We will be closed on November 25, 2021 and November 26, 2021 in observance of the Thanksgiving holiday. We will resume normal operations on November 29, 2021. Wishing you a safe and happy holiday from all your friends at SparkFun!


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Member Since: September 14, 2007

Country: Norway

  • Hi, For getting +-9V with two units, how do you connect them together? Is it as simple as connecting the + on one to the - on the other? And wouldn't there then be a risk for damaging them, as they share a common ground (through the power cable)? I am just curious, as I am considering obtaining an another of these, have one, in order to get dual polarity when I need it. br,

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