pif- ̶s̶o̶v̶i̶e̶t̶-ukraine-synth-hack Notes. Falstad diagram. -10V / +10v to +5V to use for cv to arduino/esp analog pin http://tinyurl.com/y6vy6alc Ore import the diagram/Falstad-cv_to_5v_circuit-20181018-2323.circuitjs.txt at falstad.com.