Rotary numpad (#21744)

Co-authored-by: Duncan Sutherland <dunk2k_2000@hotmail.com>
Co-authored-by: Drashna Jaelre <drashna@live.com>

keyboards/handwired/rabijl/rotary_numpad/info.json

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+{
+    "manufacturer": "rabijl",
+    "keyboard_name": "rotary_numpad",
+    "maintainer": "rabijl",
+    "url": "https://github.com/RABijl/",
+    "usb": {
+        "device_version": "1.0.0",
+        "pid": "0x0000",
+        "vid": "0xFEED"
+    },
+    "features": {
+        "bootmagic": true,
+        "command": false,
+        "console": false,
+        "extrakey": true,
+        "mousekey": true,
+        "nkro": true,
+        "encoder": true
+    },
+    "development_board": "promicro",
+    "diode_direction": "COL2ROW",
+    "matrix_pins": {
+        "cols": ["F5", "F4", "B5", "B4"],
+        "rows": ["F6", "F7", "B1", "B3", "B2", "B6"]
+    },
+    "encoder": {
+        "rotary": [
+            {"pin_a": "D1", "pin_b": "D0", "resolution": 3},
+            {"pin_a": "D4", "pin_b": "C6", "resolution": 3},
+            {"pin_a": "D7", "pin_b": "E6", "resolution": 3}
+         ]
+    },
+    "layouts": {
+        "LAYOUT": {
+            "layout": [
+                {"matrix": [5, 0],"x":0, "y":0.4},
+                {"matrix": [0, 0], "x":2, "y":0},
+                {"matrix": [0, 1], "x":3, "y":0},
+                {"matrix": [0, 2], "x":4, "y":0},
+                {"matrix": [0, 3], "x":5, "y":0},
+                {"matrix": [1, 0], "x":2, "y":1.25},
+                {"matrix": [1, 1], "x":3, "y":1.25},
+                {"matrix": [1, 2], "x":4, "y":1.25},
+                {"matrix": [1, 3], "x":5, "y":1.25},
+                {"matrix": [2, 0], "x":2, "y":2.25},
+                {"matrix": [2, 1], "x":3, "y":2.25},
+                {"matrix": [2, 2], "x":4, "y":2.25},
+                {"matrix": [2, 3], "x":5, "y":2.25, "h":2},
+                
+                {"matrix": [3, 3], "x":0, "y":2.75},
+                {"matrix": [3, 0], "x":2, "y":3.25},
+                {"matrix": [3, 1], "x":3, "y":3.25},
+                {"matrix": [3, 2], "x":4, "y":3.25},
+                
+                {"matrix": [4, 0], "x":2, "y":4.25},
+                {"matrix": [4, 1], "x":3, "y":4.25},
+                {"matrix": [4, 2], "x":4, "y":4.25},
+                {"matrix": [4, 3], "x":5, "y":4.25, "h":2},
+                
+                {"matrix": [5, 3], "x":0, "y":5.05},
+                {"matrix": [5, 1], "x":2, "y":5.25, "w":2},
+                {"matrix": [5, 2], "x":4, "y":5.25}
+            ]
+        }
+    }
+}

keyboards/handwired/rabijl/rotary_numpad/keymaps/default/keymap.c

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+// Copyright 2023 QMK
+// SPDX-License-Identifier: GPL-2.0-or-later
+//
+
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+	/*
+     * ┌───┐┌───┬───┬───┬───┐
+     * │Ply││Esc│Tab│MO1│Bsp│
+     * └───┘├───┼───┼───┼───┤
+     *      │Num│ / │ * │ - │
+     *      ├───┼───┼───┼───┤
+     *      │ 7 │ 8 │ 9 │   │
+     * ┌───┐├───┼───┼───┤ + │
+     * │Esc││ 4 │ 5 │ 6 │   │
+     * └───┘├───┼───┼───┼───┤
+     *      │ 1 │ 2 │ 3 │   │
+     * ┌───┐├───┴───┼───┤Ent│
+     * │ENT││   0   │ . │   │
+     * └───┘└───────┴───┴───┘
+     */
+    [0] = LAYOUT(
+        KC_MPLY, KC_ESC,  KC_TAB,  MO(1),   KC_BSPC,
+                 KC_NUM,  KC_PSLS, KC_PAST, KC_PMNS,
+                 KC_P7,   KC_P8,   KC_P9,   KC_PPLS,
+        KC_ESC,  KC_P4,   KC_P5,   KC_P6,
+                 KC_P1,   KC_P2,   KC_P3,   KC_PENT,
+        KC_ENT,  KC_P0,            KC_PDOT
+    ),
+    /*
+     * ┌───┐┌───┬───┬───┬───┐
+     * │Ply││Rst│Tab│MO1│Bsp│
+     * └───┘├───┼───┼───┼───┤
+     *      │Num│ / │ * │ - │
+     *      ├───┼───┼───┼───┤
+     *      │Hom│ ↑ │PgU│   │
+     * ┌───┐├───┼───┼───┤ + │
+     * │Esc││ ← │   │ → │   │
+     * └───┘├───┼───┼───┼───┤
+     *      │End│ ↓ │PgD│   │
+     * ┌───┐├───┴───┼───┤Ent│
+     * │ENT││Insert │Del│   │
+     * └───┘└───────┴───┘───┘
+     */
+    [1] = LAYOUT(
+        _______, QK_BOOT, _______, _______, _______,
+                 _______, _______, _______, _______,
+                 KC_HOME, KC_UP,   KC_PGUP, _______,
+        _______, KC_LEFT, KC_NO,   KC_RGHT,
+                 KC_END,  KC_DOWN, KC_PGDN, _______,
+        _______, KC_INS,           KC_DEL
+    )
+};
+
+#if defined(ENCODER_MAP_ENABLE)
+
+const uint16_t PROGMEM encoder_map[][NUM_ENCODERS][NUM_DIRECTIONS] = {
+    [0] = { ENCODER_CCW_CW(KC_VOLD, KC_VOLU), ENCODER_CCW_CW(KC_DOWN, KC_UP),    ENCODER_CCW_CW(KC_LEFT, KC_RIGHT) },
+    [1] = { ENCODER_CCW_CW(_______, _______), ENCODER_CCW_CW(KC_LEFT, KC_RIGHT), ENCODER_CCW_CW(_______, _______) },
+};
+#endif

keyboards/handwired/rabijl/rotary_numpad/keymaps/default/rules.mk

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+
+ENCODER_MAP_ENABLE = yes

keyboards/handwired/rabijl/rotary_numpad/readme.md

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+# Rotary Numpad
+
+
+![rotary_numpad](https://i.imgur.com/GwEH4WOh.jpeg)
+
+This is a personal project of mine where I wanted a number pad that I can put on the left side of keyboard that doesn't have a numberpad. I fell in love with the feel of rotary encoders on my 3d printer, so added three to be able to play around with.
+
+* Keyboard Maintainer: [rabijl](https://github.com/rabijl)
+* Hardware Supported: Sparkfun Pro Micro 5V (atmega32u4)
+* Hardware Availability: https://www.sparkfun.com/products/12640
+
+## How to build from scratch
+
+I handsoldered gateron blue switches to a 3D printed case. The design is modified from the [Ultipad](https://www.thingiverse.com/thing:4248565). \
+I used a sparkfun Pro Micro as my microcontroller and the pinout can be found in the `info.json`. I found this [site](https://golem.hu/article/pro-micro-pinout/) \
+to be very useful to identify different pins. You can find useful information on rotary encoders from the qmk docs [here](https://docs.qmk.fm/#/reference_info_json?id=encoders) and [here](https://docs.qmk.fm/#/feature_encoders).
+
+### matrix
+
+Due to the three rotary encoders, I had to use most of the available pins. Fortunately, all the buttons still fit in a 6x4 matrix. Looking at the diagram below, the three buttons in the first column correspond to each encoder button.
+
+```
+        ┌──┐┌──┐┌──┐┌──┐
+        │0A││0B││0C││0D│
+┌──┐    └──┘└──┘└──┘└──┘
+│5A│
+└──┘    ┌──┐┌──┐┌──┐┌──┐
+        │1A││1B││1C││1D│
+        └──┘└──┘└──┘└──┘
+        ┌──┐┌──┐┌──┐┌──┐
+        │2A││2B││2C││2D│
+┌──┐    └──┘└──┘└──┘│  │
+│3D│    ┌──┐┌──┐┌──┐│  │
+└──┘    │3A││3B││3C││  │
+        └──┘└──┘└──┘└──┘
+        ┌──┐┌──┐┌──┐┌──┐
+        │4A││4B││4C││4D│
+        └──┘└──┘└──┘│  │
+┌──┐    ┌──────┐┌──┐│  │
+│5D│    │5B    ││5C││  │
+└──┘    └──────┘└──┘└──┘
+
+```
+
+## Flashing
+
+Make example for this keyboard (after setting up your build environment):
+
+    qmk compile -kb handwired/rabijl/rotary_numpad -km default
+
+Flashing example for this keyboard:
+
+    qmk flash -kb handwired/rabijl/rotary_numpad -km default
+
+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).
+
+## Bootloader
+
+Enter the bootloader in 3 ways:
+
+* **Short reset leads**: tap the reset lead to ground twice quickly after qmk is in flash mode
+* **Keycode in layout**: double tap the key mapped to `QK_BOOT`. On the default keymap this can be found by holding in key (0,C) and tapping key (0,A), see the matrix section for the positions of these keys. 
+* **Bootmagic reset**: Hold down the key at (0,A) in the matrix (see matrix section) and plug in the keyboard
+
+**Note:** if the keyboard doesn't show up after putting the keyboard in reset mode, check that 
+your user is added to the `tty` and/or `uucp` groups. \
+You may need to logout after adding these groups to your user, for the changes to take affect.

keyboards/handwired/rabijl/rotary_numpad/rules.mk

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+# file intentionally left blank