created separate function for hex to char

Dependencies:   SDFileSystem ds3231 eeprom_Nikita mbed testUniGraphic_150217

Fork of SS_SensePOC2P0_11Dec2017_USERPID by rashmi v

Revision:
76:611154b3b597
Parent:
72:1f990fa8c516
--- a/main.h	Mon Dec 11 12:24:19 2017 +0000
+++ b/main.h	Tue Dec 12 11:13:10 2017 +0000
@@ -85,7 +85,5 @@
 uint8_t get_did(void);                                                          //get device ID
 
 
-void ascii_to_hex(const char *input_buf, uint8_t len);
-
 #endif