'8','9','A','B',
'C','D','E','F'};
+char hexdigit_tab_uc_P[] PROGMEM =
+ {'0','1','2','3',
+ '4','5','6','7',
+ '8','9','A','B',
+ 'C','D','E','F'};
+
+
+char hexdigit_tab_lc_P[] PROGMEM =
+ {'0','1','2','3',
+ '4','5','6','7',
+ '8','9','a','b',
+ 'c','d','e','f'};
+