MiniAcid for Cardputer ADV

Multi-purpose View the repo

MiniAcid is a compact acid‑groovebox firmware for the M5Stack Cardputer ADV that offers two TB‑303‑style synth voices and an 808‑style drum section, each with 16‑step sequencers, live muting, and pattern/song arrangement, all controllable via the Cardputer's built‑in keyboard and screen.

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108 stars · 7 forks

Maintainer
urtubia
Chip families
esp32-s3

Runs on these boards

Unverified

  • CardputerUnverifiedM5Stack
    Flash Cardputerguided

    Unverified esp-atlas asserts this board↔firmware link at the shown trust tier — it does not guarantee your specific unit or the current firmware version. Flashing can erase keys/config and can brick the device. At your own risk.

README

MiniAcid

MiniAcid is a tiny acid groovebox for the M5Stack Cardputer. It runs two squelchy TB-303 style voices plus a punchy TR-808 inspired drum section on the Cardputer's built-in keyboard and screen, so you can noodle basslines and beats anywhere.

Go play with it: https://miniacid.mrbook.org

What it does

  • Two independent 303 voices with filter/env controls and optional tempo-synced delay
  • 16-step sequencers for both acid lines and drums, with quick randomize actions
  • Live mutes for every part (two synths + eight drum lanes)
  • Pattern and song arrangement system

Using it

On the M5Stack Cardputer:

  1. Flash miniacid.ino to your M5Stack Cardputer ADV (Arduino IDE)
  2. Use the keyboard shortcuts below to play, navigate pages, and tweak sounds.
  3. Jam, tweak synths, sequence, randomize, and mute on the fly

On the web:

  1. Go to https://miniacid.mrbook.org

For more detailed instructions, see the Manual.

Read the full README on GitHub

source github.com/urtubia/miniacid