Thomas Magin wrote (of his LPT driven I2C interface):
>
> It was a project of an electronic journal called "elektor". The pcbs are
> still available. All you need in addition are some HCTs and a PCF8584 (and a
> crystal, resistors, caps ...). The software is included if you buy the pcp.
> Of course I can send it to you via email attachment before.
> I laughed at that project.

Why should I pay for hardware when it can be done in software alone?

Elektor is a hardware magazine. Software is seen as a necessary evil.

As a penny-pincher (professionally or personally!) I try to solve problems
with the minimum of hardware.