Move lines 16 and 17:
two_character_string[0] = c;
two_character_string[1] = 0;
into the function where you try to use the array, just before
LCDString(two_character_string);
That should make all the error messages go away.
Move lines 16 and 17:
two_character_string[0] = c;
two_character_string[1] = 0;
into the function where you try to use the array, just before
LCDString(two_character_string);
That should make all the error messages go away.