Aciduino

Easy assembly, maximum fun! Get your sequencer up and running in under an hour with this minimalist barebone build of a fully functional step sequencer and MIDI controller.

Expand the control capabilities of your sequencer by adding up to 24 buttons/LEDs, enabling a full set of real-time editing functions, similar to those found on a TR-808.

Expand your MIDI controller interface with up to 16 potentiometers!

Keep your Aciduino safe on the road! All the 3D print files and schematics are available!

The first version of Aciduino, which introduces two tracks of the TB-303 sequencer, a melodic lines generative engine, and a MIDI controller.

A PCB mount of the first Aciduino release, available for order directly from the Pusherman website.

Using a hardware timer to achieve real-time, professional-grade timing for both internal and external synchronization. Send or receive clock signals, keeping all your gear tightly synced.

Generate acid pattern sequences at the push of a button and by twisting some parameters. Harmonizer for melodic tracks and Euclidean algorithm for drum tracks.

Inspired by Ableton Live's Scene mode, the sequencer allows you to freely recall any track pattern or entire pattern scene using a navigable grid system, just like Ableton Live's Scene mode.

Create up to 4 mute states within a pattern scene. The first sequencer in history to include such a feature. Craft intros, build-ups, and drops to maximize the use of a single pattern scene.

The most affordable MIDI controller you can build, controlling up to 16 parameters per track on your external synthesizers (bass/drums).

Add TR-909 swing to your drums and basses for shaking tracks. Aciduino uses the same algorithm that gives the TR-909 its groove signature!

You can choose how many TB-303 and TR-808 tracks to use, up to 16 tracks and 512 steps. Go way beyond what the original Roland machines have to offer.

Don't be stuck with the original barebone layout. Easily create your own hardware layout and user interface. Adding and removing features is a breeze with Aciduino's modular architecture.

Real-time and step recording modes for MIDI keyboard input.

Store your work using the microcontroller's EEPROM memory.

Performing Puhture's "Acid Track" with 2x TB-303 and 1x TR-808 tracks, using the same TB-303 programming notation as the original track. This performance relies solely on the Mute Grid system, moving back and forth between the intro, 2x build-ups, and a drop mute state.

Live composing and performing a track from scratch using Aciduino's composition tools, utilizing the harmonizer for melodic lines with the Ionian mode and a Euclidean rhythm generator for drum and percussive tracks.

Aciduino V1 live performance with 2x Roland Cloud TB-303 and 2x Dave Smith Tetra tracks, while sending a sync clock signal to a Roland Cloud TR-808.

SEQ32: A fantastic mod of Aciduino V1, featuring 3 tracks, 4 extension pots per track, and a button/LED array extension for step note control, built and performed by Conrad Vassallo.