[Keyboard] Add k34 keyboard (#15250)

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

keyboards/k34/config.h

@@ -0,0 +1,38 @@
+// Copyright 2021 jp_smasher (@jp_smasher)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID    0xFEED
+#define PRODUCT_ID   0x0000
+#define DEVICE_VER   0x0001
+#define MANUFACTURER jp_smasher
+#define PRODUCT      k34
+
+/* key matrix size */
+#define MATRIX_ROWS 4
+#define MATRIX_COLS 10
+
+/*
+ * Keyboard Matrix Assignments
+ *
+ * Change this to how you wired your keyboard
+ * COLS: AVR pins used for columns, left to right
+ * ROWS: AVR pins used for rows, top to bottom
+ * DIODE_DIRECTION: COL2ROW = COL = Anode (+), ROW = Cathode (-, marked on diode)
+ *                  ROW2COL = ROW = Anode (+), COL = Cathode (-, marked on diode)
+ *
+ */
+#define MATRIX_ROW_PINS { F4, B2, E6, B4 }
+#define MATRIX_COL_PINS { D1, D0, D4, C6, D7, F5, F6, F7, B1, B3 }
+#define UNUSED_PINS { B5, B6, D2, D3 }
+
+/* COL2ROW, ROW2COL */
+#define DIODE_DIRECTION COL2ROW
+
+/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
+#define DEBOUNCE 5
+