Goals of this project:
Experiment with a key scanning matrix.
Create a portable drum/sample pad akin to the MIDI Fighter 64 but significantly cheaper.
What was learned from this prototype:
A 49-key interface might be overkill, unless you are very dedicated to sampling. For finger drumming, a 16-key pad is plenty.
An iPad will bus-power the Arduino Micro, unlike the Arduino Due.
Printing the case with mating screw wells allows for sturdier construction, and much easier maintenance.
There isn't much to say about this one. I learned more about case design from building this, and gained a lot of useful knowledge from the key scanning matrix, but I rarely played it after completion, instead preferring to finger-drum on the DrumFighter Nano. Most of the uniqueness from the number of keys was immediately made redundant by implementing a drums mode in Melodicade Prototypes #2 and #3. It collected dust on a closet shelf for 6 months before being destroyed to harvest its precious buttons.