Keyboard: add 5x5 board support (#3694)

* 5x5 board support

* 5x5 work

* 5x5board config

* add 5x5 board support

8 files changed, 535 insertions, 0 deletions

diff --git a/keyboards/5x5/5x5.c b/keyboards/5x5/5x5.c
new file mode 100644
index 000000000..20e524609
--- /dev/null
+++ b/keyboards/5x5/5x5.c
@@ -0,0 +1,29 @@
+
+#include "5x5.h"
+
+void matrix_init_kb(void) {
+        // put your keyboard start-up code here
+        // runs once when the firmware starts up
+
+        matrix_init_user();
+}
+
+void matrix_scan_kb(void) {
+        // put your looping keyboard code here
+        // runs every cycle (a lot)
+
+        matrix_scan_user();
+}
+
+bool process_record_kb(uint16_t keycode, keyrecord_t *record) {
+        // put your per-action keyboard code here
+        // runs for every action, just before processing by the firmware
+
+        return process_record_user(keycode, record);
+}
+
+void led_set_kb(uint8_t usb_led) {
+        // put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
+
+        led_set_user(usb_led);
+}
diff --git a/keyboards/5x5/5x5.h b/keyboards/5x5/5x5.h
new file mode 100644
index 000000000..cbfc28a90
--- /dev/null
+++ b/keyboards/5x5/5x5.h
@@ -0,0 +1,57 @@
+
+#ifndef FIVEX5_H
+#define FIVEX5_H
+
+#include "quantum.h"
+#define ___ KC_NO
+
+// This a shortcut to help you visually see your layout.
+// The first section contains all of the arguments
+// The second converts the arguments into a two-dimensional array
+
+#define LAYOUT_ortho_5x5( \
+    K00, K01, K02, K03, K04, \
+    K10, K11, K12, K13, K14, \
+    K20, K21, K22, K23, K24, \
+    K30, K31, K32, K33, K34, \
+    K40, K41, K42, K43, K44 \
+) \
+{ \
+    { K00, K01, K02, K03, K04, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___}, \
+    { K10, K11, K12, K13, K14, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___}, \
+    { K20, K21, K22, K23, K24, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___}, \
+    { K30, K31, K32, K33, K34, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___}, \
+    { K40, K41, K42, K43, K44, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___} \
+}
+
+#define LAYOUT_ortho_5x10( \
+    K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, \
+    K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, \
+    K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, \
+    K30, K31, K32, K33, K34, K35, K36, K37, K38, K39, \
+    K40, K41, K42, K43, K44, K45, K46, K47, K48, K49 \
+) \
+{ \
+    { K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, ___, ___, ___, ___, ___}, \
+    { K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, ___, ___, ___, ___, ___}, \
+    { K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, ___, ___, ___, ___, ___}, \
+    { K30, K31, K32, K33, K34, K35, K35, K37, K38, K39, ___, ___, ___, ___, ___}, \
+    { K40, K41, K42, K43, K44, K45, K46, K47, K48, K49, ___, ___, ___, ___, ___} \
+}
+
+#define LAYOUT_ortho_5x15( \
+    K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0a, K0b, K0c, K0d, K0e, \
+    K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1a, K1b, K1c, K1d, K1e, \
+    K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, K2a, K2b, K2c, K2d, K2e, \
+    K30, K31, K32, K33, K34, K35, K36, K37, K38, K39, K3a, K3b, K3c, K3d, K3e, \
+    K40, K41, K42, K43, K44, K45, K46, K47, K48, K49, K4a, K4b, K4c, K4d, K4e \
+) \
+{ \
+    { K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0a, K0b, K0c, K0d, K0e}, \
+    { K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1a, K1b, K1c, K1d, K1e}, \
+    { K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, K2a, K2b, K2c, K2d, K2e}, \
+    { K30, K31, K32, K33, K34, K35, K35, K37, K38, K39, K3a, K3b, K3c, K3d, K3e}, \
+    { K40, K41, K42, K43, K44, K45, K46, K47, K48, K49, K4a, K4b, K4c, K4d, K4e} \
+}
+
+#endif
diff --git a/keyboards/5x5/config.h b/keyboards/5x5/config.h
new file mode 100644
index 000000000..bc609934e
--- /dev/null
+++ b/keyboards/5x5/config.h
@@ -0,0 +1,208 @@
+
+
+#pragma once
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0xFEED
+#define PRODUCT_ID      0x0A0C
+#define DEVICE_VER      0x05B5
+#define MANUFACTURER    di0ib
+#define PRODUCT         The 5x5 Keyboard
+#define DESCRIPTION     A 25 or 50 or 75 key keyboard
+
+/* key matrix size */
+#define MATRIX_ROWS 5
+#define MATRIX_COLS 15
+
+/*
+ * 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 { B2, D1, D0, D4, C6 }
+#define MATRIX_COL_PINS { D7, E6, B4, B5, B6, B7, D6, F7, F6, F5, F4, F1, F0, B3, B1 }
+#define UNUSED_PINS
+
+/* COL2ROW, ROW2COL, or CUSTOM_MATRIX */
+#define DIODE_DIRECTION COL2ROW
+
+// #define BACKLIGHT_PIN B7
+// #define BACKLIGHT_BREATHING
+// #define BACKLIGHT_LEVELS 3
+
+// #define RGB_DI_PIN E2
+// #ifdef RGB_DI_PIN
+// #define RGBLIGHT_ANIMATIONS
+// #define RGBLED_NUM 16
+// #define RGBLIGHT_HUE_STEP 8
+// #define RGBLIGHT_SAT_STEP 8
+// #define RGBLIGHT_VAL_STEP 8
+// #endif
+
+/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
+#define DEBOUNCING_DELAY 5
+
+/* define if matrix has ghost (lacks anti-ghosting diodes) */
+//#define MATRIX_HAS_GHOST
+
+/* number of backlight levels */
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
+
+/* If defined, GRAVE_ESC will always act as ESC when CTRL is held.
+ * This is userful for the Windows task manager shortcut (ctrl+shift+esc).
+ */
+// #define GRAVE_ESC_CTRL_OVERRIDE
+
+/*
+ * Force NKRO
+ *
+ * Force NKRO (nKey Rollover) to be enabled by default, regardless of the saved
+ * state in the bootmagic EEPROM settings. (Note that NKRO must be enabled in the
+ * makefile for this to work.)
+ *
+ * If forced on, NKRO can be disabled via magic key (default = LShift+RShift+N)
+ * until the next keyboard reset.
+ *
+ * NKRO may prevent your keystrokes from being detected in the BIOS, but it is
+ * fully operational during normal computer usage.
+ *
+ * For a less heavy-handed approach, enable NKRO via magic key (LShift+RShift+N)
+ * or via bootmagic (hold SPACE+N while plugging in the keyboard). Once set by
+ * bootmagic, NKRO mode will always be enabled until it is toggled again during a
+ * power-up.
+ *
+ */
+//#define FORCE_NKRO
+
+/*
+ * Magic Key Options
+ *
+ * Magic keys are hotkey commands that allow control over firmware functions of
+ * the keyboard. They are best used in combination with the HID Listen program,
+ * found here: https://www.pjrc.com/teensy/hid_listen.html
+ *
+ * The options below allow the magic key functionality to be changed. This is
+ * useful if your keyboard/keypad is missing keys and you want magic key support.
+ *
+ */
+
+/* key combination for magic key command */
+#define IS_COMMAND() ( \
+    keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
+)
+
+/* control how magic key switches layers */
+//#define MAGIC_KEY_SWITCH_LAYER_WITH_FKEYS  true
+//#define MAGIC_KEY_SWITCH_LAYER_WITH_NKEYS  true
+//#define MAGIC_KEY_SWITCH_LAYER_WITH_CUSTOM false
+
+/* override magic key keymap */
+//#define MAGIC_KEY_SWITCH_LAYER_WITH_FKEYS
+//#define MAGIC_KEY_SWITCH_LAYER_WITH_NKEYS
+//#define MAGIC_KEY_SWITCH_LAYER_WITH_CUSTOM
+//#define MAGIC_KEY_HELP1          H
+//#define MAGIC_KEY_HELP2          SLASH
+//#define MAGIC_KEY_DEBUG          D
+//#define MAGIC_KEY_DEBUG_MATRIX   X
+//#define MAGIC_KEY_DEBUG_KBD      K
+//#define MAGIC_KEY_DEBUG_MOUSE    M
+//#define MAGIC_KEY_VERSION        V
+//#define MAGIC_KEY_STATUS         S
+//#define MAGIC_KEY_CONSOLE        C
+//#define MAGIC_KEY_LAYER0_ALT1    ESC
+//#define MAGIC_KEY_LAYER0_ALT2    GRAVE
+//#define MAGIC_KEY_LAYER0         0
+//#define MAGIC_KEY_LAYER1         1
+//#define MAGIC_KEY_LAYER2         2
+//#define MAGIC_KEY_LAYER3         3
+//#define MAGIC_KEY_LAYER4         4
+//#define MAGIC_KEY_LAYER5         5
+//#define MAGIC_KEY_LAYER6         6
+//#define MAGIC_KEY_LAYER7         7
+//#define MAGIC_KEY_LAYER8         8
+//#define MAGIC_KEY_LAYER9         9
+//#define MAGIC_KEY_BOOTLOADER     PAUSE
+//#define MAGIC_KEY_LOCK           CAPS
+//#define MAGIC_KEY_EEPROM         E
+//#define MAGIC_KEY_NKRO           N
+//#define MAGIC_KEY_SLEEP_LED      Z
+
+/*
+ * 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
+
+/*
+ * 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 1
+
+/*
+ * HD44780 LCD Display Configuration
+ */
+/*
+#define LCD_LINES           2     //< number of visible lines of the display
+#define LCD_DISP_LENGTH    16     //< visibles characters per line of the display
+
+#define LCD_IO_MODE      1            //< 0: memory mapped mode, 1: IO port mode
+
+#if LCD_IO_MODE
+#define LCD_PORT         PORTB        //< port for the LCD lines
+#define LCD_DATA0_PORT   LCD_PORT     //< port for 4bit data bit 0
+#define LCD_DATA1_PORT   LCD_PORT     //< port for 4bit data bit 1
+#define LCD_DATA2_PORT   LCD_PORT     //< port for 4bit data bit 2
+#define LCD_DATA3_PORT   LCD_PORT     //< port for 4bit data bit 3
+#define LCD_DATA0_PIN    4            //< pin for 4bit data bit 0
+#define LCD_DATA1_PIN    5            //< pin for 4bit data bit 1
+#define LCD_DATA2_PIN    6            //< pin for 4bit data bit 2
+#define LCD_DATA3_PIN    7            //< pin for 4bit data bit 3
+#define LCD_RS_PORT      LCD_PORT     //< port for RS line
+#define LCD_RS_PIN       3            //< pin  for RS line
+#define LCD_RW_PORT      LCD_PORT     //< port for RW line
+#define LCD_RW_PIN       2            //< pin  for RW line
+#define LCD_E_PORT       LCD_PORT     //< port for Enable line
+#define LCD_E_PIN        1            //< pin  for Enable line
+#endif
+*/
diff --git a/keyboards/5x5/info.json b/keyboards/5x5/info.json
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/keyboards/5x5/info.json
diff --git a/keyboards/5x5/keymaps/default/config.h b/keyboards/5x5/keymaps/default/config.h
new file mode 100644
index 000000000..d533d806c
--- /dev/null
+++ b/keyboards/5x5/keymaps/default/config.h
@@ -0,0 +1,5 @@
+
+
+#pragma once
+
+// place overrides here
diff --git a/keyboards/5x5/keymaps/default/keymap.c b/keyboards/5x5/keymaps/default/keymap.c
new file mode 100644
index 000000000..a2c525d08
--- /dev/null
+++ b/keyboards/5x5/keymaps/default/keymap.c
@@ -0,0 +1,139 @@
+
+#include QMK_KEYBOARD_H
+
+#define PAD 0
+#define _QW 1
+#define NUM 2
+#define DIR 3
+
+// Readability keycodes
+#define _______ KC_TRNS
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Single 5x5 board only
+ * .--------------------------------------------.
+ * | QWERTY |   /    |   *    |   -    |        |
+ * |--------+--------+--------+--------+--------|
+ * |   7    |   8    |   9    |   +    |        |
+ * |--------+--------+--------+--------+--------|
+ * |   4    |   5    |   6    |   +    |        |
+ * |--------+--------+--------+--------+--------|
+ * |   1    |   2    |   3    | ENTER  |        |
+ * |--------+--------+--------+--------+--------|
+ * |   0    |   0    |   .    | ENTER  |        |
+ * '--------------------------------------------'
+ */
+
+  [PAD] = LAYOUT_ortho_5x5(
+  DF(_QW), KC_PSLS, KC_PAST,   KC_PMNS, _______,
+  KC_KP_7, KC_KP_8, KC_KP_9,   KC_PPLS, _______,
+  KC_KP_4, KC_KP_5, KC_KP_6,   KC_PPLS, _______,
+  KC_KP_1, KC_KP_2, KC_KP_3,   KC_PENT, _______,
+  KC_KP_0, KC_KP_0, KC_KP_DOT, KC_PENT, _______
+  ),
+
+/* QWERTY
+ * .--------------------------------------------------------------------------------------------------------------------------------------.
+ * |        | 1      | 2      | 3      | 4      | 5      | 6      | 7      | 8      | 9      | 0      |        |        |        |        |
+ * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+ * | ESC    | Q      | W      | E      | R      | T      | Y      | U      | I      | O      | P      | BACKSP |   7    |   8    |   9    |
+ * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+ * | TAB    | A      | S      | D      | F      | G      | H      | J      | K      | L      | ;      | '      |   4    |   5    |   6    |
+ * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+ * | SHIFT  | Z      | X      | C      | V      | B      | N      | M      | ,      | .      | /      | ENT/SFT|   1    |   2    |   3    |
+ * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+ * | LCTRL  | LGUI   | ALT    | ALT    | NUM    | SHIFT  | SPACE  | DIR    | RGUI   | RALT   | DEL    | CTRL   |   0    |   0    |   .    |
+ * '--------------------------------------------------------------------------------------------------------------------------------------'
+ */
+
+  [_QW] = LAYOUT_ortho_5x15(
+  _______, KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    _______, _______, _______, _______,
+  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_KP_7, KC_KP_8, KC_KP_9,
+  KC_TAB,  KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT, KC_KP_4, KC_KP_5, KC_KP_6,
+  KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, SFT_T(KC_ENT), KC_KP_1, KC_KP_2, KC_KP_3,
+  KC_LCTL, KC_LGUI, KC_LALT, KC_LALT, MO(NUM), KC_LSFT, KC_SPC,  MO(DIR), KC_RGUI, KC_RALT, KC_DEL,  KC_RCTL, KC_KP_0, KC_KP_0, KC_KP_DOT
+  ),
+
+/* NUMBERS
+ * .--------------------------------------------------------------------------------------------------------------------------------------.
+ * |        |        |        |        |        |        |        |        |        |        |        |        |        |        |        |
+ * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+ * |        | F1     | F2     | F3     | F4     | F5     | F6     | F7     | F8     | F9     | F10    | NUMLOCK|   /    |   *    |   -    |
+ * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+ * |    `   | 1      | 2      | 3      | 4      | 5      | 6      | 7      | 8      | 9      | 0      |        |        |        |   +    |
+ * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+ * |        | F11    | F12    |        |        |        | ENTER  | SHIFT  | RGUI   | ./ALT  | BKSC   |        |        |        | ENTER  |
+ * |        |        |        |        |        |        |        |        |        |        |CTRLhold|              |        |        |        |
+ * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+ * |        |        |        |        |        |        | ENTER  | SHIFT  |        |        |        |        |        |        |        |
+ * '--------------------------------------------------------------------------------------------------------------------------------------'
+ */
+
+  [NUM] = LAYOUT_ortho_5x15(
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,  _______, _______, _______, _______,
+  _______, KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,   KC_NLCK, KC_PSLS, KC_PAST, KC_PMNS,
+  KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,     _______, _______, _______, KC_PPLS,
+  _______, KC_F11,  KC_F12,  KC_TRNS, KC_TRNS, KC_TRNS, KC_ENT,  KC_RSFT, KC_RGUI, ALT_T(KC_DOT), CTL_T(KC_BSPC), _______, _______, _______, KC_PENT,
+  _______, _______, _______, _______, _______, _______, KC_ENT,  KC_RSFT, _______, _______, _______,  _______, _______, _______, _______
+  ),
+
+/* DIRECTIONS
+ * .--------------------------------------------------------------------------------------------------------------------------------------.
+ * |        |        |        |        |        |        |        |        |        |        |        |        |        |        |        |
+ * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+ * | RESET  | TAB    |   up   |        | INS    | CTRL   | SHIFT  | PgUp   | Home   |   -    |   =    |  DEL   |        |        |        |
+ * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+ * | CAPSLK | left   |  down  | right  | PrScr  | SHIFT  | CTRL   | PgDn   | End    |   [    |   ]    |   \    |        |        |        |
+ * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+ * |        | P-Brk  |        |        |        |        |        |        | RGUI   | ALT    |        |        |        |        |        |
+ * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+ * | KEYPAD |        |        |        |        |        |        |        |        |        |        |        |        |        |        |
+ * '--------------------------------------------------------------------------------------------------------------------------------------'
+ */
+
+  [DIR] = LAYOUT_ortho_5x15(
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+  RESET,   KC_TAB,  KC_UP,   _______, KC_INS,  KC_LCTL, KC_LSFT, KC_PGUP, KC_HOME, KC_MINS, KC_EQL,  KC_DEL,  _______, _______, _______,
+  KC_CAPS, KC_LEFT, KC_DOWN, KC_RGHT, KC_PSCR, KC_LSFT, KC_LCTL, KC_PGDN, KC_END,  KC_LBRC, KC_RBRC, KC_BSLS, _______, _______, _______,
+  _______, KC_PAUS, _______, _______, _______, _______, _______, _______, KC_RGUI, KC_RALT, _______, _______, _______, _______, _______,
+  DF(PAD), _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
+  ),
+
+};
+
+const uint16_t PROGMEM fn_actions[] = {
+
+};
+
+const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
+{
+  // MACRODOWN only works in this function
+      switch(id) {
+        case 0:
+          if (record->event.pressed) {
+            register_code(KC_RSFT);
+          } else {
+            unregister_code(KC_RSFT);
+          }
+        break;
+      }
+    return MACRO_NONE;
+};
+
+
+void matrix_init_user(void) {
+
+}
+
+void matrix_scan_user(void) {
+
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  return true;
+}
+
+void led_set_user(uint8_t usb_led) {
+
+}
diff --git a/keyboards/5x5/readme.md b/keyboards/5x5/readme.md
new file mode 100644
index 000000000..e25535968
--- /dev/null
+++ b/keyboards/5x5/readme.md
@@ -0,0 +1,23 @@
+# 5x5
+
+![5x5](https://3.bp.blogspot.com/-bKOfUyMtdrE/WqGA_03kGZI/AAAAAAACPtY/DsHDTQS0IlMD3ie8HHlf1ATRUAwpZdcSgCLcBGAs/s1600/c.jpg)  
+===  
+
+**Modular Keypad/Keyboard**  
+The basic unit is a 5x5 matrix with 25 keys. Up to 3 of these can be connected to each other side by side.  
+5x5, 5x10, and 5x15 matrices are possible.  
+There are pads for header pins on each side that complete the circuits from board to board. These can be permanently connected with solder bridges or temporarily with pin headers and shunt jumpers.  
+**_All configurations are powered by a SINGLE Arduino Micro or clone (NOT a Pro Micro)._**  
+
+* [The original TMK firmware](https://github.com/di0ib/tmk_keyboard/tree/master/keyboard/5x5)
+
+Keyboard Maintainer: QMK Community  
+Hardware Supported: 5x5 PCB   
+Hardware Availability: [5x5 project on 40% Keyboards](http://www.40percent.club/2018/04/5x5.html)  
+
+Make example for this keyboard (after setting up your build environment):
+
+    make 5x5:default
+
+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.    
+First pass at adding support for the 4x4 keyboard. Compiles but completely untested. Intended to kick-start development.  
diff --git a/keyboards/5x5/rules.mk b/keyboards/5x5/rules.mk
new file mode 100644
index 000000000..b04e4a527
--- /dev/null
+++ b/keyboards/5x5/rules.mk
@@ -0,0 +1,74 @@
+# MCU name
+#MCU = at90usb1286
+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)
+
+# Interrupt driven control endpoint task(+60)
+OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
+
+# Boot Section Size in *bytes*
+#   Teensy halfKay   512
+#   Teensy++ halfKay 1024
+#   Atmel DFU loader 4096
+#   LUFA bootloader  4096
+#   USBaspLoader     2048
+OPT_DEFS += -DBOOTLOADER_SIZE=4096
+
+# 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
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = no      # Virtual DIP switch configuration(+1000)
+MOUSEKEY_ENABLE = yes       # Mouse keys(+4700)
+EXTRAKEY_ENABLE = yes       # Audio control and System control(+450)
+CONSOLE_ENABLE = yes        # Console for debug(+400)
+COMMAND_ENABLE = yes        # Commands for debug and configuration
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
+# if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+NKRO_ENABLE = no            # USB Nkey Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard RGB underglow
+MIDI_ENABLE = no            # MIDI support (+2400 to 4200, depending on config)
+UNICODE_ENABLE = no         # Unicode
+BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
+AUDIO_ENABLE = no           # Audio output on port C6
+FAUXCLICKY_ENABLE = no      # Use buzzer to emulate clicky switches
+HD44780_ENABLE = no             # Enable support for HD44780 based LCDs (+400)
+
+LAYOUT = ortho_5x5  ortho_5x10  ortho_5x15