MicroGroove - DIY Pocketable Groovebox & Sampler

Designer

makarov

Designer relation

Followed

Kategori

Hobby & DIY

Licens

Standard Digital File License

$ ↺

Se platformens konkrete vilkår.

Designer commercial

MakerWorld Commercial License

Først set

2026-07-15 10:58

Sidst set

2026-07-15 10:58

Tags

ESP32 ESP32-S3 cardputer cardputer adv m5stack electronics musicalinstrument music beat beatbox drum drums drum machine drummachine groovebox groovebox stand musicinstrument

Beskrivelse

Microgroove turns the $30 M5Stack Cardputer-ADV into a four-track groovebox: three synth tracks (each switchable between a mono 303-style voice with slide & accent, and 3-voice polyphony for chords), eight drum lanes of 808/909 synthesis or sample playback, live mic sampling, and resampling of its own output. This listing is the shell and keycap label system that makes it playable — the free, open-source firmware lives on GitHub: https://github.com/matoslav/MicroGroove It fits the M5Stack Cardputer-ADV specifically. The screen, USB-C port, and headphone jack all stay fully accessible after the swap. Printing Print with a 0.2 mm nozzle (strongly recommended). A 0.4 mm nozzle works, but the fine label text won't come out clean. The parts: Top + label top — the two-piece face. The label top is multi-color (blue / red / white). Keys — the keycaps, also multi-color. Bottom — optional. Table stand and box with instructions — optional extras. The label top and keys need a multi-color setup (AMS / multi-material or manual filament swaps). If you only print in one color, you'll still get a working shell, just without the colored labels. Assembly Glue the top and the label top together, slide in the keys, and swap the assembly for the original top your Cardputer-ADV came with. Two screws hold it in place — gluing the two face pieces matters because without it the edges lift. What the firmware does Three acid synth voices — saw/square/tri/sine plus 16 wavetables through a resonant 303 filter. Flip any track from mono squelch to 3-voice chords. Eight drum lanes — 808 and 909 synthesis or your own samples, side by side. Tune, decay, and choke each one. Sample the room — hold one key, watch the level meter, release. It's already playing on a lane. Resample yourself — bounce the live mix onto a pad and build the next layer on top. Sequence and arrange — 8 patterns of 16 steps, clone with a hold, chain up to 64 into a full song. Ready to play out of the box — the SD image on GitHub ships a five-pattern demo track and a CC0 sample pack. Membership I you want to sell my prints commercially, please subscripte to my commercial membership. Join Boost Me (for free) If you like my design, consider giving me a boost. But even if you don't, nothing warms my heart more than seeing your pictures of succesful prints, thank you! Boost