Added float map (might need debugging)

main/utils.cpp

@@ -330,3 +330,11 @@ std::string get_wifi_security_string(wifi_auth_mode_t authMode)
             return "unknown";
     }
 }
+
+float float_map(float x, float in_min, float in_max, float out_min, float out_max) {
+    const float dividend = out_max - out_min;
+    const float divisor = in_max - in_min;
+    const float delta = x - in_min;
+
+    return (delta * dividend + (divisor / 2.f)) / divisor + out_min;
+}

main/utils.h

@@ -79,3 +79,4 @@ inline CRGB UINT32_TO_CRGB(uint32_t color)
 }
 
 std::string get_wifi_security_string(wifi_auth_mode_t authMode);
+float float_map(float x, float in_min, float in_max, float out_min, float out_max);