GuitarMLPedals & multi-FX
Stereo DIY guitar pedal platform for the Daisy Seed
Funbox is an open-source stereo digital guitar pedal design by Keith Bloemer of GuitarML, first released in 2024. Its PCB, with KiCad design files in the GitHub repository, hosts an Electrosmith Daisy Seed (an STM32H750 audio board) in a 125B enclosure with six knobs, three toggle switches and two footswitches.
Open hardware with KiCad design files in the repository (125B enclosure, about $120 to $150 to build per the README). Programs are loaded with the Electrosmith web programmer or a make target; some modules (Mars, Neptune) use SRAM and need the Daisy bootloader. Funbox effects have been ported to the Cleveland Hothouse.
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.
| Version | Date | Notes |
|---|---|---|
| main @ c0409dd (Cassini sampler) | 2026-07-10 | Latest commit; not yet a tagged release. |
| v1 | 2024-06-22 |