So guys... I made a simple design of the project... It looks like this:
A: General control section (play, stop, back to arrangement etc)
B: Rotary encoder for banks selection
C: General controls for knobs over the pads (pan, gain, send a & b)
D: Sample pads
E: Fader & crossfader section
F: Mappable pots & switches
G: Data display
So, i know that this may be hard to be realized and this is only an idea... I can take out 3-4 channels, some pots 6 buttons and the display if it will be necessary.
So, what do you think about this?
PS: today I'm going to order my arduino uno with an expansion shield... Which I/O expansion shield is good for this project? Or i should buy only the arduino board and use multiplexed Inputs to make this project?