Drum patterns and colored lights! Use your grid controller with your software synth and keep the LEDs in sync with the GUI. The NeoTrellis MIDI Feedback Controller sends MIDI messages containing note information in order to program a trigger sequencer -- but here's the cool part: when the controller receives MIDI note messages back from the software it interprets them as NeoPixel commands!

Inspired by the excellent, Arduino-based design by PatchworkBoy, this simpler, CircuitPython-based approach will get you started quickly controlling four 16-step drum trigger sequences in a VCV Rack. You can then modify it to fit your needs.


Adafruit 8x8 Trellis Feather M4 Acrylic Enclosure + Hardware Kit showing contents
A super-specifically-laser-cut enclosure that turns your 8x8 'Trellis into a handheld light/music maker! Perfect for your next cool interface, MIDI instrument,...
In Stock
Angled shot of black rectangular microcontroller "Feather RP2040"
A new chip means a new Feather, and the Raspberry Pi RP2040 is no exception. When we saw this chip we thought "this chip is going to be awesome when we give it the Feather...
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Angled shot of 4-pin JST PH to JST SH Cable.
Are you a maker in the midst of a STEMMA dilemma? This 200mm long 4-wire...
Out of Stock

Alternative Controller

Hand pressing buttons that light up on a Adafruit 8x8 NeoTrellis Feather M4 Kit Pack.
We've upgraded our popular UNTZtrument with a total make-over, and it's been reborn as the NeoTrellis 8x8 Kit pack. This open-source 8x8 Grid Controller Kit with...
In Stock

This guide was first published on Jun 22, 2022. It was last updated on Jul 22, 2024.

This page (Overview) was last updated on Mar 08, 2024.

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