We are working on a project and require 4 autonomous swarm robots to search and identify objects in a 2m diameter area. We have 4 robots capable of this however they need to be able to communicate their location to each other. Using motor encoders the path of one robot can be communicated to the other 3 upon identifying an object.
Currently we are using Bluno Nano boards with the BLE chip. We know that Bluetooth communication can be done 1 to 1 but not to multiple connections.
My question is that is it possible to have one Bluno board connect and then disconnect with each of the other 3 so that they communicate one at a time?
If not could a central hub be setup to allow communication between all 4 robots?
What other methods do swarm robotics use for communication?