How it Works
Range Finder takes advantage of special packets in the 802.11 standard that are generated automatically by the hardware of the Wi-Fi radio chips in response to certain events. These hardware generated packets are created in such predicable time frames that the Range Finder software can calculate distances by subtracting out the time that it takes hardware to generate such a packet, and is left with the time that it takes light to make a round trip between the two radios.
one small step for Nomadio from Mesh network to Radio Control