[rsaxvc]

If you want to get really spicy, you can use two antennas and an SDR to compute angle of arrival using nothing but a BLE advertisement's data . This is different from BLE AoA as it doesn't require a cooperative transmitter.

[alias_neo]

If you want to get really, really spicy, use three devices/antennas and you can roughly track in three-dimensional space.

[greggsy]

Wouldn’t three dimensional tracking need four antennas?

[rsaxvc]

Three appropriately spaced antennas will give you azimuth and elevation of a ray to the transmitter, but not distance.

But using two of the above in different, known locations would allow you to compute the intersection to a 3D location.

[milkshakes]

there are wifi setups that allow you to do this already.

[worthless-trash]

I would like to subscribe to this API.