Adafruit 8×8 NeoTrellis Feather M4 Kit Pack

We’ve upgraded our popular UNTZtrument with a total make-over, and it’s been reborn as the NeoTrellis 8×8 Kit pack. This open-source 8×8 Grid Controller Kit with a super-specifically-laser-cut enclosure turns four panels of 4×4 NeoTrellis’s into a handheld Feather M4 Express-powered light/music maker! Perfect for your next cool interface, MIDI instrument, control panel… whatever could benefit from a glow-up with an elegant black and white enclosure and with beautiful diffused colorful buttons.

Please note this kit has undergone a complete revision from the UNTZtrument – it now uses a Feather M4 and has full-color NeoPixel buttons! The enclosure, code, and construction has changed.

The four 4×4 button pad boards are soldered together by you, and communicate over I2C to the Feather M4 mainboard.

With our trusty seesaw I2C-to-anything chip

, you don’t even need to manage the NeoPixel driving. That’s right! Both the button management and LED driving is completely handled for you all over plain I2C. We have both Arduino/C++ and CircuitPython/Python library support.

This pack contains everything you need to get started. Includes:

• 1 x

  Adafruit 8×8 NeoTrellis Acrylic Enclosure and Hardware kit

• 4 x

  Adafruit NeoTrellis RGB Driver PCB for 4×4 Keypad

• 4 x

  Silicone Elastomer 4×4 Button Keypad

• 1 x

  Adafruit Feather M4 Express

• 1 x

  JST PH 4-Pin to Male Header Cable – I2C STEMMA Cable – 200mm

If you’d like to make the board portable, for untethered projects, you can pick up the optional, not included:

• 1 x

  Lithium Ion Polymer Battery – 3.7v 500mAh

• 1 x

  Mini Panel Mount DPDT Toggle Switch

Soldering is required! You’ll have to solder wires to the Feather M4 and edge-solder together the NeoTrellis panels

Check out the assembly tutorial for how to put together the case

. Then

visit the NeoTrellis guide page for how to code this up into your very own custom controller

Technical Details