Using hub to bub BLE communication

[wobinb]

Hi all

I've been working on a project to control multiple train motors around a circuit. Using colour sensors the trains transmit their location to a central control hub which then instructs the train to either wait or move forward.

So far so good and I've had three trains running through five blocks at home without issue.

Took the layout to a lego show this weekend and wasn't able to get it to work. My assumption being that at a busy show there are too many other BLE devices and the messages simply weren't getting through. UPDATE: Just seen that a similar issue was reported here: https://github.com/orgs/pybricks/discussions/1593

I reverted to driving the trains manually using the stock lego firmware and remote controls. This worked fine. Does the fact that the devices are paired make them not subject to the same interference?

This being the case, is it possible to pair devices using PyBricks, and therefore potentially working around the problem?

Many thanks for any suggestions