Important note: Available as a fully built circuit or finish-it-yourself kit. For the kit, the SMD parts are already populated, the firmware is pre-programmed, and the SD card is pre-loaded with samples.
View the assembly instructions and bill of materials here.
The zeptocore is an open-source handheld device for playing with samples, featuring:
- stereo playback of 16-bit audio files @ 44.1 kHz sampling rate
- sd-card storage for up to 8 gigabytes of samples
- recalls up to 256 audio files (16 banks of 16 tracks)
- 16 different effects (saturate, fuzz, delay, reverb, etc…)
- single-cycle wavetable synthesizer
- realtime sequencer with optional quantization
- clock sync in (or midi sync with ittybittymidi)
- optional clock sync out
- tiny built-in speaker
- powered by two AAA batteries or USB-C
License & attributions:
- Apache License 2.0 for no-OS-FatFS (Copyright 2021 Carl John Kugler III)
- MIT license for the SdFat library (Copyright (c) 2011-2022 Bill Greiman)
- MIT license for the USB library (Copyright (c) 2019 Ha Thach)
- GPLv3 for all _core code
- Hardware: cc-by-sa-3.0