Hermetic Modular

The Hermetic Modular Blog

Eurorack Development, Daisy, and the Alchemy SDK

  2. Colorblind Palette Design for Eurorack Modules

    Red-green colorblindness turns an all-LED Eurorack panel into guesswork. Echoa v1.1.0 ships a colorblind-safe palette: every remapped pair, plus the code.

    accessibility · echoa · alchemy-sdk · ui-design

  3. Eurorack CV Calibration Without Test Equipment

    Eurorack CV calibration usually means a meter, a trimmer, and a bench. The Alchemy Lab measures and corrects its own CV jacks in fifteen seconds instead.

    alchemy-lab · alchemy-sdk · hardware-design

  4. Capicola: first look

    First look at Capicola: keyframe time stretching, an order of magnitude cheaper than a phase vocoder, running on Daisy in the Alchemy Lab. Video, paper, code.

    alchemy-lab · alchemy-sdk · daisy · open-source-eurorack

  5. Alchemy SDK v0.9.0: The First Versioned Release

    Alchemy SDK v0.9.0 is the first versioned release: live-module flashing, longer param locks, ButtonBank, new docs, plus Echoa 1.2.0. Watch the demo.

    alchemy-sdk · alchemy-lab

  6. Field-Programmable CV Jacks

    How the Alchemy Lab makes field-programmable CV jacks work: the analog switch circuit, three DAC backends, and what firmware-defined Eurorack I/O unlocks.

    alchemy-lab · alchemy-sdk · hardware-design

  7. WS2812 Without PWM: Driving 102 LEDs With TIM6 and DMA

    PD11 has no timer PWM channel, so Alchemy Lab drives 102 WS2812 LEDs with TIM6 update events, DMA writes to the GPIO BSRR register, and one MPU trick.

    alchemy-sdk · hardware-design · embedded-engineering · daisy

  8. A Production Eurorack Instrument in 117 Lines of C++

    A stereo EQ with pot catch, presets, CV routing, LED rings, and looping automation in 117 lines: a walkthrough of Eurorack firmware on the Alchemy SDK.

    alchemy-sdk · open-source-eurorack · daisy · tutorial

  9. Announcing Hermetic Modular: Open Source Eurorack

    Hermetic Modular launches the Alchemy Lab platform: field-programmable Eurorack hardware, the open source Alchemy SDK, and two instruments, Echoa and Spagyros.

    announcement · alchemy-lab · alchemy-sdk · open-source-eurorack