Past Projects

These projects are preserved for reference and are mostly based on outdated software, hardware, and/or technology. Therefore they will not see any more updates or support.

VoIP

  • Yeaphone

    A SIP phone for Yealink USB-P1K handsets using liblinphone, ideal for Linux-based embedded devices.

Digital Signal Processing

  • kxProject - State Variable Filter

    A state variable filter plugin for the kX Project audio driver, implementing stereo high-, low-, and band-pass outputs.

HP48

  • HP48/49 Bode Diagram

    Bode diagram analysis of transfer functions for the HP48/49 handheld calculator.