little clean up

include/RdsPiBuffer.hpp

@@ -3,8 +3,7 @@
 
 #include <stdint.h>
 
-class RdsPiBuffer
-{
+class RdsPiBuffer {
 public:
     enum State : uint8_t {
         STATE_CORRECT     = 0,

include/utils.h

@@ -0,0 +1,13 @@
+#pragma once
+#include <Arduino.h>
+#include <math.h>
+#include <stdint.h>
+
+struct HSV {
+  float h;
+  float s;
+  float v;
+};
+
+HSV RGB565toHSV(uint16_t color);
+uint16_t HSVtoRGB565(float h, float s, float v);