added zmk firmware configs

firmware/zmk/.github/workflows/build.yml

@@ -0,0 +1,6 @@
+name: Build ZMK firmware
+on: [push, pull_request, workflow_dispatch]
+
+jobs:
+  build:
+    uses: zmkfirmware/zmk/.github/workflows/build-user-config.yml@v0.3

firmware/zmk/boards/shields/yampad/Kconfig.defconfig

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+# Copyright (c) 2025 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+
+if SHIELD_YAMPAD
+
+config ZMK_KEYBOARD_NAME
+    default "YamPad"
+
+config ZMK_DISPLAY
+    default y
+
+if ZMK_DISPLAY
+
+config I2C
+    default y
+
+config SSD1306
+    default y
+
+endif # ZMK_DISPLAY
+
+if LVGL
+
+config LV_Z_VDB_SIZE
+    default 64
+
+config LV_DPI_DEF
+    default 148
+
+config LV_Z_BITS_PER_PIXEL
+    default 1
+
+choice LV_COLOR_DEPTH
+    default LV_COLOR_DEPTH_1
+endchoice
+
+endif # LVGL
+
+endif

firmware/zmk/boards/shields/yampad/Kconfig.shield

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+# Copyright (c) 2025 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+
+config SHIELD_YAMPAD
+    def_bool $(shields_list_contains,yampad)

firmware/zmk/boards/shields/yampad/boards/nice_nano.overlay

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+#include <dt-bindings/led/led.h>
+
+&pinctrl {
+    spi3_default: spi3_default {
+        group1 {
+            psels = <NRF_PSEL(SPIM_MOSI, 0, 31)>;
+        };
+    };
+
+    spi3_sleep: spi3_sleep {
+        group1 {
+            psels = <NRF_PSEL(SPIM_MOSI, 0, 31)>;
+            low-power-enable;
+        };
+    };
+};
+
+&spi3 {
+    compatible = "nordic,nrf-spim";
+    status = "okay";
+
+    pinctrl-0 = <&spi3_default>;
+    pinctrl-1 = <&spi3_sleep>;
+    pinctrl-names = "default", "sleep";
+
+    led_strip: ws2812@0 {
+        compatible = "worldsemi,ws2812-spi";
+
+        /* SPI */
+        reg = <0>; /* ignored, but necessary for SPI bindings */
+        spi-max-frequency = <4000000>;
+
+        /* WS2812 */
+        chain-length = <8>; /* number of SMD LED footprints on PCB */
+        spi-one-frame = <0x70>;
+        spi-zero-frame = <0x40>;
+
+        color-mapping = <LED_COLOR_ID_GREEN LED_COLOR_ID_RED LED_COLOR_ID_BLUE>;
+    };
+};
+
+/ {
+    chosen {
+        zmk,underglow = &led_strip;
+    };
+};

firmware/zmk/boards/shields/yampad/boards/nice_nano_v2.overlay

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+#include <dt-bindings/led/led.h>
+
+&pinctrl {
+    spi3_default: spi3_default {
+        group1 {
+            psels = <NRF_PSEL(SPIM_MOSI, 0, 31)>;
+        };
+    };
+
+    spi3_sleep: spi3_sleep {
+        group1 {
+            psels = <NRF_PSEL(SPIM_MOSI, 0, 31)>;
+            low-power-enable;
+        };
+    };
+};
+
+&spi3 {
+    compatible = "nordic,nrf-spim";
+    status = "okay";
+
+    pinctrl-0 = <&spi3_default>;
+    pinctrl-1 = <&spi3_sleep>;
+    pinctrl-names = "default", "sleep";
+
+    led_strip: ws2812@0 {
+        compatible = "worldsemi,ws2812-spi";
+
+        /* SPI */
+        reg = <0>; /* ignored, but necessary for SPI bindings */
+        spi-max-frequency = <4000000>;
+
+        /* WS2812 */
+        chain-length = <8>; /* number of SMD LED footprints on PCB */
+        spi-one-frame = <0x70>;
+        spi-zero-frame = <0x40>;
+
+        color-mapping = <LED_COLOR_ID_GREEN LED_COLOR_ID_RED LED_COLOR_ID_BLUE>;
+    };
+};
+
+/ {
+    chosen {
+        zmk,underglow = &led_strip;
+    };
+};

firmware/zmk/boards/shields/yampad/yampad.conf

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+# Uncomment to disable OLED
+#CONFIG_ZMK_DISPLAY=n

firmware/zmk/boards/shields/yampad/yampad.keymap

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+/*
+ * Copyright (c) 2025 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <behaviors.dtsi>
+#include <dt-bindings/zmk/keys.h>
+#include <dt-bindings/zmk/bt.h>
+#include <dt-bindings/zmk/outputs.h>
+#include <dt-bindings/zmk/rgb.h>
+
+/ {
+
+    keymap: keymap {
+        compatible = "zmk,keymap";
+
+        default_layer {
+            display-name = "default";
+            bindings = <
+                &kp KP_NUM       &kp KP_DIVIDE   &kp KP_MULTIPLY   &kp KP_MINUS
+                &kp KP_N7        &kp KP_N8       &kp KP_N9
+                &kp KP_N4        &kp KP_N5       &kp KP_N6         &kp KP_PLUS
+                &kp KP_N1        &kp KP_N2       &kp KP_N3         &kp KP_ENTER        
+                &kp KP_N0        &kp KP_N0       &kp KP_DOT
+            >;
+        };
+    };
+};

firmware/zmk/boards/shields/yampad/yampad.overlay

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+/*
+ * Copyright (c) 2025 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <dt-bindings/zmk/matrix_transform.h>
+
+
+/ {
+    chosen {
+        zephyr,display = &oled;
+        zmk,kscan = &kscan;
+        zmk,matrix-transform = &default_transform;
+    };
+
+    kscan: kscan {
+        compatible = "zmk,kscan-gpio-matrix";
+        wakeup-source;
+
+        diode-direction = "col2row";
+        row-gpios
+            = <&pro_micro 5 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+            , <&pro_micro 6 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+            , <&pro_micro 7 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+            , <&pro_micro 8 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+            , <&pro_micro 9 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+            ;
+        col-gpios
+            = <&pro_micro 15  GPIO_ACTIVE_HIGH>
+            , <&pro_micro 14  GPIO_ACTIVE_HIGH>
+            , <&pro_micro 16  GPIO_ACTIVE_HIGH>
+            , <&pro_micro 10  GPIO_ACTIVE_HIGH>
+            ;
+    };
+
+    default_transform: keymap_transform_0 {
+            compatible = "zmk,matrix-transform";
+            columns = <4>;
+            rows = <5>;
+            map = <
+                RC(0,0) RC(0,1) RC(0,2) RC(0,3)
+                RC(1,0) RC(1,1) RC(1,2) 
+                RC(2,0) RC(2,1) RC(2,2) RC(1,3)
+                RC(3,0) RC(3,1) RC(3,2) RC(4,3)
+                RC(4,0) RC(4,1) RC(4,2) 
+        >;
+    };
+
+};
+
+&pro_micro_i2c {
+    status = "okay";
+
+    oled: ssd1306@3c {
+        compatible = "solomon,ssd1306fb";
+        reg = <0x3c>;
+        width = <128>;
+        height = <32>;
+        segment-offset = <0>;
+        page-offset = <0>;
+        display-offset = <0>;
+        multiplex-ratio = <31>;
+        segment-remap;
+        com-invdir;
+        com-sequential;
+        inversion-on;
+        prechargep = <0x22>;
+    };
+};

firmware/zmk/boards/shields/yampad/yampad.zmk.yml

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+file_format: "1"
+id: yampad
+name: Yampad
+type: shield
+url: https://github.com/mattdibi/yampad
+requires: [pro_micro]
+exposes: [i2c_oled]
+features:
+  - keys
+  - display

firmware/zmk/build.yaml

@@ -0,0 +1,25 @@
+# This file generates the GitHub Actions matrix.
+# For simple board + shield combinations, add them to the top level board and
+# shield arrays, for more control, add individual board + shield combinations
+# to the `include` property. You can also use the `cmake-args` property to
+# pass flags to the build command, `snippet` to add a Zephyr snippet, and
+# `artifact-name` to assign a name to distinguish build outputs from each other:
+#
+# board: [ "nice_nano_v2" ]
+# shield: [ "corne_left", "corne_right" ]
+# include:
+#   - board: bdn9_rev2
+#   - board: nice_nano_v2
+#     shield: reviung41
+#   - board: nice_nano_v2
+#     shield: corne_left
+#     snippet: studio-rpc-usb-uart
+#     cmake-args: -DCONFIG_ZMK_STUDIO=y
+#     artifact-name: corne_left_with_studio
+#
+---
+include:
+  - board: nice_nano_v2
+    shield: yampad
+  - board: nice_nano_v2
+    shield: settings_reset

firmware/zmk/config/west.yml

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+manifest:
+  defaults:
+    revision: v0.3
+  remotes:
+    - name: zmkfirmware
+      url-base: https://github.com/zmkfirmware
+    # Additional modules containing boards/shields/custom code can be listed here as well
+    # See https://docs.zephyrproject.org/3.2.0/develop/west/manifest.html#projects
+  projects:
+    - name: zmk
+      remote: zmkfirmware
+      import: app/west.yml
+  self:
+    path: config

firmware/zmk/zephyr/module.yml

@@ -0,0 +1,3 @@
+build:
+  settings:
+    board_root: .