Will the regulated XBee breakout board run directly off of 3.3v, or does it require a 5+v source to work properly? I’m creating a serial radio link for my ipod touch, and can pull 3.3v directly from the connector (so should be able to power the module directly), however I’d much rather be soldering to a breakout board rather than directly to the module.
That board has a 3.3V regulator on it, hence the name. I’m not sure of which regulator SparkFun uses so not sure of what the drop-out voltage of the regulator is. This board also has protection of the XBee DIN pin from 5V logic and a few LEDs.
You could remove and/or jumper out the regulator and supply 3.3V.
SparkFun also has an XBee break-out board that does not have any other components. Maybe that would suite your needs better.
there is an output pin for 3V3 at the board. Can’t you provide the power through that pin?
That would apply power to the output pin of the voltage regulator. Not really recommended but of the regulator output pin is lifted then yes, you can feed 3.3V.