With a configured HIDUINDO on a uno you would have a device with

In/out DIN MIDI
USB A jack that you can hook up to a mac/pc/ios device that can be a usb host.

No splicing needed!

USB is USB.  It's just the shape of the jack that changes. It's easy enough to get adapters to switch between USB A, B, and Micro. Or I can just splice one type of cable to another as needed.

If you want both, then don't you need a female USB type A socket on there?

The Hiduino project works by turning the EXISTING usb jack that is normally used for programing into a USB MIDI device. You should be able to get it working with the catskull project and a ftdi cable and no other parts. You are going to have to mess with some code more likely than not.

Both. I want a device that allows me to connect my DMG to any other MIDI device.

Do you want to be able to plug in a USB MIDI device into your arduinoboy? Or you just want to be able to plug the arduinoboy into your computer and have it show up as a midi device?

What I'm trying to achieve: A single Arduinoboy type device with MIDI Through USB, and also MIDI In/Out/Through 5 pin jacks. All for under $25 cost.

The reason I'm starting with the UNO is because I'm almost certain I can get it to work by combining the Hiduino project with Trash80s Arduinoboy or Teensyboy code. Then it's as simple as putting a Shieldboy on top of that. The only thing I'm missing is MIDI through on the USB. For that I will need to use an Arduino DUE because it has the two USB ports on the board. If I can get MIDI to run on the DUE, I will then need to make a custom Shieldboy. as it has a different footprint than the UNO. In other words, the UNO is the low hanging fruit, and anything I learn doing that should help me accomplish the DUE.

Wish me luck.

i think you are making it too complicated. If the due works for usb host and midi what would you need the above for?

In other words what all are you trying to connect?

Let me revive this thread. Someone linked to it in another post, and I realized that I had recently seen a solution:

Anyone trying this can go with the original proposed solution of using a regular Arduinoboy, and then get the MIDI to USB adapter to work by hacking it like this:

http://makezine.com/2010/09/10/send-mid … for-cheap/

My goal is to get the Arduino UNO to act as a MIDI USB device simply through the programming, no extra hardware needed. Once I've solved that, I'm going to attempt to get an Arduino DUE to do the same thing, only since it has two USB ports, I'm hoping I can get it to do MIDI-through, instead of just MIDI-in.

Another update for the sake of anybody who is trying this out later on.

I tested using the Midicloro app from ledfyr on a Raspberry Pi, using the Nanoloop USB Midi adaptor rather than connecting via the Arduinoboy, and it works! So a cheaper option to get USB MIDI devices to work for those who don't have an arduinoboy...

My Launchpad works as an input device as well, but the default note settings are all messed up, so it will require some more research to work out how to re-map the keys in Linux (only Windows/Mac are supported officially - boo.)

No problem!

I've ended up with all the parts for the Arduino shizz as well, so going to try building that as a side-project.

Glad to hear you got it working!  Can you confirm if the nanoloop usb adapter works with the Raspberry when you get it? (it should)

After chatting with ledfyr, I've re-flashed the Raspberry Pi and all is working perfectly! I've now got a neat wee headless USB-MIDI converter. I've ordered a Nanoloop USB-MIDI link cable adaptor to see if I could use that in place of the Arduinoboy as an experiment too.

Thanks a lot for the help!

So, I ended up getting a raspberry pi and the USB-MIDI cable. Connected it all up via aconnect, and I can see that the MIDI messages are getting routed correctly. Result! Problem is now that there's no sound coming out. I know that the Arduinoboy works fine, so I suspect it must be a channel mis-match. Trying to work out how to switch the channel at the minute as the USB keyboard I have doesn't have any hardware controls that do it (it's an Akai LPK25).

I did try to use the software at http://chipmusic.org/forums/topic/17404 … l-routing/ - but I'm hitting an error about a dependency that I've dropped you a PM about Ledfyr:

'./midicloro: error while loading shared libraries: libboost_system.so.1.55.0: cannot open shared object file: no such file or directory.'

Damnit, I've bought the components for the Arduinoboy now. I've saved the link though and will probably come back to it when I throw it out the window due to my crappy soldering.