Double VCO eurorack module

Dual voltage controlled oscillator eurorack module based on board clone arduino nano.
The module has two independent oscillators. Each is adjustable from 0Hz to approx 10kHz. The frequencys of the oscillators can be set with the knobs marked TUNE FREQUENCY.
Option to set 5 different shapes: SAW, SQUARE, TRIANGLE, SINUS and WHITE NOISE
Switchable octave range -1, 0, +1
The input labeled CV IN serves as a VCA. It is used to continuously adjust the OUT output volume. 0V = silence, 5V = maximum output volume. The GATE signal from the keyboard or the output from the envelope, or LFO can be connected to the CV IN connector.
The connector labeled V/OCT IN is used for keyboard pitch control, it is intended for output from the keyboard, which outputs a calibrated signal of 1V per octave.
The connector labeled OUT serves as an oscillator output, which can be further processed with a filter or other effect, or directly connected to a mixer.

https://www.etsy.com/listing/1685683312/double-vco-eurorack-module-2osc-nano