[Keyboard] add jotanck keyboard (#5192)

* add jotanck keyboard

* Update keyboards/jotanck/config.h

Co-Authored-By: jotix <47826561+jotix@users.noreply.github.com>

* Update keyboards/jotanck/config.h

Co-Authored-By: jotix <47826561+jotix@users.noreply.github.com>

* Update keyboards/jotanck/config.h

Co-Authored-By: jotix <47826561+jotix@users.noreply.github.com>

* Update keyboards/jotanck/config.h

Co-Authored-By: jotix <47826561+jotix@users.noreply.github.com>

* Update keyboards/jotanck/jotanck.h

Co-Authored-By: jotix <47826561+jotix@users.noreply.github.com>

* Update keyboards/jotanck/jotanck.h

Co-Authored-By: jotix <47826561+jotix@users.noreply.github.com>

* Update keyboards/jotanck/jotanck.h

Co-Authored-By: jotix <47826561+jotix@users.noreply.github.com>

* requested changes

* Update keyboards/handwired/jotanck/readme.md

Co-Authored-By: jotix <47826561+jotix@users.noreply.github.com>

* add backlight support

* add default keymap image to readme

* add default keymap image to readme

6 files changed, 279 insertions, 0 deletions

diff --git a/keyboards/handwired/jotanck/config.h b/keyboards/handwired/jotanck/config.h
new file mode 100644
index 0000000000..7e022eeb02
--- /dev/null
+++ b/keyboards/handwired/jotanck/config.h
@@ -0,0 +1,37 @@
+#pragma once
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0xFEED
+#define PRODUCT_ID      0x6060
+#define DEVICE_VER      0x0001
+#define MANUFACTURER    Jotix
+#define PRODUCT         Jotanck
+#define DESCRIPTION     A Jotantastic compact ortholinear keyboard
+
+/* key matrix size */
+#define MATRIX_ROWS 4
+#define MATRIX_COLS 12
+
+/* pro_micro pin-out */
+#define MATRIX_ROW_PINS { B4, B5, B6, B2 }
+#define MATRIX_COL_PINS { F4, F5, F6, F7, B1, B3, D3, D2, D1, D0, D4, C6 }
+#define UNUSED_PINS
+
+/* leds */
+#define QMK_LED E6
+#define BACKLIGHT_LEVELS 3
+#define BACKLIGHT_PIN B7
+
+/* COL2ROW or ROW2COL */
+#define DIODE_DIRECTION COL2ROW
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCING_DELAY 5
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
diff --git a/keyboards/handwired/jotanck/jotanck.c b/keyboards/handwired/jotanck/jotanck.c
new file mode 100644
index 0000000000..7744570b23
--- /dev/null
+++ b/keyboards/handwired/jotanck/jotanck.c
@@ -0,0 +1,6 @@
+#include "jotanck.h"
+
+void matrix_init_kb(void) {
+
+	matrix_init_user();
+}
diff --git a/keyboards/handwired/jotanck/jotanck.h b/keyboards/handwired/jotanck/jotanck.h
new file mode 100644
index 0000000000..e8dd93edaf
--- /dev/null
+++ b/keyboards/handwired/jotanck/jotanck.h
@@ -0,0 +1,17 @@
+#pragma once
+
+#include "quantum.h"
+
+
+#define LAYOUT_ortho_4x12( \
+	k00, k01, k02, k03, k04, k05, k06, k07, k08, k09, k0a, k0b, \
+	k10, k11, k12, k13, k14, k15, k16, k17, k18, k19, k1a, k1b, \
+	k20, k21, k22, k23, k24, k25, k26, k27, k28, k29, k2a, k2b, \
+	k30, k31, k32, k33, k34, k35, k36, k37, k38, k39, k3a, k3b \
+) \
+{ \
+	{ k00, k01, k02, k03, k04, k05, k06, k07, k08, k09, k0a, k0b }, \
+	{ k10, k11, k12, k13, k14, k15, k16, k17, k18, k19, k1a, k1b }, \
+	{ k20, k21, k22, k23, k24, k25, k26, k27, k28, k29, k2a, k2b }, \
+	{ k30, k31, k32, k33, k34, k35, k35, k37, k38, k39, k3a, k3b } \
+}
diff --git a/keyboards/handwired/jotanck/keymaps/default/keymap.c b/keyboards/handwired/jotanck/keymaps/default/keymap.c
new file mode 100644
index 0000000000..77c144890b
--- /dev/null
+++ b/keyboards/handwired/jotanck/keymaps/default/keymap.c
@@ -0,0 +1,115 @@
+// This is the canonical layout file for the Quantum project. If you want to add another keyboard,
+// this is the style you want to emulate.
+
+#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    1
+#define _RAISE    2
+#define _ADJUST   3
+
+enum planck_keycodes {
+  BACKLIT = SAFE_RANGE
+};
+
+#define LOWER MO(_LOWER)
+#define RAISE MO(_RAISE)
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * +--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+
+ * |   esc  |    Q   |    W   |    E   |    R   |    T   |    Y   |    U   |    I   |    O   |    P   |  bksp  |
+ * +--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+
+ * |   tab  |    A   |    S   |    D   |    F   |    G   |    H   |    J   |    K   |    L   |    ;   |    '   |
+ * +--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+
+ * | lshift |    Z   |    X   |    C   |    V   |    B   |    N   |    M   |    ,   |    .   |    /   |  enter |
+ * +--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+
+ * |backlit |  lctrl |  lgui  |  lalt  |  lower |  space |  space |  raise |  left  |  down  |   up   |  right | 
+ * +--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+
+ */
+[_QWERTY] = 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_TAB,  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,
+    BACKLIT, KC_LCTL, KC_LGUI, KC_LALT, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT
+),
+
+/* Lower
+ * +--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+
+ * |    `   |    1   |    2   |    3   |    4   |    5   |    6   |    7   |    8   |    9   |    0   |        |
+ * +--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+
+ * |        |   F1   |   F2   |   F3   |   F4   |   F5   |   F6   |    -   |    =   |    [   |    ]   |    \   |
+ * +--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+
+ * |        |   F7   |   F8   |   F9   |   F10  |   F11  |   F12  |        |        |        |        |        |
+ * +--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+
+ * |        |        |        |        |        |        |        |        |        |        |        |        |
+ * +--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+
+ */
+[_LOWER] = 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_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,  _______, _______, _______, _______, _______,
+     _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
+),
+
+/* Raise
+ * +--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+
+ * |    ~   |    !   |    @   |    #   |    $   |    %   |    ^   |    &   |    *   |    (   |    )   |   del  |
+ * +--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+
+ * |        |   F1   |   F2   |   F3   |   F4   |   F5   |   F6   |    _   |    +   |    {   |    }   |    |   |
+ * +--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+
+ * |        |   F7   |   F8   |   F9   |   F10  |   F11  |   F12  |        |        |        |        |        |
+ * +--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+
+ * |        |        |        |        |        |        |        |        |  home  |  home  |  pgdn  |   end  |
+ * +--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+
+ */
+[_RAISE] = 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_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,  _______, _______, _______, _______, _______,
+    _______, _______, _______, _______, _______, _______, _______, _______, KC_HOME, KC_PGDN, KC_PGUP, KC_END
+),
+
+[_ADJUST] = LAYOUT_ortho_4x12 (
+    _______, RESET,   _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+    _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+    _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+    _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
+),
+};
+
+uint32_t layer_state_set_user(uint32_t state) {
+  return update_tri_layer_state(state, _LOWER, _RAISE, _ADJUST);
+}
+
+void matrix_init_user(void) {
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+    switch (keycode) {
+
+        case BACKLIT:
+            if (record->event.pressed) {
+                register_code(KC_RSFT);
+                #ifdef BACKLIGHT_ENABLE
+                backlight_step();
+                #endif
+            } else {
+                unregister_code(KC_RSFT);
+            }
+            return false;
+	    break;
+
+	default:
+	    return true;
+
+    }
+}
diff --git a/keyboards/handwired/jotanck/readme.md b/keyboards/handwired/jotanck/readme.md
new file mode 100644
index 0000000000..41b0ea401e
--- /dev/null
+++ b/keyboards/handwired/jotanck/readme.md
@@ -0,0 +1,38 @@
+# Jotanck
+
+![Jotanck](https://i.imgur.com/bBfO4L2.jpg)
+
+A compact 40% (12x4) ortholinear keyboard kit inspired in the Planck made by jotix.
+
+Keyboard Maintainer: [jotix](https://github.com/jotix)  
+Hardware Supported: Arduino Pro Micro  
+Hardware Availability: [Mercado Libre](https://articulo.mercadolibre.com.ar/MLA-771696548-teclado-mecanico-handwired-black-switchs-pbt-keycaps-_JM)
+
+### Arduino Pro Micro Pinout
+
+| Rows        | 0  | 1  | 2  | 3  |
+|-------------|----|----|----|----|
+| Arduino pin | 8  | 9  | 10 | 16 |
+| QMK pin     | B4 | B5 | B6 | B2 |
+
+| Columns     | 0  | 1  | 2  | 3  | 4  | 5  | 6   | 7   | 8  | 9  | 10 | 11 |
+|-------------|----|----|----|----|----|----|-----|-----|----|----|----|----|
+| Arduino pin | A3 | A2 | A1 | A0 | 15 | 14 | TX0 | RXI | 2  | 3  | 4  | 5  |
+| QMK pin     | F4 | F5 | F6 | F7 | B1 | B3 | D3  | D2  | D1 | D0 | D4 | C6 |
+
+|             | QMK led   | Backlight |
+|-------------|-----------|-----------|
+| Arduino pin | 7         | 6         |
+| QMK pin     | E6        | D7        |
+
+### Compiling the Firmware
+
+Make example for this keyboard (after setting up your build environment):
+
+    make handwired/jotanck:default
+
+### The Defaukt Keymap
+
+![Default Keymap](https://i.imgur.com/Fh7g1AQ.jpg)
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
diff --git a/keyboards/handwired/jotanck/rules.mk b/keyboards/handwired/jotanck/rules.mk
new file mode 100644
index 0000000000..6c32634461
--- /dev/null
+++ b/keyboards/handwired/jotanck/rules.mk
@@ -0,0 +1,66 @@
+# MCU name
+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)
+OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
+
+# Build Options
+#   change to "no" to disable the options, or define them in the Makefile in
+#   the appropriate keymap folder that will get included automatically
+#
+
+BOOTMAGIC_ENABLE = no       # Virtual DIP switch configuration(+1000)
+MOUSEKEY_ENABLE = no       # Mouse keys(+4700)
+EXTRAKEY_ENABLE = yes       # Audio control and System control(+450)
+CONSOLE_ENABLE = yes         # Console for debug(+400)
+COMMAND_ENABLE = no        # Commands for debug and configuration
+NKRO_ENABLE = yes            # Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+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.
+API_SYSEX_ENABLE = no
+
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no    # Breathing sleep LED during USB suspend
+LAYOUTS = ortho_4x12