Generative Ambient CV Sequencer for AE Modular

An event-driven, multi-lane generative CV module experiment for the AE Modular 0-5 V ecosystem.

This repository is both a build log and a clean-room reimplementation study. It is also an intentional homage to the people and communities whose ideas, patience, care, and technical generosity made the work possible. See CREDITS.md and SOURCES.md for attribution and provenance.

Current Status

Prototype documentation and firmware scaffold. The design has KiCad hardware files, panel artwork, PWM and DAC firmware variants, safety notes, and a draft bill of materials. Treat it as experimental until the validation checklist in EXPERIMENT.md has measured results attached.

What It Does

• Maintains three independent CV lanes that move only when events occur.
• Lane 1 steps on a rising gate or trigger.
• Lane 2 steps on a falling gate.
• Lane 3 steps on a CV threshold crossing, selectable above or below.
• Provides global offset, per-lane step amount, event probability, wrap or clip behavior, bounce modes, and resets.
• Outputs Lane 1, Lane 2, Lane 3, and a summed/averaged CV output.

Hardware At A Glance

• MCU: Arduino Pro Micro, ATmega32U4, 5 V.
• Output option A: PWM into RC filters and buffers.
• Output option B: two MCP4922 SPI DACs into buffers.
• Input conditioning is designed around AE Modular 0-5 V CV and +5 V gates.

The panel sketch in hw/panel-layout.svg targets a single-width AE-style module face. It should be treated as a working layout reference until the hardware and ergonomics are validated on a physical build.

Firmware At A Glance

• fw/ae_genseq.ino: PWM output build.
• fw/ae_genseq_dac.ino: MCP4922 DAC output build.
• Each lane has a delta value and a probability value. The edit-layer switch lets the same three lane pots edit either movement size or trigger probability.
• The bounce button cycles L2 only, L3 only, both, and none on release. Holding it for 0.8 seconds resets bounce to none without advancing on release.

Repository Map

• EXPERIMENT.md: purpose, hypotheses, protocol, validation checklist, and evidence log.
• HARDWARE.md: electrical notes, block diagram, suggested parts, and pin mapping.
• FIRMWARE.md: event model, UI model, firmware variants, and DAC wiring.
• BOM.md: prototype bill of materials.
• SAFETY_NOTES.md: AE voltage and interop cautions.
• CONTRIBUTING.md: contribution expectations.
• SUPPORT.md: support scope and issue-reporting guidance.

License Status

Licensing is not finalized. See LICENSE_PLACEHOLDER.md before reusing code, docs, schematics, or artwork.