diff --git a/src/main.cpp b/src/main.cpp
index cda09e7..0772496 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -28,10 +28,10 @@ const double k2 = -202.56;
 const double k3 = -295.53;
 
 const int lc_clock = 23;
-const int pin_lc0 = 14;
-const int pin_lc1 = 15;
-const int pin_lc2 = 19;
-const int pin_lc3 = 20;
+const int pin_lc0 = 14; // Yellow
+const int pin_lc1 = 15; // Green
+const int pin_lc2 = 19; // Black
+const int pin_lc3 = 20; // White
 
 const int chipSelect = BUILTIN_SDCARD;
 File dataFile;