I have just bought a whole bunch of Xbee Pro S2Bs and Freetronics Eleven boards.
When I set up the XBees in AT mode, the Arduino constantly resets. At least that's what I think it is doing - the D13 LED keeps flashing (3 times in quick succession, once per second) and the sketch won't run.
In API Mode it seems fine, but I want to use AT mode for simplicity - anyone have any ideas why AT mode would be causing the Arduino to reset?
I have already asked this question on the Arduino forum but haven't got anywhere yet ...