If you want to have electronics at #37c3 that can determine their location using our system, please get a ESP32-C3 devkit and stay tuned.
We plan to have our Android App support the new positioning method as well.
This entire project is of course new and thus experimental, but we're excited about our test results so far and hope to have it work at congress.
More details on requirements and limitations below.
We will be using WiFi-FTM RTT measurements. In our testing we were able to reach a precision of <2m, we will see if that holds up at CCH. Precision of positioning on Android might be worse, we still have some testing and tweaking to do.
We also can't say how good our coverage will be yet. We want to to cover the entire area, but we don't know yet how well that will be possible in practice.
While we're optimistic, please consider this entire project experimental and not something to rely upon.
Other ESP chips that support WIFI-FTM should work too (don't use the C6, it has no software-support yet), but we test everything with C3 chips.
Our goal is to provide an ESP-IDF component that can determine its position. You can either use that component in your own code, or put it on its own devboard and talk to it via serial.
Right now, we expect the second option to be more reliable or more likely to work well for now, so if you're interested, please get a devkit to be on the safe side.
c3nav
Florian Gramß