diff --git a/code/IP400/Inc/usart.h b/code/IP400/Inc/usart.h
index 679d83b..a823ff7 100644
--- a/code/IP400/Inc/usart.h
+++ b/code/IP400/Inc/usart.h
@@ -57,5 +57,6 @@ void USART_Print_string(char *format, ...);
 void LPUART_RxBuffer_reset(void);
 size_t gpsbuffer_bytesInBuffer(void);
 DATA_ELEMENT gpsbuffer_get(UART_TIMEOUT_T timeout);
+void LPUART_Send_String(char *str, uint16_t len);
 
 #endif /* INC_USART_H_ */
diff --git a/code/IP400/Inc/utils.h b/code/IP400/Inc/utils.h
index 8b1fa84..85ddb7d 100644
--- a/code/IP400/Inc/utils.h
+++ b/code/IP400/Inc/utils.h
@@ -29,6 +29,9 @@ int ascii2Dec(char *dec);
 // and its double counterpart...
 double ascii2double(char *val);
 
+// hex to ascii
+void hex2ascii(uint8_t hex, char *buf);
+
 // check an entry for floating point
 BOOL isfloat(char *val);