Index: firmware/App/Common.h
===================================================================
diff -u -r6c60d0d0300828750c76f2e397d4e7ccaa84bbb2 -r1c80d60fe6a95297a8a8033a3c7eade53e72779a
--- firmware/App/Common.h	(.../Common.h)	(revision 6c60d0d0300828750c76f2e397d4e7ccaa84bbb2)
+++ firmware/App/Common.h	(.../Common.h)	(revision 1c80d60fe6a95297a8a8033a3c7eade53e72779a)
@@ -85,12 +85,18 @@
 #define MASK_OFF_LSW                    0xFFFF0000
 #define SHIFT_8_BITS_FOR_BYTE_SHIFT     8
 #define SHIFT_16_BITS_FOR_WORD_SHIFT    16
+#define MASK_OFF_NIBBLE_LSB             0xF0
+#define MASK_OFF_NIBBLE_MSB             0x0F
+#define MAX_DOUBLE_DIGIT_DECIMAL        99U
+#define MAX_SINGLE_DIGIT_DECIMAL        9U
+#define SHIFT_BITS_BY_4                 4U
 #define FLOAT_TO_INT_ROUNDUP_OFFSET     0.5
 #define ML_PER_LITER                    1000
 #define MS_PER_SECOND                   1000
 #define SEC_PER_MIN                     60
 #define FRACTION_TO_PERCENT_FACTOR      100.0
 
+
 // **** Common Macros ****
 
 #define FLOAT_TO_INT_WITH_ROUND(f)      ((f) < 0.0 ? (S32)((f) - FLOAT_TO_INT_ROUNDUP_OFFSET) : (S32)((f) + FLOAT_TO_INT_ROUNDUP_OFFSET))