1 files changed, 20 insertions, 0 deletions
diff --git a/quantum/rgb_matrix/animations/breathing_anim.h b/quantum/rgb_matrix/animations/breathing_anim.h
new file mode 100644
index 0000000000..340bd93e5d
--- /dev/null
+++ b/quantum/rgb_matrix/animations/breathing_anim.h
@@ -0,0 +1,20 @@
+#ifndef DISABLE_RGB_MATRIX_BREATHING
+RGB_MATRIX_EFFECT(BREATHING)
+#    ifdef RGB_MATRIX_CUSTOM_EFFECT_IMPLS
+
+bool BREATHING(effect_params_t* params) {
+    RGB_MATRIX_USE_LIMITS(led_min, led_max);
+
+    HSV      hsv  = rgb_matrix_config.hsv;
+    uint16_t time = scale16by8(g_rgb_timer, rgb_matrix_config.speed / 8);
+    hsv.v         = scale8(abs8(sin8(time) - 128) * 2, hsv.v);
+    RGB rgb       = rgb_matrix_hsv_to_rgb(hsv);
+    for (uint8_t i = led_min; i < led_max; i++) {
+        RGB_MATRIX_TEST_LED_FLAGS();
+        rgb_matrix_set_color(i, rgb.r, rgb.g, rgb.b);
+    }
+    return led_max < DRIVER_LED_TOTAL;
+}
+
+#    endif  // RGB_MATRIX_CUSTOM_EFFECT_IMPLS
+#endif      // DISABLE_RGB_MATRIX_BREATHING