Add 'The Paintbrush' mini keybord to repo

.github/workflows/build.yml

@@ -15,6 +15,8 @@ jobs:
             shield: corne_artsey_left
           - board: nice_nano
             shield: corne_artsey_right
+          - board: nice_nano
+            shield: the_paintbrush
     steps:
       - name: Checkout
         uses: actions/checkout@v2

config/boards/shields/the_paintbrush/Kconfig.defconfig

@@ -0,0 +1,34 @@
+if SHIELD_THE_PAINTBRUSH
+
+config ZMK_KEYBOARD_NAME
+	default "The Paintbrush"
+
+config I2C
+	default y
+
+config SSD1306
+	default y
+
+config SSD1306_REVERSE_MODE
+	default y
+
+config LVGL_HOR_RES_MAX
+	default 128
+
+config LVGL_VER_RES_MAX
+	default 32
+
+config LVGL_VDB_SIZE
+	default 64
+
+config LVGL_DPI
+	default 148
+
+config LVGL_BITS_PER_PIXEL
+	default 1
+
+choice LVGL_COLOR_DEPTH
+	default LVGL_COLOR_DEPTH_1
+endchoice
+
+endif

config/boards/shields/the_paintbrush/Kconfig.shield

@@ -0,0 +1,5 @@
+# Copyright (c) 2021 Mike "KemoNine" Crosson
+# SPDX-License-Identifier: MIT
+
+config SHIELD_THE_PAINTBRUSH
+	def_bool $(shields_list_contains,the_paintbrush)

config/boards/shields/the_paintbrush/the_paintbrush.conf

@@ -0,0 +1,20 @@
+# Copyright (c) 2021 Mike "KemoNine" Crosson
+# SPDX-License-Identifier: MIT
+
+# Tune combos to allow proper ARTSEY support
+CONFIG_ZMK_COMBO_MAX_COMBOS_PER_KEY=16
+CONFIG_ZMK_COMBO_MAX_KEYS_PER_COMBO=8
+CONFIG_ZMK_COMBO_MAX_PRESSED_COMBOS=8
+
+# Enable display (layer in use is helpful)
+CONFIG_ZMK_DISPLAY=y
+
+# Turn on deep sleep
+CONFIG_ZMK_SLEEP=y
+CONFIG_ZMK_IDLE_SLEEP_TIMEOUT=900000
+
+# Set screen blanking to 15s instead of 30s
+CONFIG_ZMK_IDLE_TIMEOUT=15000
+
+# Add debug logging
+#CONFIG_ZMK_USB_LOGGING=y

config/boards/shields/the_paintbrush/the_paintbrush.keymap

@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2021 Mike "KemoNine" Crosson
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <behaviors.dtsi>
+#include <dt-bindings/zmk/keys.h>
+#include <dt-bindings/zmk/bt.h>
+
+// THE BOARD IS FLIPPED FOR LEFT BUT STILL WIRED RIGHT!
+#define ARTSEY_RIGHT 1
+
+// ARTS Row
+#define KEY_A 0
+#define KEY_R 1
+#define KEY_T 2
+#define KEY_S 3
+// EYIO Row
+#define KEY_E 4
+#define KEY_Y 5
+#define KEY_I 6
+#define KEY_O 7
+
+// Define Offsets
+#define LEADING_NONES NONE(0,0,0)
+#define MIDDLE_NONES NONE(0, 0, 0)
+#define TRAILING_NONES NONE(0, 0, 0)
+
+// Include main artsey.io keymap
+#include "../../../artsey.dtsi"

config/boards/shields/the_paintbrush/the_paintbrush.overlay

@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2021 Mike "KemoNine" Crosson
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <dt-bindings/zmk/matrix_transform.h>
+
+/ {
+	chosen {
+		zmk,kscan = &kscan0;
+	};
+
+	kscan0: kscan_0 {
+		compatible = "zmk,kscan-gpio-direct";
+
+		label = "KSCAN";
+
+		input-gpios
+			= <&pro_micro_a 3 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_a 2 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_a 1 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_a 0 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_d 15 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_d 14 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_d 16 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&pro_micro_d 10 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			;
+
+	};
+};
+
+&pro_micro_i2c {
+	status = "okay";
+
+	oled: ssd1306@3c {
+		compatible = "solomon,ssd1306fb";
+		reg = <0x3c>;
+		label = "DISPLAY";
+		width = <128>;
+		height = <32>;
+		segment-offset = <0>;
+		page-offset = <0>;
+		display-offset = <0>;
+		multiplex-ratio = <31>;
+		segment-remap;
+		com-invdir;
+		com-sequential;
+		prechargep = <0x22>;
+	};
+};