I am a maker.
let me tinker my own:

NI404

Show me the improved
non-tinker version:

TŒRN

TŒRN

AVAILABLE MAY 2025

FOLLOW ME ON INSTAGRAM FOR UPDATES

The successor to the NI404.

The TŒRN builds on the legacy of the NI404 with enhanced features, a streamlined design, and superior functionality. From upgraded RGB-I2C rotary encoders to a custom PCB with everything pre-assembled, TŒRN is designed to be the ultimate DIY sampler-sequencer—accessible, powerful, and inspiring.

No more additional cables or extensions: every component is directly mounted on the PCB, ensuring ease of assembly and a clean build. With new connectivity options, expanded audio capabilities, and an updated design, this device is ready to meet the needs of DIY music creators.

TŒRN will be available in 05/2025.
stay informed at our Instagram page.

Whats different

  • High-quality RGB-I2C rotary encoders for smoother and more precise control.
  • Custom PCB: Fully assembled, simplifying the building process—just order and put it together.
  • USB-C Port: Replacing micro-USB for faster and more reliable connectivity.
  • Battery Charging Port: Added support for internal LiPo batteries for true portability.
  • Expanded Audio I/O: Professional connections including 6.35mm headphone output, line-in/out, and mic-in.
  • TRS MIDI In/Out Ports: Enhanced MIDI capabilities for seamless integration.
  • New Casing: Laser-cut acrylic housing for a polished, durable finish.

What's Inside

PCB

Custom-designed 4-layer PCB with integrated USB-C and audio interfaces. Pre-assembled with surface-mount components for easier DIY assembly.

LEDs

16x16 RGB LED matrix using WS2812B LEDs, providing vibrant visual feedback with 16 million colors per pixel. Optimized for both visibility and power efficiency.

Encoders

High-quality RGB-I2C rotary encoders with integrated push buttons. Each encoder features customizable RGB lighting for mode indication.

Battery

Optional LiPo battery support with integrated charging circuit. Hot-swappable design allows for continuous operation while charging. Up to 3 hours of portable use.

Housing

Precision laser-cut acrylic housing with anti-glare front panel. Modular design allows for easy access to internals. Available in smoke black or clear finish.

Firmware

Open-source firmware based on Teensy 4.1 platform. Features real-time audio processing, customizable sequencing patterns, and MIDI integration. Regular updates and community contributions.

Tech Specs

  • Microcontroller: Teensy 4.1 + Audio Board
  • Memory: 16MB PSRAM
  • Display: 16x16 RGB LED Matrix
  • Audio I/O: 6.35mm jacks for headphones, line-in/out, mic-in; internal microphone
  • Power: USB-C or optional LiPo battery with charging port