The New Arduino

The Duemilanove (meaning “2009” in Italian) is the latest addition to the Arduino line of microcontrollers. It looks like it’s predecessor, the Diecimila, and also shares similar specs with one main subtle difference: the Diecimila has a jumper which is used to select a power source (USB or external power) while the Duemilanove automatically selects the appropriate power supply , eliminating the need for the power selection jumper.

Other than that, you’re still getting all the luxuries you would from a Diecimila out of the Dueomilanove. Now, thanks to the removal of the power selection jumper, you’ll no longer have to worry about blocking the jumper after installing an Xport shield.

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