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RP2040 VCO (Clone, made by Hagiwo)

VCO clone, originally made by HAGIWO (link in japanese)

RP2040 chord VCO clone in SMD.

5-polyphonic Chord VCO module. There are 8 types of tones. With a built-in quantizer and automatic harmonics function, if you input a suitable CV, it will play a nice chord progression.

Schematics

BoM

See bom globale

See bom board jack

See bom board circuit

build Informations

⚠️ When building modules, always do it in this order (from smallest component to highest):

• diodes
• resistors
• DIP chips
• capacitors (film/ceramic)
• Electrolytic capacitors

For the next part, always place them without soldering them on:

• jacks, pots and switches that go throught the front panel

Once placed, put in place the front panel, then fasten all components to it. Once this is done, you can solder them.

Build guide

Images