We published an article in Nuts & Volts magazine which explained how to build
and program an RS-232 serial I/O board. This 2-part article appeared in the
February and March 2001 issues, and the companion web page can be found
If you have a technical support question, please be sure that you first check
your product's manual or documentation for information. If the question is still unanswered,
you may contact Winford Engineering about your problem. See the
Contact page for more information.