Szrapnel
Hackable Synth Kit
A synth built to be poked, played, and reshaped. Szrapnel is a hands-on synthesizer for people who want to make sound happen without wrestling the machinery underneath.
It sits as a lightweight layer over the hardware, giving you a fast path from idea to audio experiment. Whether you're sketching quick sonic sketches or building an entire custom instrument, Szrapnel takes care of the timing, controls, display, and hardware plumbing so you can stay focused on shaping sound itself.
Calibrator750 is now available for purchase! Our first edition of 50 A2 revision boards is ready, and with Stripe integration now complete, you can securely checkout and order yours immediately. Stay tuned for more updates as production continues.
Calibrator750 is designed with purpose — a precise 26 MHz TCXO, paired-ground GPIOs, and open expansion zones — inviting you to shape it around your own ideas. It’s a tool for building real projects, not another blinking example.
You can soon order one from the first limited batch of 50 boards or learn more about its features and start building your own instrument, synth, or experiment.
Rocket Calibrator brings music-making into your pocket — blending precision engineering with playful design. Powered by the STM32H750 and a high-stability TCXO, it turns knobs and keys into sound experiments that stay perfectly in tune. It’s built for spontaneous creation — a tiny instrument that invites you to explore rhythm, harmony, and noise anywhere. Still in development, it’s the next step in shaping expressive, portable tools for musicians and makers.
Herztick is a pocket-sized tool built for curiosity — a playful signal generator and mini console for experiments, sound, and learning. Powered by an STM32L431 and a flexible Si5351 clock chip, it lets you explore waveforms, frequencies, and ideas wherever inspiration strikes. It’s not a lab instrument — it’s a hobby companion, made to be fun, approachable, and open for tinkering. Still evolving, Herztick aims to make signal generation feel more like play than precision.
