"Hello, World" Apps

Wall (spring with and without damping) - how stiff without instability? - does damping help?
Center (full range of force and position) - 

Music -
position -> pitch (linear, non-linear)
gain -> FSR (second device?)

Motor -
timed (open-loop) - "tick" "rumble" "
  ramp - up,stay,dn,stay, etc.
  rhythm - march, waltz, …
position - table/function (no time dependence) [ is this part of Motion?]

Motion - 
spring (position)
damping (velocity)
inertia (acceleration)