Hey all! this is the first post I think I have ever made on a forum as I am stuck with how to proceed with my project.
I'm looking to build a USB MIDI foot controller for my iPad. I am a guitarist and need a footboard to change between patches on the app that I use (BIAS FX).
These midi signals as far as I am aware are in the form of (CC#) messages.
I have already learnt how to flash the Hiduino USB_Midi. Hex on to my Arduino Uno R3 (genuine before anyone asks) so that any device can recognise it as a native MIDI device. and I now understand the process required to upload sketches to the Uno as well.
That being said I am having trouble with the code required to make this work :(.
I have done numerous hours of researching, looking at other peoples code and trying to adapt it to my needs but unfortunately my efforts have been less than fruitful.
In a nutshell I would prefer to understand the code that I am writing, so wouldn't expect someone to just write it for me. that being said... any help at all would be greatly appreciated 
summary of what I need to achieve
The buttons I am using are momentary metal buttons. when a button is stepped on, a CC message Is sent to the iPad from the Arduino Via USB to change to a different patch.
I have read some where that I need 10k resistors and 470nF capacitors to make this happen
so I have 10 resistors, 10 capacitors and 10 buttons. and would preferably like to use them all if possible.
if it simple enough to implement then I also have an expression pedal too, this is connected by a 1/2" jack. (same as any guitar lead). and have the female housing for this cable. I believe the expression pedal is just essentially a potentiometer attached to a gear system.
I have attached a picture of what the app is asking me to do in order to program a button in to the the device.
I'm hoping someone on this forum will know something or someone that may be able to help me
Many thanks for any and all help in advance.
Aaron
