[Keyboard] Add Little Big Scroll 4 macropad (#18516)

Co-authored-by: Drashna Jaelre <drashna@live.com>

keyboards/tweetydabird/lbs4/config.h

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+// Copyright 2022 Markus Knutsson (@TweetyDaBird)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+#include "config_common.h"
+
+// Bootmagic Lite key configuration
+// Not yet supported in info.json ?
+#define BOOTMAGIC_LITE_ROW 0
+#define BOOTMAGIC_LITE_COLUMN 0

keyboards/tweetydabird/lbs4/info.json

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+{
+	"keyboard_name": "Little Big Scroll 4",
+	"manufacturer": "Tweetys Wild Thinking",
+	"url": "https://lectronz.com/stores/tweetys-wild-thinking",
+	"maintainer": "TweetyDaBird",	
+	
+	"development_board": "promicro",
+	"bootloader_instructions": "Short marked pads on PCB, or hold top left key when plugging in.",
+	
+	"features": {
+		"bootmagic": true,
+		"command": false,
+		"console": false,
+		"extrakey": true,
+		"mousekey": false,
+		"nkro": false,
+		"rgblight": true,
+		"encoder": true
+	},
+
+	"build": {
+		"lto": true
+	},
+	
+	"debounce": 5,
+	
+	"usb": {
+		"vid": "0xFEED",
+        "pid": "0x23B0",
+		"device_version": "1.1.0"
+	},
+
+	"matrix_pins": {
+        "direct": [
+			["E6", "D7", "F4"],
+			["B5", "B4", null]
+        ]
+    },
+
+	"encoder": {
+        "rotary": [
+            { 
+				"pin_a": "B1", 
+				"pin_b": "F7",
+				"resolution": 2
+			}
+        ]
+    },
+	
+	"rgblight": {
+        "led_count": 6,
+        "pin": "D2",
+        "hue_steps": 8,
+        "saturation_steps": 17,
+        "brightness_steps": 17,
+		"max_brightness": 175,
+        "animations": {
+            "alternating": true
+            "breathing": true,
+            "rainbow_mood": true,
+            "static_gradient": true,
+        }
+    },
+
+	"layouts": {
+        "LAYOUT": {
+            "layout": [	
+			{ "label": "Play", 	"matrix": [0, 2], "x": 2, "y": 0, "w": 2, "h": 2 }, 
+			
+			{ "label": "F1", 	"matrix": [0, 0], "x": 0, "y": 0, "w": 1, "h": 1 }, 
+			{ "label": "F2", 	"matrix": [0, 1], "x": 1, "y": 0, "w": 1, "h": 1 }, 
+			
+			{ "label": "F3", 	"matrix": [1, 0], "x": 0, "y": 1, "w": 1, "h": 1 },
+			{ "label": "F4", 	"matrix": [1, 1], "x": 1, "y": 1, "w": 1, "h": 1 },
+			]
+		}
+	}	
+}

keyboards/tweetydabird/lbs4/keymaps/default/keymap.c

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+// Copyright 2022 Markus Knutsson (@TweetyDaBird)
+// 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,
+    _RGB
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    /* Base */
+    [_BASE] = LAYOUT(
+        KC_MPLY,
+		TO(_RGB),	KC_MSEL,	
+		KC_MPRV,	KC_MNXT
+    ),
+    [_RGB] = LAYOUT(
+        KC_MPLY,
+		TO(_BASE),	RGB_VAI,	
+		RGB_TOG,	RGB_VAD
+    )
+};
+
+bool encoder_update_user(uint8_t index, bool clockwise) {
+    if (index == 0) {
+		if (clockwise) {
+			tap_code(KC_VOLU);
+		} else {
+			tap_code(KC_VOLD);
+		}        
+	} 
+	return true;
+};

keyboards/tweetydabird/lbs4/keymaps/default/readme.md

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+# The default keymap for lbs4
+
+This is a very basic layout using LSB4 as media playback buttons. 
+
+![lsb4](https://imgur.com/hCDdQIc)

keyboards/tweetydabird/lbs4/readme.md

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+# Little Big Scroll 4
+
+![lsb4](https://i.imgur.com/MMGSDz2h.jpeg)
+
+* A simple 4-key or 2-key plus OLED macropad with a clickable scrollwheel, for media controls and whatever else you can imagine.*
+
+* Keyboard Maintainer: [Markus Knutsson](https://github.com/TweetyDaBird/)
+* Hardware Supported: LBS4 PCB plus Pro Micro or pin compatible
+* Hardware Availability: https://lectronz.com/stores/tweetys-wild-thinking
+* Hardware Design: https://github.com/TweetyDaBird/Little-Big-Scroll
+
+
+Make example for this keyboard (after setting up your build environment):
+
+    make tweetydabird/lbs4: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:
+
+* **Bootmagic reset**: Hold down the top left key and plug in the keyboard
+* **Physical reset**: Briefly short the marked pads on PCB
+* **Keycode in layout**: Press the key mapped to `QK_BOOT` if mapped (not in default keymap)

keyboards/tweetydabird/lbs4/rules.mk

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+# This file intentionally left blank