I am making a thing. A “polyphonic” (three note) MIDI to CV adapter. Its super old school strip board construction. The image is of the display/control board and the microcontroller MIDI board. The CV, gate and trigger board is under construction.

I am using an AT Mega 328P as the microcontroller. Three MCP22008s for the 7 segment displays and to drive the gate and trigger transistors. And a bunch of MCP4822 dual DACs feeding in to TL07x OpAmps for the CV outputs.

For pitch and pitch bend I am using two channels via differential amplifiers to provide a -4V to 4V, volt per octave range. Everything else is 0-4V.

The UI allows you to set OMNI mode or midi channel, octave adjust and polyphony on or off. It uses a first available scheme (like the Jupiter 6).

It has MIDI in (naturally), Thru and Out. Out is like Thru but is just the common or unhandled messages. This means you can cascade (out in to in on a second converter) to support more than three notes.

Ahoy!

We will be operating ADSL, VDSL and GPON services at EMF in a limited trial area in Camping C2.

You can even wholesale your own service over the top!

Docs on getting connected are here - https://docs.cutel.net/events/emf26/internet_services/

#emfcamp #emfcamp2026