CVBoard is an expansion board for Arduino to create two Control Voltage (CV) signals useful to control modular synths.


CVBoard is a board designed to generate two Control Voltage (CV) signals using Arduino. This expansion module has two 3.5mm jack outputs from which it is possible to take two distinct CV signals, driven by Arduino’s digital ports, that support Pulse Width Modulation (PWM).

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The idea to develop this board was born from the curiosity to experiment with how to use an Arduino to control the oscillator of a Moogerfooger Ring Modulator pedal using Control Voltage. The board, in fact, was designed to produce two 0-5V variable signals, as required by the Moog standard.

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