Betweener

Open source programmable module based on Teensy 3.2

The Betweener is an affordable, open-source, DIY module (Eurorack-compatible) for use in synthesis and multi-instrument systems. It combines the flexibility of a Teensy 3.2 (programmable using the Arduino IDE) with four built-in Control Voltage (CV) inputs, four Trigger inputs, four knobs, and four CV outputs. Via USB MIDI or an add-on DIN MIDI breakout, the Betweener enables MIDI-to-CV and CV-to-MIDI conversion in a highly customizable and hackable format.

The hardware and software were developed at the School of the Art Institute of Chicago for use in the Sound Department course Selected Topics: Analog/Digital.
For example, the Betweener can be used to:

Translate MIDI CC signals (e.g. from a foot pedal) into CV outputs from 0 to 5 volts

Use external triggers to trigger custom-programmed MIDI note sequences

Take input from a variety of Teensy-compatible external sensors  (e.g. motion sensors, light sensors, etc.) and convert information into  MIDI or CV outputs

Use programmable knobs to modulate any CV-controlled or MIDI-controlled instrument

Easily communicate between modular synthesizers and digital audio workstations such as Ableton Live and Reaper

Kit available at https://www.tindie.com/products/werlekyle/betweener-full-kit/#specs

https://josephmkramer.com/betweener