The project started off as a simple “how cheap can I make a working SlimeVR tracker" and ended up turning into me trying to cram all the components into the smallest footprint I possibly could. It may not use the latest and greatest hardware, but at about 7-8 USD a tracker, a full set of these comes in at only about 72ish USD total (~116 USD including extra parts due to bundled listings/in case of DOA). Full documentation on how to source, print, and build these is available at The Docs.