This is my attempt at writing some simple code for communicating between 2 x Xbee radios.
I have the master and slave code set up on 2 seperate Teensy 4.0's. The radios are Xbee Pro's but I think this would work on any Xbee radio thats in transparent mode.
Transmission rate is controlled in the master. There is also a timer based kick starter that gets the process started.
Probably plenty of other ways to do this but hey.