Overview

You can play music with the Trellis M4 by turning it into a great input device for synthesizers! It can send standard MIDI (Musical Instrument Digital Interface) note data over USB MIDI to a software synth on your computer, laptop, (including web browser based synths!), or mobile device.

Using the built-in accelerometer (thanks to Analog Devices for the ADXL343!), we can also send control change (CC) data, such as mod wheel, and filter cutoff values, and even pitch bend settings just by tilting the Trellis M4! 

You can even use the Trellis M4 to control hardware synthesizers by using a conversion device that acts as a USB MIDI host and sends out traditional MIDI over a 5-pin DIN cable or more modern TRS 3.5mm MIDI connection. It's even possible to go really old school and convert to gate and CV (control voltage) for a modular synth or pre-MIDI device..

Parts Used

Adafruit NeoTrellis M4 with Enclosure and Buttons Kit Pack

PRODUCT ID: 4020
So you've got a cool/witty name for your band, a Soundcloud account, a 3D-printed Daft Punk...

iOS Lightning to USB OTG Cable

PRODUCT ID: 3940
Your iOS phone or tablet may not have a USB port on the bottom but that doesn't mean you can't use it to connect USB devices. Secretly known as a 'Camera Connector' or...

USB Patterned Fabric Cable - A/MicroB

PRODUCT ID: 2008
Oooh it's so soft! And that beautiful pattern! If you have to have visible cables then you might as well have the nicest fabric bound cable with a eye-catching snake-like...

Little Rubber Bumper Feet - Pack of 4

PRODUCT ID: 550
Keep your electronics from going barefoot, give them little rubber feet! These small sticky bumpers are our favorite accessory for any electronic kit or device. They are sticky, but...

Assembly and Familiarization

Take a look at the Trellis M4 main guide for lots more info and the assembly page in case you haven't yet built the enclosure.

This guide was first published on Nov 11, 2018. It was last updated on Nov 11, 2018. This page (Overview) was last updated on Nov 19, 2018.