This is very helpful! We’ve ordered a few XBee PRO S3B 900 modules but are having trouble getting them to communicate via the Mayfly script.
One thing we think may be a problem is whether or not we chose the ‘programmable’ version of the modules. I noticed that Scott had an issue with this in another post from earlier in the Spring, and that he just purchased non-programmable XBees and the situation resolved itself. I’m willing to just purchase those if that makes the difference, but figured it was worthwhile to ask you to see which versions of the 900 modules you had been using successfully.
One thing we’re also not convinced we are doing correctly is adding the proper libraries to the simple sketch you posted before (here). I don’t see any libraries in that and think that also may be an issue.
Do you have any suggestions?