Arduino to MIDI device adaptation

ektopia · April 23, 2024 at 6:17 PM

A few years back, I build an Arduino Leonardo powered footstwitch board that I used to use with Native Instruments' Guitar Rig. The Uno has MIDI over USB and after some programming (with a lot of help from http://www.musiconerd.com), it all came together fine. I'm now wondering if I could reprogram it and use it with my new Kemper Player. I'm struggling to get it working as it was at the moment but the bottoms latch on to MIDI data in Guitar Rig. Anyone doing/done anything similar? Any reason that I will be unable to get it working with the Player?

slateboy · April 23, 2024 at 7:59 PM

take a look here:

Thread

Player extended midi control demo and how to show slot-names

Warning, nerd alert for all midi enthusiasts and system-exclusive geeks alike...

Using an external midi controller can gain extra functionality to your Player, including a level boost without consuming an FX slot.

You can even display the names of the Kemper Player on a screen or midi controller.

youtu.be/BVFuOkYalKA

slateboy

March 7, 2024 at 7:11 PM

ektopia · April 23, 2024 at 10:29 PM

Thanks for this. Really interesting/mindblowing! I can see that it’s possible now. However, I’m really more interesting in the midi over USB side of things. I plug in my board directly into the computer and can use along with Guitar Rig. I’m interested to know if I can connect the usb from the board directly to the Player and get similar functionality out of it.

Burkhard · April 25, 2024 at 8:53 AM Official Post

The Player supports USB MIDI host (USB A port) as well as client (USB B port).

slateboy · April 25, 2024 at 1:33 PM

Quote from ektopia

However, I’m really more interesting in the midi over USB side of things.

I recall seeing somewhere how you can get an arduino to be recognised as a class-compliant midi device by re-flashing the device.

On their own, certain ones can appear to windows PC as midi device but not to the Kemper without some in-depth tinkering.

ektopia · May 1, 2024 at 11:22 PM

Quote from slateboy

I recall seeing somewhere how you can get an arduino to be recognised as a class-compliant midi device by re-flashing the device.
On their own, certain ones can appear to windows PC as midi device but not to the Kemper without some in-depth tinkering.

Thanks for this. Do you mean re flashing the arduino or the Player?

Looperman · May 2, 2024 at 11:19 PM

For what I know ...not all Arduino are equal on this ....micro Pro works natively as usb midi device tested on my Mac and it works with a a minimal effort.

MIDI control surface tttapa

https://github.com/tttapa/Control-Surface works great...the program should be configured with the proper control and it's actually not that difficult... the real issue is, for me to decrypt the Kemper manual to get the proper control number for your needs.

My dreams is to control delays real time while I'm playing with 12 real pots making dreamy ambient things...working on this .

Any additional sharing brainstorming or help on the issue will be appreciated.

slateboy · May 5, 2024 at 11:55 AM

Quote from ektopia

Thanks for this. Do you mean re flashing the arduino or the Player?

it involved re-flashing the arduino firmware. I've never done that kind of thing before so cant comment further. Would be a great solution for the DIY enthusiast,

gstrotmann · May 5, 2024 at 6:38 PM

I didn't use an Arduino but a Raspberry Pi Pico.

Perhaps you can adapt something from my code.

Here is my diy project: Custom Firmware for PaintAuido MIDI Captain MINI 6

slateboy · May 5, 2024 at 9:40 PM

Quote from gstrotmann

I didn't use an Arduino but a Raspberry Pi Pico.
Perhaps you can adapt something from my code.
Here is my diy project: Custom Firmware for PaintAuido MIDI Captain MINI 6

So you have reverse engineered the midi-captain? ie, you managed to use the hardware with your completely your own code?

If so, very interesting!

gstrotmann · May 6, 2024 at 6:33 AM

Quote from slateboy

So you have reverse engineered the midi-captain? ie, you managed to use the hardware with your completely your own code?
If so, very interesting!

Yes, I tried to configure the used GPIOs and libaries. And than I had to learn needed commands in python...