Free Modular
This repository contains open source software and hardware schematics for Eurorack modules which are designed to be assembled easily and cheaply without any technical knowledge. Every module should be able to be assembled for around $20 in about an hour of work, even with limited experience.
| Module | Description |
|---|---|
| Clock | A basic, 8-channel clock source with adjustable tempo, phase shift, pulse width, and swing. |
| Envelope | A simple but powerful envelope generator that can cycle between 4 separate modes: traditional ADSR, AR with tunable curves, and two looping modes. |
| RNG | A module for creating semi-looping, randomized CV and gates. Inspired by the Turing Machine |
| Offset/Atten | A utility module to scale, shift, and invert signals. |
| Mixer | A 5-input active mixer for audio or CV. Can be daisy-chained together for larger mixes. |
| Output | A stereo line out and headphone amp with VU meter |
| Drift | A modulation source for creating organic, always changing, never repeating control voltages. The main algorithm is based on Perlin noise, but there are three other algorithms to choose from if you want a different flavor. |
| Boost | A distorting, overdriving analog amplifier. Can be used to boost line-level or microphone signals with gentle overdrive, or to heavily distort Eurorack audio. |