I can't find elsewhere HA12187FP driver and can't test code for this driver.

Further more, the MAX202CSE can be replaced by a MAX233. The MAX 233 does not need any capacitors.
Ok. But MAX202 price is 3$ when MAX233 price is 13$.
I do not know if with these hardware changes, the firmware needs to be changed?
For MAX233 - nothing need to change.
I think the firmware does support everything we need. What I am still looking for is a plug in for Winamp to provide the information to the interface. Like artist name and song name that can be read out of the (MP3) ID3 tagges? And ofcourse it needs to controll the mp3's that are in the playlist of winamp....
Yes. Winamp... I thinking about support for it... Where I can find more time?..
Further more I think this interface is great!! If I had some more time (like in my student period)........
Thanks Vitat and the rest of the forum members.
Grz,
Dave
Thanks!!!