You simply buy a coupleof XBee shields, plug in 2 modules and they will automatically communicate at 9600 bps, withoutany setup muckaround
But, they will be a lot faster if you do spent 5 minutes "mucking around", setting MY and DL to appropriate values, so that they don't broadcast to each other. Broadcast works, but is at least an order of magnitude slower than directed communication.
Afterwards you cancustomize all the settings.
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