void str_reverse(char* buffer);
char* ultoa(unsigned long a, char* buffer, uint8_t radix);
-
char* ulltoa(unsigned long long a, char* buffer, uint8_t radix);
-
-char* ustoa(unsigned long a, char* buffer, uint8_t radix);
+char* ustoa(unsigned short a, char* buffer, uint8_t radix);
// void strlwr(char* s);