ge_rik
British narrow gauge (esp. Southwold and W&LLR)
Sounds a bit like "cab control" on a track powered railway. Useful!Little bit OT - I am in the middle of making my own that does just this. I will get a thread started on it when I have some time (hahaha ).
The code I have written has a 'lock' feature - e.g. if Tx1 is 'linked' to RxA, you are unable to 'link' Tx2 to RxA until Tx1 has released it
I wanted this for (as an example use case) someone is in the yard, builds a train up, sends it out and releases it, allowing the next person to grab it and take it where it needs to go.
Rik