1 files changed, 19 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 000000000..fb90b66bd
--- /dev/null
+++ b/quantum/rgb_matrix_animations/breathing_anim.h
@@ -0,0 +1,19 @@
+#pragma once
+#ifndef DISABLE_RGB_MATRIX_BREATHING
+
+extern rgb_config_t rgb_matrix_config;
+
+bool rgb_matrix_breathing(effect_params_t* params) {
+  RGB_MATRIX_USE_LIMITS(led_min, led_max);
+
+  uint16_t time = scale16by8(g_rgb_counters.tick, rgb_matrix_config.speed / 8);
+  uint8_t val = scale8(abs8(sin8(time) - 128) * 2, rgb_matrix_config.val);
+  HSV hsv = { rgb_matrix_config.hue, rgb_matrix_config.sat, val };
+  RGB rgb = hsv_to_rgb(hsv);
+  for (uint8_t i = led_min; i < led_max; i++) {
+    rgb_matrix_set_color(i, rgb.r, rgb.g, rgb.b);
+  }
+  return led_max < DRIVER_LED_TOTAL;
+}
+
+#endif // DISABLE_RGB_MATRIX_BREATHING