Os programas abaixo encontram-se neste arquivo:\\
{{:cursos:introrobotica:2010-2:drushell.rar|Drushell}}

**math.c** -- standard math functions
    
**random.c** -- my random-number generator and your random() from lib_hb.c (you'll have to take it out of the latter to get the file to load, due to duplicate definition)
    
**serialio.c** --- your file, with standard comment headers (see below)
    
**debug_serialio.c** -- a debugging library for serial I/O which maps serial_putchar() to printf() and serial_getchar() to read from a buffer that you can fill with your own characters (with a debugging init_serial(char s[]) function)
    
**std_header.c** -- a standard library file comment header that I wrote and used for all the other library files. It's verbose and self- documenting you might want to consider it for the rest of the Handy Board libraries.
    
**conio.c** -- has high-level serial console I/O for reading and writing of strings and ASCII representations of numbers. The heart of it is an atof() I adapted to IC from the version in the standard library of the Hi-Tec C compiler for CP/M :-)

Outras funções podem ser obtidas no site: 

''Richard F. Drushel, Ph.D.            | "Aplysia californica" is your taxonomic
Department of Biology, Slug Division | nomenclature.  /  A slug, by any other
Case Western Reserve University      | name, is still a slug by nature.
Cleveland, Ohio  44106-7080  U.S.A.  |     -- apologies to Data, "Ode to Spot"''

OBS: Para trabalhar com as funções acima, desenvolvidas pelo Professor Drushel você pode consultar o  manual do IC modificado por ele. Mas cuidado! Ele usa Macintosh!! Outra sugestão é verificar o próprio código, que é bem comentado...