Relay

timncoxUpdated Oct 14, 20260 on GitHub

Alt Firmware
firmware
utility

Relay is MIDI-to-CV firmware for the Hermetic Modular Alchemy Lab Eurorack module (V2 panel). Notes and controllers sent from a computer over the front USB-C port come out of the Lab's eight CV jacks as 1 V/octave pitch, gates, triggers, velocity and modulation voltages, for one to four voices. The jack layout changes with the voice count, from a single voice with velocity, two assignable modulation outputs, trigger, clock and run or reset, up to four pitch-and-gate pairs. Pots set the MIDI channel or omni, voice count, note priority (last, lowest or highest), glide, pitch-bend range and clock division. A setup page assigns the two modulation sources (velocity, mod wheel, a chosen CC, aftertouch or pitch bend), the note that sits at 0 V, and what the last jack carries. Polyphonic modes allocate and steal voices, legato or retriggered notes can be chosen, and the clock output divides incoming MIDI clock while start, stop and song position are followed. B1 sends all notes off, and B2 steps a test note through fixed octaves for checking calibration. The USB port carries either MIDI or the computer link used for flashing and card access, chosen in settings and applied at the next power-up.

Compatible with

Alchemy LabHermetic Modular

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Relay

Compatible with

Links

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Secret

Wish

Mark

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Smack

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