Pocket-Sized MIDI Controller with Accelerometer and Fader Bank

The 8mu is an ultra-compact USB and TRS MIDI controller featuring eight physical faders, dynamic gesture sensing, and multi-bank memory in a pocket-sized enclosure.

Inspired by the open-source 16n project, this tiny controller packs expressive modulation into a footprint slightly smaller than a credit card. It houses eight 15 mm faders, four top-edge tactile buttons, and an onboard 3-axis accelerometer that converts tilt, lift, and orientation movements into eight additional MIDI control signals.

In operation, the controller acts as a flexible bridge between desktop synths, computer DAWs, and modular setups. Its dual-mode 3.5 mm TRS MIDI output switches between Type A and Type B standards, while its USB-C port provides power and class-compliant MIDI transmission. Navigating the unit is straightforward: side-mounted step buttons jump through eight internal preset banks, a web-based editor handles mapping, and alternative firmware converts the hardware into a dedicated Radio Remote for the Music Thing Modular Radio Music mk2.

Because of its ultra-compact frame, the faders use short-throw sliders that require fine finger adjustments when dialing in precise parameter values compared to full-sized studio faders.