===== Fatsquare =====
Mixed Analog / Digital Sytnh with HW controls.

==== Concept ====
Functions :
  * Dual Square Wave Osc
  * Individual A/R control + Mix 
  * Osc Fine + Coarse detune
  * Duty Cycle A/R modulation
  * Analog 2nd order LPF with Freq and Cutoff control

==== Functions ====

==== Schematic ====

==== Design ====