

Built by DADDesign-Projects, Asynchronous SPDIF Mixer is an open hardware microcontroller board released with its KiCad design files intact. In the maintainer's words: “"Asynchronous SPDIF Mixer" synchronizes and mixes up to three asynchronous S/PDIF streams into a 48 kHz output. Running on an STM32H743 and developed in C++ with CubeIDE, it compensates for drift with interpolation. A custom KiCad-designed PCB hosts this real-time audio processing solution.”
It has 12 stars and 2 forks on GitHub, with the last commit 10 months ago.
What’s in the repository
- KiCad schematic and PCB layout source files
- Full revision history, so you can see how the board changed between versions
Licence and reuse
Released under MIT, one of the permissive licenses. You can fork the design, change it, manufacture it and sell the result, provided you keep the original copyright and license notice with the files.
Opening it in ProtoFlow
Select Edit in ProtoFlow for the available opening options. Download the source and open supported KiCad schematic or board files in the desktop app; check the project version and external libraries.
- 01 Select “Edit in ProtoFlow” for opening options. Download the source and open supported KiCad files in the app. Other EDA formats may need conversion.
- 02 Work in the imported local copy: rename nets, swap parts against live distributor stock, re-route, or strip it back to the sub-circuit you actually need.
- 03 Keep the original licence and credit DADDesign-Projects if you publish or sell what you build from it.
This page indexes a public repository. The design, the files and the copyright belong to DADDesign-Projects; ProtoFlow does not host, mirror or verify them. Details are read from GitHub and refreshed periodically — check the repository for the current state of the project.






