bare ported code
deleting some functionality and simplifying the code
some notes on which functionality is deleted and why
arduino adaptations
dos2unix
more adaptations and optimisations
adding a first vibrato version that does something
1. Lower interrupt frequency (8192Hz)
   to allow more computational power.
2. Use potentiometers for the vibrato.
smoother saw tooth, minor fixes
low-pass model
minor fixes
minor bugfixes in the low-pass filter
adding a makefile and performing optimisations
minor bugfixes and higher frequency
adding the low-pass filter ramp
some more fixes to the low-pass stuff