Midi pedalboard into usb

hi everybody.
I attempt to make this MIDI control for the ZOOM G3 - YouTube .
I would to use a midi pedalboard, not the potentiometer. Somebody know how?
I 'm not expert with Arduino.

Use a MIDI Input to get signals from the pedalboard.

Use those signals in place of the potentiometer to get the results you want.

I would to use usb host shield. Is it possible?

loris760:
I would (like) to use (a) usb host shield. Is it possible?

Not only possible but necessary. The project you pointed to uses a USB Host Shield V2. I would recommend using the same device, if possible, to avoid extra work.

Sorry John, i don't speak english so well.

So i use arduino uno+ usb host shield v2+ libraries that you post and it might work?

loris760:
Sorry John, i don't speak english so well.

So i use arduino uno+ usb host shield v2+ libraries that you post and it might work?

You will need to build a little bit of hardware for the MIDI interface. Put them all together and you should be able to write a sketch that will allow you to control the guitar pedal with your MIDI pedalboard.