[Keyboard] Add k34 keyboard (#15250)

Co-authored-by: Ryan <fauxpark@gmail.com>
Co-authored-by: jingpingw <jingpingw@twitter.com>

keyboards/k34/keymaps/default/config.h

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+ /* Copyright Wong Jing Ping <@wongjingping>
+  *  
+  * 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. 
+  * 
+  */
+
+#pragma once
+
+// use 1 combo
+#define COMBO_COUNT 1
+#define COMBO_TERM 300
+
+// mod taps for home row mods
+#define TAPPING_TERM_PER_KEY
+#define IGNORE_MOD_TAP_INTERRUPT
+

keyboards/k34/keymaps/default/keymap.c

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+// Copyright 2021 jp_smasher (@jp_smasher)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include QMK_KEYBOARD_H
+
+// Defines names for use in layer keycodes and the keymap
+enum layer_names {
+    _BASE,
+    _L1,
+    _L2
+};
+
+// define layers
+#define L1  MO(_L1)
+#define L2  LT(_L2, KC_ENT)
+
+// define home-row styled alpha-mods
+#define C_C     LCTL_T(KC_C)
+#define C_COMM  LCTL_T(KC_COMM)
+#define G_A     CMD_T(KC_A)
+#define G_SC    CMD_T(KC_SCLN)
+#define A_X     LOPT_T(KC_X)
+#define A_DOT   LOPT_T(KC_DOT)
+#define S_Z     SFT_T(KC_Z)
+#define S_SLSH  SFT_T(KC_SLSH)
+
+// combos for application shortcuts
+#define SG_LBRC SGUI(KC_LBRC)
+#define SG_RBRC SGUI(KC_RBRC)
+#define G_LBRC  G(KC_LBRC)
+#define G_RBRC  G(KC_RBRC)
+#define A_SLSH  A(KC_SLSH)
+
+/* combos */
+const uint16_t PROGMEM jk_combo[] = {KC_J, KC_K, COMBO_END};
+combo_t key_combos[COMBO_COUNT] = {COMBO(jk_combo, KC_ESC)};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    /* Base */
+  [_BASE] = LAYOUT(
+    KC_Q,     KC_W,     KC_E,     KC_R,      KC_T,               KC_Y,     KC_U,     KC_I,     KC_O,     KC_P,
+    G_A,      KC_S,     KC_D,     KC_F,      KC_G,               KC_H,     KC_J,     KC_K,     KC_L,     G_SC,
+    S_Z,      A_X,      C_C,      KC_V,      KC_B,               KC_N,     KC_M,     C_COMM,   A_DOT,    S_SLSH,
+				  L1,        KC_SPC,             KC_SPC,   L2
+  ),
+
+
+  [_L1] = LAYOUT(
+    KC_EXLM,  KC_AT,    KC_HASH,  KC_DLR,   KC_PERC,            KC_CIRC,  KC_AMPR,  KC_ASTR,  KC_MINS,  KC_EQL,
+    KC_LPRN,  KC_RPRN,  KC_LCBR,  KC_RCBR,  KC_GRV,             KC_QUOT,  KC_LBRC,  KC_RBRC,  KC_BSLS,  KC_PIPE,
+    _______,  _______,  _______,  KC_TAB,   _______,            KC_MUTE,  KC_VOLD,  KC_VOLU,  KC_MPLY,  KC_MNXT,
+				  _______,  _______,            _______,  _______
+  ),
+
+  [_L2] = LAYOUT(
+    KC_1,     KC_2,     KC_3,     KC_4,      KC_5,               KC_6,     KC_7,     KC_8,    KC_9,     KC_0,
+    _______,  _______,  _______,  _______,   KC_DOT,             KC_LEFT,  KC_DOWN,  KC_UP,   KC_RIGHT, KC_BSPC,
+    _______,  _______,  _______,  _______,   _______,            A_SLSH,   SG_LBRC,  SG_RBRC, G_LBRC,   G_RBRC,
+				  KC_LALT,  KC_LGUI,             _______,    _______
+  ),
+};

keyboards/k34/keymaps/default/readme.md

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+# The default keymap for k34

keyboards/k34/keymaps/default/rules.mk

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+COMBO_ENABLE = yes          # enable combo