I went to the website of the expansion board but there are only pictures
of the schematics.
I would like to know if the designer/developper is working on it because
I was planning to build one.
If you're talking about the extension board from Thomas Breuer I can give
you good news. Thomas is now ready for the final steps and he's making some
last modifications before he will place an order for a small series of his
pcbs. As soon as he knows a definite date (sometimes in the near future) I
will post a msg to the list and ask who is interessed in his PCB with
detailed information (price and features). We will then place an order for
the pcbs. But be aware that you will get only a "naked" pcb and maybe the
programmed PIC. This pcb is only useful for people who know what they are
doing (wo die heisse Seite vom Lötkolben ist).