[ILUG] Serial Port

[Kenn Humborg]

> char a_string[15] = "today is april ";
> int date = 11;
> sprintf(outgoing_msg,"%s %d",a_string,date);
>  
> bytes_written = write(serial_port_fd,outgoing_msg,255);
> 
> outgoing_msg isn't 255 long but is padded with zeros;

Don't send a bunch of zeros unnecessarily.  Write the
correct number of bytes:

   char a_string[15] = "today is april ";
   int date = 11;
   int bytes_to_write;

   bytes_to_write = sprintf(outgoing_msg,"%s %d",a_string,date);
 
   bytes_written = write(serial_port_fd,outgoing_msg,bytes_to_write);

Later,
Kenn