4..8f1fa130f 100644
--- a/keyboards/levinson/rules.mk
+++ b/keyboards/levinson/rules.mk
@@ -1,49 +1,7 @@
-SRC += matrix.c \
-	   i2c.c \
-	   split_util.c \
-	   serial.c \
-	   ssd1306.c
-
-# MCU name
-#MCU = at90usb1287
 MCU = atmega32u4
-
-# Processor frequency.
-#     This will define a symbol, F_CPU, in all source code files equal to the
-#     processor frequency in Hz. You can then use this symbol in your source code to
-#     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
-#     automatically to create a 32-bit value in your source code.
-#
-#     This will be an integer division of F_USB below, as it is sourced by
-#     F_USB after it has run through any CPU prescalers. Note that this value
-#     does not *change* the processor frequency - it should merely be updated to
-#     reflect the processor speed set externally so that the code can use accurate
-#     software delays.
 F_CPU = 16000000
-
-#
-# LUFA specific
-#
-# Target architecture (see library "Board Types" documentation).
 ARCH = AVR8
-
-# Input clock frequency.
-#     This will define a symbol, F_USB, in all source code files equal to the
-#     input clock frequency (before any prescaling is performed) in Hz. This value may
-#     differ from F_CPU if prescaling is used on the latter, and is required as the
-#     raw input clock is fed directly to the PLL sections of the AVR for high speed
-#     clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'
-#     at the end, this will be done automatically to create a 32-bit value in your
-#     source code.
-#
-#     If no clock division is performed on the input clock inside the AVR (via the
-#     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
 F_USB = $(F_CPU)
-
-# Bootloader
-#     This definition is optional, and if your keyboard supports multiple bootloaders of
-#     different sizes, comment this out, and the correct address will be loaded 
-#     automatically (+60). See bootloader.mk for all options.
 BOOTLOADER = caterina
 
 # Interrupt driven control endpoint task(+60)
@@ -59,19 +17,17 @@ EXTRAKEY_ENABLE = yes       # Audio control and System control(+450)
 CONSOLE_ENABLE = no         # Console for debug(+400)
 COMMAND_ENABLE = yes        # Commands for debug and configuration
 NKRO_ENABLE = no            # Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
-BACKLIGHT_ENABLE = no      # Enable keyboard backlight functionality
+BACKLIGHT_ENABLE = yes      # Enable keyboard backlight functionality
 MIDI_ENABLE = no            # MIDI controls
 AUDIO_ENABLE = no           # Audio output on port C6
 UNICODE_ENABLE = no         # Unicode
 BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
-RGBLIGHT_ENABLE = no       # Enable WS2812 RGB underlight.  Do not enable this with audio at the same time.
-SUBPROJECT_rev1 = yes
-USE_I2C = yes
+RGBLIGHT_ENABLE = no        # Enable WS2812 RGB underlight. 
+
 # Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
 SLEEP_LED_ENABLE = no    # Breathing sleep LED during USB suspend
 
-CUSTOM_MATRIX = yes
+SPLIT_KEYBOARD = yes
 
 LAYOUTS = ortho_4x12
-
 DEFAULT_FOLDER = levinson/rev2
diff --git a/keyboards/levinson/serial.c b/keyboards/levinson/serial.c
deleted file mode 100644
index 74bcbb6bf..000000000
--- a/keyboards/levinson/serial.c
+++ /dev/null
@@ -1,228 +0,0 @@
-/*
- * WARNING: be careful changing this code, it is very timing dependent
- */
-
-#ifndef F_CPU
-#define F_CPU 16000000
-#endif
-
-#include <avr/io.h>
-#include <avr/interrupt.h>
-#include <util/delay.h>
-#include <stdbool.h>
-#include "serial.h"
-
-#ifndef USE_I2C
-
-// Serial pulse period in microseconds. Its probably a bad idea to lower this
-// value.
-#define SERIAL_DELAY 24
-
-uint8_t volatile serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH] = {0};
-uint8_t volatile serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH] = {0};
-
-#define SLAVE_DATA_CORRUPT (1<<0)
-volatile uint8_t status = 0;
-
-inline static
-void serial_delay(void) {
-  _delay_us(SERIAL_DELAY);
-}
-
-inline static
-void serial_output(void) {
-  SERIAL_PIN_DDR |= SERIAL_PIN_MASK;
-}
-
-// make the serial pin an input with pull-up resistor
-inline static
-void serial_input(void) {
-  SERIAL_PIN_DDR  &= ~SERIAL_PIN_MASK;
-  SERIAL_PIN_PORT |= SERIAL_PIN_MASK;
-}
-
-inline static
-uint8_t serial_read_pin(void) {
-  return !!(SERIAL_PIN_INPUT & SERIAL_PIN_MASK);
-}
-
-inline static
-void serial_low(void) {
-  SERIAL_PIN_PORT &= ~SERIAL_PIN_MASK;
-}
-
-inline static
-void serial_high(void) {
-  SERIAL_PIN_PORT |= SERIAL_PIN_MASK;
-}
-
-void serial_master_init(void) {
-  serial_output();
-  serial_high();
-}
-
-void serial_slave_init(void) {
-  serial_input();
-
-  // Enable INT0
-  EIMSK |= _BV(INT0);
-  // Trigger on falling edge of INT0
-  EICRA &= ~(_BV(ISC00) | _BV(ISC01));
-}
-
-// Used by the master to synchronize timing with the slave.
-static
-void sync_recv(void) {
-  serial_input();
-  // This shouldn't hang if the slave disconnects because the
-  // serial line will float to high if the slave does disconnect.
-  while (!serial_read_pin());
-  serial_delay();
-}
-
-// Used by the slave to send a synchronization signal to the master.
-static
-void sync_send(void) {
-  serial_output();
-
-  serial_low();
-  serial_delay();
-
-  serial_high();
-}
-
-// Reads a byte from the serial line
-static
-uint8_t serial_read_byte(void) {
-  uint8_t byte = 0;
-  serial_input();
-  for ( uint8_t i = 0; i < 8; ++i) {
-    byte = (byte << 1) | serial_read_pin();
-    serial_delay();
-    _delay_us(1);
-  }
-
-  return byte;
-}
-
-// Sends a byte with MSB ordering
-static
-void serial_write_byte(uint8_t data) {
-  uint8_t b = 8;
-  serial_output();
-  while( b-- ) {
-    if(data & (1 << b)) {
-      serial_high();
-    } else {
-      serial_low();
-    }
-    serial_delay();
-  }
-}
-
-// interrupt handle to be used by the slave device
-ISR(SERIAL_PIN_INTERRUPT) {
-  sync_send();
-
-  uint8_t checksum = 0;
-  for (int i = 0; i < SERIAL_SLAVE_BUFFER_LENGTH; ++i) {
-    serial_write_byte(serial_slave_buffer[i]);
-    sync_send();
-    checksum += serial_slave_buffer[i];
-  }
-  serial_write_byte(checksum);
-  sync_send();
-
-  // wait for the sync to finish sending
-  serial_delay();
-
-  // read the middle of pulses
-  _delay_us(SERIAL_DELAY/2);
-
-  uint8_t checksum_computed = 0;
-  for (int i = 0; i < SERIAL_MASTER_BUFFER_LENGTH; ++i) {
-    serial_master_buffer[i] = serial_read_byte();
-    sync_send();
-    checksum_computed += serial_master_buffer[i];
-  }
-  uint8_t checksum_received = serial_read_byte();
-  sync_send();
-
-  serial_input(); // end transaction
-
-  if ( checksum_computed != checksum_received ) {
-    status |= SLAVE_DATA_CORRUPT;
-  } else {
-    status &= ~SLAVE_DATA_CORRUPT;
-  }
-}
-
-inline
-bool serial_slave_DATA_CORRUPT(void) {
-  return status & SLAVE_DATA_CORRUPT;
-}
-
-// Copies the serial_slave_buffer to the master and sends the
-// serial_master_buffer to the slave.
-//
-// Returns:
-// 0 => no error
-// 1 => slave did not respond
-int serial_update_buffers(void) {
-  // this code is very time dependent, so we need to disable interrupts
-  cli();
-
-  // signal to the slave that we want to start a transaction
-  serial_output();
-  serial_low();
-  _delay_us(1);
-
-  // wait for the slaves response
-  serial_input();
-  serial_high();
-  _delay_us(SERIAL_DELAY);
-
-  // check if the slave is present
-  if (serial_read_pin()) {
-    // slave failed to pull the line low, assume not present
-    sei();
-    return 1;
-  }
-
-  // if the slave is present syncronize with it
-  sync_recv();
-
-  uint8_t checksum_computed = 0;
-  // receive data from the slave
-  for (int i = 0; i < SERIAL_SLAVE_BUFFER_LENGTH; ++i) {
-    serial_slave_buffer[i] = serial_read_byte();
-    sync_recv();
-    checksum_computed += serial_slave_buffer[i];
-  }
-  uint8_t checksum_received = serial_read_byte();
-  sync_recv();
-
-  if (checksum_computed != checksum_received) {
-    sei();
-    return 1;
-  }
-
-  uint8_t checksum = 0;
-  // send data to the slave
-  for (int i = 0; i < SERIAL_MASTER_BUFFER_LENGTH; ++i) {
-    serial_write_byte(serial_master_buffer[i]);
-    sync_recv();
-    checksum += serial_master_buffer[i];
-  }
-  serial_write_byte(checksum);
-  sync_recv();
-
-  // always, release the line when not in use
-  serial_output();
-  serial_high();
-
-  sei();
-  return 0;
-}
-
-#endif
diff --git a/keyboards/levinson/serial.h b/keyboards/levinson/serial.h
deleted file mode 100644
index 15fe4db7b..000000000
--- a/keyboards/levinson/serial.h
+++ /dev/null
@@ -1,26 +0,0 @@
-#ifndef MY_SERIAL_H
-#define MY_SERIAL_H
-
-#include "config.h"
-#include <stdbool.h>
-
-/* TODO:  some defines for interrupt setup */
-#define SERIAL_PIN_DDR DDRD
-#define SERIAL_PIN_PORT PORTD
-#define SERIAL_PIN_INPUT PIND
-#define SERIAL_PIN_MASK _BV(PD0)
-#define SERIAL_PIN_INTERRUPT INT0_vect
-
-#define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2
-#define SERIAL_MASTER_BUFFER_LENGTH 1
-
-// Buffers for master - slave communication
-extern volatile uint8_t serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH];
-extern volatile uint8_t serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH];
-
-void serial_master_init(void);
-void serial_slave_init(void);
-int serial_update_buffers(void);
-bool serial_slave_data_corrupt(void);
-
-#endif
diff --git a/keyboards/levinson/split_util.c b/keyboards/levinson/split_util.c
deleted file mode 100644
index 7f200e6c9..000000000
--- a/keyboards/levinson/split_util.c
+++ /dev/null
@@ -1,86 +0,0 @@
-#include <avr/io.h>
-#include <avr/wdt.h>
-#include <avr/power.h>
-#include <avr/interrupt.h>
-#include <util/delay.h>
-#include <avr/eeprom.h>
-#include "split_util.h"
-#include "matrix.h"
-#include "keyboard.h"
-#include "config.h"
-#include "timer.h"
-
-#ifdef USE_I2C
-#  include "i2c.h"
-#else
-#  include "serial.h"
-#endif
-
-volatile bool isLeftHand = true;
-
-static void setup_handedness(void) {
-  #ifdef EE_HANDS
-    isLeftHand = eeprom_read_byte(EECONFIG_HANDEDNESS);
-  #else
-    // I2C_MASTER_RIGHT is deprecated, use MASTER_RIGHT instead, since this works for both serial and i2c
-    #if defined(I2C_MASTER_RIGHT) || defined(MASTER_RIGHT)
-      isLeftHand = !has_usb();
-    #else
-      isLeftHand = has_usb();
-    #endif
-  #endif
-}
-
-static void keyboard_master_setup(void) {
-#ifdef USE_I2C
-    i2c_master_init();
-#ifdef SSD1306OLED
-    matrix_master_OLED_init();
-#endif
-#else
-    serial_master_init();
-#endif
-}
-
-static void keyboard_slave_setup(void) {
-  timer_init();
-#ifdef USE_I2C
-    i2c_slave_init(SLAVE_I2C_ADDRESS);
-#else
-    serial_slave_init();
-#endif
-}
-
-bool has_usb(void) {
-   USBCON |= (1 << OTGPADE); //enables VBUS pad
-   _delay_us(5);
-   return (USBSTA & (1<<VBUS));  //checks state of VBUS
-}
-
-void split_keyboard_setup(void) {
-   setup_handedness();
-
-   if (has_usb()) {
-      keyboard_master_setup();
-   } else {
-      keyboard_slave_setup();
-   }
-   sei();
-}
-
-void keyboard_slave_loop(void) {
-   matrix_init();
-
-   while (1) {
-      matrix_slave_scan();
-   }
-}
-
-// this code runs before the usb and keyboard is initialized
-void matrix_setup(void) {
-    split_keyboard_setup();
-
-    if (!has_usb()) {
-        keyboard_slave_loop();
-    }
-}
diff --git a/keyboards/levinson/split_util.h b/keyboards/levinson/split_util.h
deleted file mode 100644
index 595a0659e..000000000
--- a/keyboards/levinson/split_util.h
+++ /dev/null
@@ -1,20 +0,0 @@
-#ifndef SPLIT_KEYBOARD_UTIL_H
-#define SPLIT_KEYBOARD_UTIL_H
-
-#include <stdbool.h>
-#include "eeconfig.h"
-
-#define SLAVE_I2C_ADDRESS           0x32
-
-extern volatile bool isLeftHand;
-
-// slave version of matix scan, defined in matrix.c
-void matrix_slave_scan(void);
-
-void split_keyboard_setup(void);
-bool has_usb(void);
-void keyboard_slave_loop(void);
-
-void matrix_master_OLED_init (void);
-
-#endif