Calculating distance between ESP32 units

[ambassadorkosh]

Id like to set up a swarm bot system such that independent ESP32 boards would not only be able to communicate with one another, but they would also be able to recognise the distance they are from one another.

Does anyone have any tips or resources on this subject?

Kosh

[Sprite]

Initially, you could try something based on rssi, but that's pretty inaccurate. The hardware should be capable of doing distance estimation using phase groups, but that very much lacks software support for now.