This simple sketch turns Euroduino into square wave VCO. To build this project you need the NewTone library.
Controls
- POT1: Coarse tune within 1 octave
- POT2: CV2 modulation depth
- SW1: Octave switch (0, +1, +2)
- SW2: Range switch (0, +3, +6) (same as octave, but wider)
- CV IN1: Exponential modulation, 1v/oct.
- CV IN2: Exponential modulation, adjustable with pot 2
- DIG OUT2: Audio out (With DC offset)