diff --git a/main.c b/main.c
index ad4a1ef..8a89ab1 100644
--- a/main.c
+++ b/main.c
@@ -2,6 +2,11 @@
 #include<stdbool.h>
 #include"tm4c123gh6pm.h"
 
+#define SW_bits 0x11
+#define RED 0x02
+#define BLUE 0x04
+#define GREEN 0x08
+
 
 /* Systick memory mapped registers */
 #define STCTRL *((volatile long *) 0xE000E010)      // control and status