add underglow for reviung5

app/boards/shields/reviung5/boards/nice_nano_v2.overlay

@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2024 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <dt-bindings/led/led.h>
+
+&pinctrl {
+    spi3_default: spi3_default {
+        group1 {
+            psels = <NRF_PSEL(SPIM_MOSI, 0, 6)>;
+        };
+    };
+
+    spi3_sleep: spi3_sleep {
+        group1 {
+            psels = <NRF_PSEL(SPIM_MOSI, 0, 6)>;
+            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 = <4>;
+        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;
+    };
+};

app/boards/shields/reviung5/reviung5.conf

@@ -1,3 +1,7 @@
-# Encoder support. Uncomment to enable.
+# Uncomment the following two lines to add support for encoders
 # CONFIG_EC11=y
 # CONFIG_EC11_TRIGGER_GLOBAL_THREAD=y
+
+# Uncomment the following two lines to enable RGB underglow
+# CONFIG_ZMK_RGB_UNDERGLOW=y
+# CONFIG_WS2812_STRIP=y

app/boards/shields/reviung5/reviung5.keymap

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2022 The ZMK Contributors
+ * Copyright (c) 2024 The ZMK Contributors
  *
  * SPDX-License-Identifier: MIT
  */
@@ -8,31 +8,53 @@
 #include <dt-bindings/zmk/keys.h>
 #include <dt-bindings/zmk/bt.h>
 #include <dt-bindings/zmk/outputs.h>
+#include <dt-bindings/zmk/rgb.h>
+#include <dt-bindings/zmk/ext_power.h>
 
 #define BASE 0
 #define BLE 1
+#define RGB 2
 
 / {
+
+        behaviors {
+            rgb_encoder: rgb_encoder {
+              compatible = "zmk,behavior-sensor-rotate";
+              #sensor-binding-cells = <0>;
+              bindings = <&rgb_ug RGB_BRD>, <&rgb_ug RGB_BRI>;
+            };
+        };
+
         keymap {
             compatible = "zmk,keymap";
 
             base_layer {
               display-name = "BASE";
               bindings = <
-                // ╭─────────────┬──────────────┬──────────────────┬─────────────┬─────────────╮
+                // ╭─────────┬────────────────┬──────────────────┬────────────┬────────────────╮
-                     &mo BLE      &kp C_PREVIOUS  &kp C_PLAY_PAUSE    &kp C_NEXT   &kp C_MUTE
+                     &mo BLE   &kp C_PREVIOUS   &kp C_PLAY_PAUSE   &kp C_NEXT   &lt RGB C_MUTE
-                // ╰─────────────┴──────────────┴──────────────────┴─────────────┴─────────────╯
+                // ╰─────────┴────────────────┴──────────────────┴────────────┴────────────────╯
               >;
-              sensor-bindings = <&inc_dec_kp C_VOL_UP C_VOL_DN>;
+              sensor-bindings = <&inc_dec_kp C_VOL_DN C_VOL_UP>;
             };
 
             ble_layer {
               display-name = "BLE";
               bindings = <
-                // ╭─────────────┬─────────────┬─────────────┬─────────────┬─────────────╮
+                // ╭────────┬──────────────┬────────────┬────────────┬────────────╮
                      &trans   &out OUT_TOG   &bt BT_PRV   &bt BT_NXT   &bt BT_CLR
-                // ╰─────────────┴─────────────┴─────────────┴─────────────┴─────────────╯
+                // ╰────────┴──────────────┴────────────┴────────────┴────────────╯
               >;
             };
+
+            rgb_layer {
+              display-name = "RGB";
+              bindings = <
+                // ╭───────────────────┬─────────────────┬─────────────────┬──────────────────────────────────┬────────╮
+                     &ext_power EP_TOG   &rgb_ug RGB_EFR   &rgb_ug RGB_EFF   &rgb_ug RGB_COLOR_HSB(307,89,98)   &trans
+                // ╰───────────────────┴─────────────────┴─────────────────┴──────────────────────────────────┴────────╯
+              >;
+              sensor-bindings = <&rgb_encoder>;
+            };
         };
 };

app/boards/shields/reviung5/reviung5.zmk.yml

@@ -7,3 +7,4 @@ requires: [pro_micro]
 features:
   - keys
   - encoder
+  - underglow