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Funbox

Firmware for Funbox (GuitarML)

Firmware and PCB design for GuitarML's stereo Daisy Seed pedal. Planet-series modules include NAM and RTNeural amp sims, reverbs, delays, a dual looper, spectral and granular effects, a plate reverb with octave and a MIDI synth.

by Keith Bloemer (GuitarML)

ActiveSource: openMIT
Mars - Amp Sim and Delay for Funbox · GuitarML · via youtube.com · linked from github.com
Distribution
Prebuilt image you flash yourself
License notes
LICENSE.txt, copyright Keith Bloemer 2024. Submodules such as DaisySP, libDaisy and RTNeural carry their own licenses.
Source
github.com https://github.com/GuitarML/FunBox

Description

Modules named after planets: Mercury (Neural Amp Modeler amp with 4-band EQ), Venus (spectral reverb), Earth (plate reverb with octave and overdrive), Mars (amp sim and delay), Jupiter (reverb), Saturn (spectral delay), Uranus (granular delay and FM synth), Neptune (reverb and delay) and Pluto (dual looper). A MidiKeys synth is shown in the video demos; the README also lists chorus/reverb and FFT-filter experiments, and the repository has recently added a Cassini sampler. Prebuilt .bin files are on the release page, which still has only the v1 tag from 2024.

Install notes

Flash a release .bin with the Electrosmith web programmer or `make program-dfu`; Mars and Neptune use SRAM and need the bootloader method.

Version history

Funbox version history
VersionDateNotes
main @ c0409dd (Cassini sampler)2026-07-10Latest commit; not yet a tagged release.
v12024-06-22

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