- “OpenCovidTrace” Full Stack / Project
- ENA “Simulator” Python3 (on linux)
- “ENA on ESP” ESP-IDF (on ESP32)
- “Tracestick” Arduino “on a stick”
- “CovidBracelet” Zepyhr (?)
- “Arduino Trancer” Ardiuno
- see Google documentation and
code for ENS server and ENS internals - see also Apple documentation