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SparkFun Electronics will be closed on July 3rd, 2015 in observance of Independence Day. Any orders placed after 2:00pm MT on July 2nd will be shipped out after the weekend. Thanks!

Mageek

Member Since: October 23, 2009

Country: United States

  • For the Arduino Uno it is center-positive (barrel/sleeve-negative). I suspect it depends on what your application is. Use a multimeter to be sure.

No public wish lists :(