[sdiy] Midi continious controller gennerators / controler surfaces?

[Julian]

Hi there,

Now ive had my eye one some sort of control interface, primarily to generate
continuous controllers, for some time.  Something along the lines of
doepfer's drehbank, or the various kenton offerings.

Ive had a brief look about, but haven't been able to find a diy alternative.

Im looking for something that's in a reasonable state of maturity, possibly
where i can download some files and program a PIC or whatever.  Now im
surprised i haven't found anything....

Additionally...

Midi lfos etc.  Just small standalone devices thatll throw out an lfo on [x]
channel, [y] cc# or something like that?


Any comments?

Cheers, Julian