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Permalink Reply by Paul Gregory on April 21, 2012 at 7:52am

I tried my 2.4GHz XBee system for the first time today.  As far as I can see, the BLUE LED indicated power on.  The two YELLOW LED's seem to be some sort of timing signal and the RED LED comes on when the modules are transmitting and receiving data. However, I am having a lot of problems with trying to get communications started in the first place, so most of the time, all I get is the BLUE light.

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