A Bluetooth-based contact counting gizmo for personal COVID-19 risk ballpark estimation This project is under construction. If you have questions, just ask!
Super-simple: (not yet posted) The simplest functional version, Lights only, no logging, eInk, or hopper-tracking.
Tsu Special: Lights only, connect-to-phone, hopper-tracking, no e-ink.
Dotch Special: Super gonzo version, all the bells and whistles. Lights, eInk, hopper-tracking, save-to-storage.