[sdiy] MIDI bass pedals update

[David Brown]

I've finished the cabinet and the first pass on code for the MIDI bass
pedals.  I've uploaded some new photos and a user manual.

http://home.earthlink.net/~djb-synths/DJB-Bass_Pedals/

I have evolved the code a bit and did add portamento only to discover
I don't have a single MIDI synth that implements it.

I would like to expand my arpeggiator.  Right now all the notes are the
same duration.  I started modifying the code to implement a variable
tempo and decided I should really think through what I want it to do.
Will take any suggestions on this.

These hammond pedals work great.  They're large but they're rugged.

Dave