Just got the last of the demo code up and running. I've also decided to design the system to be more modular.
Essentially the Ranger Nodes will be made without Wi-Fi on board, which reduces cost and size. When operating without Wi-Fi (no standards support), the client needs to know the locations of all the Nodes.
Here is a pic of the new Ranger Node design overlaying the older design:
The headers on each side there allow a Wi-Fi breakout board to plug into the bottom, if Wi-Fi and/or SubPos Standard support is desired.