TŒRN is a hands-on standalone open-source sampler and step sequencer built around the Teensy Microcontroller, a 16×16 RGB matrix, with eight sample lanes, three multi-OSC.synth voices, Micro SD storage, four rotary encoders and onboard recording.
arduino modular teensy sequencer standalone open-hardware synthesizer recording sampler midi-controller drum-machine step-sequencer teensy41 dawless diy-synth kids-friendly live-looping studio-equipment
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Updated
Jul 21, 2026 - C++