David N8DAH has been working on a few projects. The first of these is a CW Zero Beat
https://www.youtube.com/watch?v=tSUGd2Igfic&feature=youtu.be
If anybody is interested in a CW Zero Beat addition to their µBITx, then he has nine in kit form and one built for testing available. The kits are US$13 shipped inside the US. Add actual shipping costs outside Continental USA. He can build them for you for $2 extra or only solder the surface mount and allow you to build your own.
J1- Power in 9-12V
RV1- Audio in adjustment
J2- Audio in
RV2- Center Freq Adjustment
Questions please e-mail David direct
David is also working on a new digital controlled audio level project (AGC) and hope to have more info soon but this is still only in the prototype stage.
David’s website is: Kit-Projects.com